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19-0175; Rev 3; 5/96
15kV ESD-Protected, +5V RS-232 Transceivers
_______________General Description
The MAX202E-MAX213E, MAX232E/MAX241E line drivers/receivers are designed for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against 15kV electrostatic discharge (ESD) shocks, without latchup. The various combinations of features are outlined in the Selection Guide. The drivers and receivers for all ten devices meet all EIA/TIA-232E and CCITT V.28 specifications at data rates up to 120kbps, when loaded in accordance with the EIA/TIA-232E specification. The MAX211E/MAX213E/MAX241E are available in 28pin SO packages, as well as a 28-pin SSOP that uses 60% less board space. The MAX202E/MAX232E come in 16-pin narrow SO, wide SO, and DIP packages. The MAX203E comes in a 20-pin DIP/SO package, and needs no external charge-pump capacitors. The MAX205E comes in a 24-pin wide DIP package, and also eliminates external charge-pump capacitors. The MAX206E/MAX207E/MAX208E come in 24-pin SO, SSOP, and narrow DIP packages. The MAX232E/ MAX241E operate with four 1F capacitors, while the MAX202E/MAX206E/MAX207E/MAX208E/MAX211E/ MAX213E operate with four 0.1F capacitors, further reducing cost and board space.
____________________________Features
o ESD Protection for RS-232 I/O Pins: 15kV--Human Body Model 8kV--IEC1000-4-2, Contact Discharge 15kV--IEC1000-4-2, Air-Gap Discharge o Latchup Free (unlike bipolar equivalents) o Guaranteed 120kbps Data Rate--LapLinkTM Compatible o Guaranteed 3V/s Min Slew Rate o Operate from a Single +5V Power Supply
MAX202E-MAX213E, MAX232E/MAX241E
_________________Pin Configurations
TOP VIEW
C1+ 1 V+ 2 C1- 3 C2+ 4 C2- 5 V- 6 T2OUT 7 R2IN 8 16 VCC 15 GND 14 T1OUT
MAX202E MAX232E
13 R1IN 12 R1OUT 11 T1IN 10 T2IN 9 R2OUT
________________________Applications
Notebook, Subnotebook, and Palmtop Computers Battery-Powered Equipment Hand-Held Equipment
Ordering Information appears at end of data sheet.
DIP/SO Pin Configurations and Typical Operating Circuits continued at end of data sheet.
_____________________________________________________________Selection Guide
PART MAX202E MAX203E MAX205E MAX206E MAX207E MAX208E MAX211E MAX213E MAX232E MAX241E No. of RS-232 DRIVERS 2 2 5 4 5 4 4 4 2 4 No. of RS-232 RECEIVERS 2 2 5 3 3 4 5 5 2 5 RECEIVERS ACTIVE IN SHUTDOWN 0 0 0 0 0 0 0 2 0 0 No. of EXTERNAL CAPACITORS 4 (0.1F) None None 4 (0.1F) 4 (0.1F) 4 (0.1F) 4 (0.1F) 4 (0.1F) 4 (1F) 4 (1F) LOW-POWER SHUTDOWN No No Yes Yes No No Yes Yes No Yes TTL THREESTATE No No Yes Yes No No Yes Yes No Yes
LapLink is a registered trademark of Traveling Software, Inc.
________________________________________________________________ Maxim Integrated Products 1
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15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
ABSOLUTE MAXIMUM RATINGS
VCC ...........................................................................-0.3V to +6V V+ ................................................................(VCC - 0.3V) to +14V V- ............................................................................-14V to +0.3V Input Voltages T_IN ............................................................-0.3V to (V+ + 0.3V) R_IN ...................................................................................30V Output Voltages T_OUT.................................................(V- - 0.3V) to (V+ + 0.3V) R_OUT ......................................................-0.3V to (VCC + 0.3V) Short-Circuit Duration, T_OUT....................................Continuous Continuous Power Dissipation (TA = +70C) 16-Pin Plastic DIP (derate 10.53mW/C above +70C)....842mW 16-Pin Narrow SO (derate 8.70mW/C above +70C) .....696mW 16-Pin Wide SO (derate 9.52mW/C above +70C) ......762mW 20-Pin Plastic DIP (derate 11.11mW/C above +70C)...889mW 20-Pin SO (derate 10.00mW/C above +70C).............800mW 24-Pin Narrow Plastic DIP (derate 13.33mW/C above +70C) ...............................1.07W 24-Pin Wide Plastic DIP (derate 14.29mW/C above +70C) ................................1.14W 24-Pin SO (derate 11.76mW/C above +70C).............941mW 24-Pin SSOP (derate 8.00mW/C above +70C) ..........640mW 28-Pin SO (derate 12.50mW/C above +70C)....................1W 28-Pin SSOP (derate 9.52mW/C above +70C) ..........762mW Operating Temperature Ranges MAX2_ _EC_ _ .....................................................0C to +70C MAX2_ _EE_ _...................................................-40C to +85C Storage Temperature Range .............................-65C to +165C Lead Temperature (soldering, 10sec) .............................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = +5V 10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC = +5V 5% for MAX203E/205E/207E; C1-C4 = 0.1F for MAX202E/206E/207E/208E/211E/213E; C1-C4 = 1F for MAX232E/241E; TA = TMIN to TMAX; unless otherwise noted. Typical values are at TA = +25C.) PARAMETER DC CHARACTERISTICS MAX202E/203E MAX205E-208E VCC Supply Current ICC No load, TA = +25C MAX211E/213E MAX232E MAX241E MAX205E/206E Shutdown Supply Current LOGIC Input Pull-Up Current Input Leakage Current Input Threshold Low VIL T_IN = 0V (MAX205E-208E/211E/213E/241E) T_IN = 0V to VCC (MAX202E/203E/232E) T_IN; EN, SHDN (MAX213E) or EN, SHDN (MAX205E-208E/211E/241E) T_IN Input Threshold High VIH EN, SHDN (MAX213E) or EN, SHDN (MAX205E-208E/211E/241E) R_OUT; IOUT = 3.2mA (MAX202E/203E/232E) or IOUT = 1.6mA (MAX205E/208E/211E/213E/241E) R_OUT; IOUT = -1.0mA EN = VCC, EN = 0V, 0V ROUT VCC, MAX205E-208E/211E/213E/241E outputs disabled 3.5 VCC - 0.4 0.05 10 2.0 2.4 0.4 V 15 200 10 0.8 A A V TA = +25C, Figure 1 MAX211E/241E MAX213E 8 11 14 5 7 1 1 15 15 20 20 10 15 10 10 50 A mA SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage Low Output Voltage High Output Leakage Current
VOL VOH
V V A
2
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15kV ESD-Protected, +5V RS-232 Transceivers
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V 10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC = +5V 5% for MAX203E/205E/207E; C1-C4 = 0.1F for MAX202E/206E/207E/208E/211E/213E; C1-C4 = 1F for MAX232E/241E; TA = TMIN to TMAX; unless otherwise noted. Typical values are at TA = +25C.) PARAMETER Input Voltage Range All parts, normal operation Input Threshold Low TA = +25C, VCC = 5V MAX213E, SHDN = 0V, EN = VCC All parts, normal operation Input Threshold High Input Hysteresis Input Resistance EIA/TIA-232E TRANSMITTER OUTPUTS Output Voltage Swing Output Resistance Output Short-Circuit Current TIMING CHARACTERISTICS Maximum Data Rate tPLHR, tPHLR RL = 3k to 7k, CL = 50pF to 1000pF, one transmitter switching All parts, normal operation Receiver Propagation Delay CL = 150pF MAX213E (R4, R5), SHDN = 0V, EN = VCC 120 0.5 4 600 200 2 10 40 s kbps All drivers loaded with 3k to ground (Note 1) VCC = V+ = V- = 0V, VOUT = 2V 5 300 10 60 9 V mA TA = +25C, VCC = 5V MAX213E (R4, R5), SHDN = 0V, EN = VCC 0.2 3 SYMBOL CONDITIONS MIN -30 0.8 0.6 TYP MAX 30 1.2 1.5 1.7 1.5 0.5 5 2.4 2.4 1.0 7 V V k V UNITS V
MAX202E-MAX213E, MAX232E/MAX241E
EIA/TIA-232E RECEIVER INPUTS
VCC = 5V, no hysteresis in shutdown TA = +25C, VCC = 5V
Receiver Output Enable Time Receiver Output Disable Time Transmitter Propagation Delay tPLHT, tPHLT
MAX205E/206E/211E/213E/241E normal operation, Figure 2 MAX205E/206E/211E/213E/241E normal operation, Figure 2 RL = 3k, CL = 2500pF, all transmitters loaded TA = +25C, VCC = 5V, RL = 3k to 7k, CL = 50pF to 1000pF, measured from -3V to +3V or +3V to -3V, Figure 3
ns ns s
Transition-Region Slew Rate
3
6
30
V/s
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS Human Body Model ESD-Protection Voltage IEC1000-4-2, Contact Discharge IEC1000-4-2, Air-Gap Discharge Note 1: MAX211EE_ _ and MAX213EE_ _ tested with VCC = +5V 5%. Note 1: MAX211EE_ _ tested with VCC = +5V 5%. 15 8 15 kV
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15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
__________________________________________Typical Operating Characteristics
(Typical Operating Circuits, VCC = +5V, TA = +25C, unless otherwise noted.)
MAX202E/MAX203E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE
MAX202E-TOC1 MAX202E-TOC2
MAX232E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE
8.0 7.5 VOH, -VOL (V) 7.0 6.5 V CC = 5.0V 6.0 5.5 V CC = 4.5V 5.0 0 1000 2000 3000 4000 5000 LOAD CAPACITANCE (pF) 5.0 0 V CC = 5.5V ALL TRANSMITTERS LOADED DATA RATE = 120kbps RL = 3k 8.0 7.5 VOH, -VOL (V) 7.0 6.5 6.0 5.5
MAX241E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE
ALL TRANSMITTERS LOADED DATA RATE = 120kbps RL = 3k V CC = 5.5V
MAX202E-TOC3
ALL TRANSMITTERS LOADED DATA RATE = 120kbps RL = 3k
8.0 7.5 VOH, -VOL (V) 7.0 6.5 6.0 5.5
V CC = 5.5V V CC = 5.0V
V CC = 5.0V
V CC = 4.5V 5.0 1000 2000 3000 4000 5000 0
V CC = 4.5V 1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
MAX211E/MAX213E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE
MAX202E-TOC4
MAX211E/MAX213E/MAX241E TRANSMITTER SLEW RATE vs. LOAD CAPACITANCE
ALL TRANSMITTERS LOADED DATA RATE = 120kbps RL = 3k
MAX202E-TOC5
8.0 7.5 VOH, -VOL (V) 7.0 6.5 6.0 5.5 5.0 V CC = 4.5V 0 1000 2000 V CC = 5.0V 3000 4000 ALL TRANSMITTERS LOADED DATA RATE = 120kbps RL = 3k
30 25 SLEW RATE ( V/s) 20 15 10 -SLEW RATE 5 +SLEW RATE 0
V CC = 5.5V
5000
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
4
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15kV ESD-Protected, +5V RS-232 Transceivers
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuits, VCC = +5V, TA = +25C, unless otherwise noted.)
MAX205E-MAX208E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE
20kbps 120kbps 240kbps SLEW RATE (V/s) 2.5 0 -2.5 240kbps -5.0 -7.5 0 1000 2000 3000 4000 5000 0 1000 2000 3000 4000 5000 LOAD CAPACITANCE (pF) LOAD CAPACITANCE (pF) 120kbps 20kbps VCC = +4.5V, RL = 3k 1 TRANSMITTER AT FULL DATA RATE 4 TRANSMITTERS AT 1/8 DATA RATE
MAX202E TOC-07 MAX202E-TOC6
MAX202E-MAX213E, MAX232E/MAX241E
MAX202E/MAX203E/MAX232E TRANSMITTER SLEW RATE vs. LOAD CAPACITANCE
14 12 SLEW RATE ( V/s) 10 8 -SLEW RATE 6 4 2 +SLEW RATE ALL TRANSMITTERS LOADED DATA RATE = 120kbps RL = 3k 7.5 5.0 OUTPUT VOLTAGE (V)
MAX205E-MAX208E TRANSMITTER SLEW RATE vs. LOAD CAPACITANCE
18 16 14 12 10 8 6 4 2 0 0 1000 2000 3000 4000 5000 LOAD CAPACITANCE (pF) RISE FALL VCC = +4.5V, RL = 3k 1 TRANSMITTER AT FULL DATA RATE 4 TRANSMITTERS AT 1/8 DATA RATE
MAX202E TOC-08
20
MAX205E-MAX208E SUPPLY CURRENT vs. LOAD CAPACITANCE
MAX202E TOC-09
MAX205E-MAX208E OUTPUT VOLTAGE vs. DATA RATE
7.5 OUTPUT VOLTAGE (V) 5.0 2.5 0 -2.5 -5.0 VOUTV0 30 60 90 120 150 180 210 240 DATA RATE (kbps) V+ VOUT+ VCC = +4.5V, RL = 3k 1 TRANSMITTER AT FULL DATA RATE 4 TRANSMITTERS AT 1/8 DATA RATE
MAX202E TOC-10
50 240kbps 45 SUPPLY CURRENT (mA) 40 35 30 25 20 0 1000 2000 3000 4000 20kbps VCC = +4.5V, RL = 3k 1 TRANSMITTER AT FULL DATA RATE 4 TRANSMITTERS AT 1/8 DATA RATE 120kbps
10.0
-7.5 -10.0 5000
LOAD CAPACITANCE (pF)
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5
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
_____________________________________________________________Pin Descriptions
MAX202E/MAX232E
PIN DIP/SO 1, 3 2 4, 5 6 7, 14 8, 13 9, 12 10, 11 15 16 __ LCC 2, 4 3 5, 7 8 9, 18 10, 17 12, 15 13, 14 19 20 1, 6, 11, 16 NAME C1+, C1V+ C2+, C2VT_OUT R_IN R_OUT T_IN GND VCC N.C. FUNCTION Terminals for positive charge-pump capacitor +2VCC voltage generated by the charge pump Terminals for negative charge-pump capacitor -2VCC voltage generated by the charge pump RS-232 Driver Outputs RS-232 Receiver Outputs RS-232 Receiver Outputs RS-232 Driver Inputs Ground +4.5V to +5.5V Supply-Voltage Input No Connect--not internally connected.
MAX203E
PIN DIP 1, 2 3, 20 4,19 5,18 6, 9 7 8 10, 16 12, 17 13 14 11, 15 SO 1, 2 3, 20 4, 19 5, 18 6, 9 7 13 11, 16 10, 17 14 8 12, 15 NAME T_IN R_OUT R_IN T_OUT GND VCC C1+ C2VC1V+ C2+ FUNCTION RS-232 Driver Inputs RS-232 Receiver Outputs RS-232 Receiver Inputs RS-232 Transmitter Outputs Ground +4.5V to +5.5V Supply-Voltage Input Make no connection to this pin. Connect pins together. -2VCC voltage generated by the charge pump. Connect pins together. Make no connection to this pin. +2VCC voltage generated by the charge pump Connect pins together.
MAX205E
PIN 1-4, 19 5, 10, 13, 18, 24 6, 9, 14, 17, 23 7, 8, 15, 16, 22 11 12 20 21 NAME T_OUT R_IN R_OUT T_IN GND VCC EN SHDN FUNCTION RS-232 Driver Outputs RS-232 Receiver Inputs TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown. TTL/CMOS Driver Inputs. Internal pull-ups to VCC. Ground +4.75V to +5.25V Supply Voltage Receiver Enable--active low Shutdown Control--active high
6
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15kV ESD-Protected, +5V RS-232 Transceivers
________________________________________________Pin Descriptions (continued)
MAX206E
PIN 1, 2, 3, 24 4, 16, 23 5, 17, 22 6, 7, 18, 19 8 9 10, 12 11 13, 14 15 20 21 NAME T_OUT R_IN R_OUT T_IN GND VCC C1+, C1V+ C2+, C2VEN SHDN FUNCTION RS-232 Driver Outputs RS-232 Receiver Inputs TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown. TTL/CMOS Driver Inputs. Internal pull-ups to VCC. Ground +4.5V to +5.5V Supply Voltage Terminals for positive charge-pump capacitor +2VCC generated by the charge pump Terminals for negative charge-pump capacitor -2VCC generated by the charge pump Receiver Enable--active low Shutdown Control--active high
MAX202E-MAX213E, MAX232E/MAX241E
MAX207E
PIN 1, 2, 3, 20, 24 4, 16, 23 5, 17, 22 6, 7, 18, 19, 21 8 9 10, 12 11 13, 14 15 NAME T_OUT R_IN R_OUT T_IN GND VCC C1+, C1V+ C2+, C2VFUNCTION RS-232 Driver Outputs RS-232 Receiver Inputs TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown. TTL/CMOS Driver Inputs. Internal pull-ups to VCC. Ground +4.75V to +5.25V Supply Voltage Terminals for positive charge-pump capacitor +2VCC generated by the charge pump Terminals for negative charge-pump capacitor -2VCC generated by the charge pump
MAX208E
PIN 1, 2, 20, 24 3, 7, 16, 23 4, 6, 17, 22 5, 18, 19, 21 8 9 10, 12 11 13, 14 15 NAME T_OUT R_IN R_OUT T_IN GND VCC C1+, C1V+ C2+, C2VFUNCTION RS-232 Driver Outputs RS-232 Receiver Inputs TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown. TTL/CMOS Driver Inputs. Internal pull-ups to VCC. Ground +4.5V to +5.5V Supply Voltage Terminals for positive charge-pump capacitor +2VCC generated by the charge pump Terminals for negative charge-pump capacitor -2VCC generated by the charge pump
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7
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
________________________________________________Pin Descriptions (continued)
MAX211E/MAX213E/MAX241E
PIN 1, 2, 3, 28 4, 9, 18, 23, 27 5, 8, 19, 22, 26 6, 7, 20, 21 10 11 12, 14 13 15, 16 17 24 NAME T_OUT R_IN R_OUT T_IN GND VCC C1+, C1V+ C2+, C2VEN EN SHDN SHDN FUNCTION RS-232 Driver Outputs RS-232 Receiver Inputs TTL/CMOS Receiver Outputs. For the MAX213E, receivers R4 and R5 are active in shutdown mode when EN = 1. For the MAX211E and MAX241E, all receivers are inactive in shutdown. TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pull-ups to V CC. Ground +4.5V to +5.5V Supply Voltage Terminals for positive charge-pump capacitor +2VCC voltage generated by the charge pump Terminals for negative charge-pump capacitor -2VCC voltage generated by the charge pump Receiver Enable--active low (MAX211E, MAX241E) Receiver Enable--active high (MAX213E) Shutdown Control--active high (MAX211E, MAX241E) Shutdown Control--active low (MAX213E)
25
ISHDN +5.5V 0.1F* C1+ 0.1F* C1VCC V+ OUTPUT ENABLE TIME 0.1F* 0.1F* EN INPUT +3V 0V
MAX206E MAX213E MAX241E
VRECEIVER OUTPUT CL = 150pF
+3.5V +0.8V
0.1F*
MAX211E C2+ V CC
C2400k
+5.5V
T_IN
T1 TO T5 T_OUT 3k R_IN 5k +5.5V NOTE: POLARITY OF EN IS REVERSED FOR THE MAX213E EN INPUT 0V
+3V
R_OUT 0V OR +5.5V DRIVE +5.5V (0V) ( ) ARE FOR MAX213E *1F FOR MAX241E EN (EN)
R1 TO R5
OUTPUT DISABLE TIME VOH VOL VOH - 0.1V RL = 1k VOL + 0.1V +2.5V
RECEIVER OUTPUTS
SHDN (SHDN) GND CAPACITORS MAY BE POLARIZED OR UNPOLARIZED
Figure 1. Shutdown-Current Test Circuit (MAX206E, MAX211E/MAX213E/MAX241E)
8
Figure 2. Receiver Output Enable and Disable Timing (MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)
_______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
+5V 0.1F* C1+ 0.1F* C1VCC V+ 0.1F* 0.1F*
+5V 0.1F* C1+ 0.1F* C1VCC V+
0.1F*
0.1F*
MAX2_ _E
0.1F* C2+ V CC C2400k T_ T_IN R_ R_OUT 0V (+5V) 0V (+5V) EN (EN) SHDN (SHDN)
V0.1F* C2+ V CC C2-
MAX2_ _E
400k T_ T_IN 3k 2500pF R_OUT 0V (+5V) 0V (+5V) EN (EN) SHDN (SHDN) R_
V-
T_OUT
T_OUT 50pF
R_IN 5k
R_IN 5k
7k
MINIMUM SLEW-RATE TEST CIRCUIT ( ) ARE FOR MAX213E * 1F FOR MAX232E/MAX241E
MAXIMUM SLEW-RATE TEST CIRCUIT
TRANSMITTER INPUT PULL-UP RESISTORS, ENABLE, AND SHUTDOWN ARE NOT PROVIDED ON THE MAX202E, MAX203E, AND MAX232E. ENABLE AND SHUTDOWN ARE NOT PROVIDED ON THE MAX207E AND MAX208E.
Figure 3. Transition Slew-Rate Circuit
_______________Detailed Description
The MAX202E-MAX213E, MAX232E/MAX241E consist of three sections: charge-pump voltage converters, drivers (transmitters), and receivers. These E versions provide extra protection against ESD. They survive 15kV discharges to the RS-232 inputs and outputs, tested using the Human Body Model. When tested according to IEC1000-4-2, they survive 8kV contactdischarges and 15kV air-gap discharges. The rugged E versions are intended for use in harsh environments or applications where the RS-232 connection is frequently changed (such as notebook computers). The standard (non-"E") MAX202, MAX203, MAX205- MAX208, MAX211, MAX213, MAX232, and MAX241 are recommended for applications where cost is critical.
into -10V, storing the -10V on the V- output filter capacitor, C4. In shutdown mode, V+ is internally connected to VCC by a 1k pull-down resistor, and V- is internally connected to ground by a 1k pull-up resistor.
RS-232 Drivers
With VCC = 5V, the typical driver output voltage swing is 8V when loaded with a nominal 5k RS-232 receiver. The output swing is guaranteed to meet EIA/TIA-232E and V.28 specifications that call for 5V minimum output levels under worst-case conditions. These include a 3k load, minimum V CC , and maximum operating temperature. The open-circuit output voltage swings from (V+ - 0.6V) to V-. Input thresholds are CMOS/TTL compatible. The unused drivers' inputs on the MAX205E-MAX208E, MAX211E, MAX213E, and MAX241E can be left unconnected because 400k pull-up resistors to VCC are included on-chip. Since all drivers invert, the pullup resistors force the unused drivers' outputs low. The MAX202E, MAX203E, and MAX232E do not have pullup resistors on the transmitter inputs.
9
+5V to 10V Dual Charge-Pump Voltage Converter
The +5V to 10V conversion is performed by dual charge-pump voltage converters (Figure 4). The first charge-pump converter uses capacitor C1 to double the +5V into +10V, storing the +10V on the output filter capacitor, C3. The second uses C2 to invert the +10V
_______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
When in low-power shutdown mode, the MAX205E/ MAX206E/MAX211E/MAX213E/MAX241E driver outputs are turned off and draw only leakage currents--even if they are back-driven with voltages between 0V and 12V. Below -0.5V in shutdown, the transmitter output is diode-clamped to ground with a 1k series impedance.
Shutdown and Enable Control (MAX205E/MAX206E/MAX211E/ MAX213E/MAX241E)
In shutdown mode, the charge pumps are turned off, V+ is pulled down to VCC, V- is pulled to ground, and the transmitter outputs are disabled. This reduces supply current typically to 1A (15A for the MAX213E). The time required to exit shutdown is under 1ms, as shown in Figure 5.
RS-232 Receivers
The receivers convert the RS-232 signals to CMOS-logic output levels. The guaranteed 0.8V and 2.4V receiver input thresholds are significantly tighter than the 3V thresholds required by the EIA/TIA-232E specification. This allows the receiver inputs to respond to TTL/CMOSlogic levels, as well as RS-232 levels. The guaranteed 0.8V input low threshold ensures that receivers shorted to ground have a logic 1 output. The 5k input resistance to ground ensures that a receiver with its input left open will also have a logic 1 output. Receiver inputs have approximately 0.5V hysteresis. This provides clean output transitions, even with slow rise/fall-time signals with moderate amounts of noise and ringing. In shutdown, the MAX213E's R4 and R5 receivers have no hysteresis.
Receivers All MAX213E receivers, except R4 and R5, are put into a high-impedance state in shutdown mode (see Tables 1a and 1b). The MAX213E's R4 and R5 receivers still function in shutdown mode. These two awake-inshutdown receivers can monitor external activity while maintaining minimal power consumption. The enable control is used to put the receiver outputs into a high-impedance state, to allow wire-OR connection of two EIA/TIA-232E ports (or ports of different types) at the UART. It has no effect on the RS-232 drivers or the charge pumps. Note: The enable control pin is active low for the MAX211E/MAX241E (EN), but is active high for the MAX213E (EN). The shutdown control pin is active high for the MAX205E/MAX206E/MAX211E/MAX241E (SHDN), but is active low for the MAX213E (SHDN).
V+ S1 VCC C1+ C1 S2 C3 S5 C2+ S6 C2 C4 S8 VC2GND ILRL-
IL +
RL +
S3 GND C1-
S4 VCC
S7
fCLK
PART MAX202E MAX203E MAX205E-208E MAX211E/213E MAX232E MAX241E
fCLK (kHz) 230 230 200 200 140 30
Figure 4. Charge-Pump Diagram
10
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15kV ESD-Protected, +5V RS-232 Transceivers
The MAX213E's receiver propagation delay is typically 0.5s in normal operation. In shutdown mode, propagation delay increases to 4s for both rising and falling transitions. The MAX213E's receiver inputs have approximately 0.5V hysteresis, except in shutdown, when receivers R4 and R5 have no hysteresis. When entering shutdown with receivers active, R4 and R5 are not valid until 80s after SHDN is driven low. When coming out of shutdown, all receiver outputs are invalid until the charge pumps reach nominal voltage levels (less than 2ms when using 0.1F capacitors).
MAX202E-MAX213E, MAX232E/MAX241E
MAX211E
3V 0V 10V 5V 0V -5V -10V VV+ SHDN
15kV ESD Protection
As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly. The driver outputs and receiver inputs have extra protection against static electricity. Maxim's engineers developed state-of-the-art structures to protect these pins against ESD of 15kV without damage. The ESD structures withstand high ESD in all states: normal operation, shutdown, and powered down. After an ESD event, Maxim's E versions keep working without latchup, whereas competing RS-232 products can latch and must be powered down to remove latchup. ESD protection can be tested in various ways; the transmitter outputs and receiver inputs of this product family are characterized for protection to the following limits: 1) 15kV using the Human Body Model 2) 8kV using the contact-discharge method specified in IEC1000-4-2 3) 15kV using IEC1000-4-2's air-gap method.
200s/div
Figure 5. MAX211E V+ and V- when Exiting Shutdown (0.1F capacitors)
Table 1a. MAX205E/MAX206E/MAX211E/ MAX241E Control Pin Configurations
SHDN 0 0 1
EN
0 1 X
OPERATION STATUS Normal Operation Normal Operation Shutdown
Tx All Active All Active All High-Z
Rx All Active All High-Z All High-Z
X = Don't Care
ESD Test Conditions ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test set-up, test methodology, and test results. Human Body Model Figure 6a shows the Human Body Model, and Figure 6b shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the test device through a 1.5k resistor.
Table 1b. MAX213E Control Pin Configurations
SHDN
0 0 1 1
EN
OPERATION STATUS Shutdown Shutdown Normal Operation Normal Operation
Rx Tx 1-4 1-3 All High-Z All High-Z All Active All Active High-Z High-Z High-Z Active 4, 5 High-Z Active* High-Z Active
0 1 0 1
*Active = active with reduced performance
______________________________________________________________________________________
11
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
RC 1M CHARGE-CURRENT LIMIT RESISTOR HIGHVOLTAGE DC SOURCE
RD 1500 DISCHARGE RESISTANCE DEVICE UNDER TEST HIGHVOLTAGE DC SOURCE
RC 50M to 100M CHARGE CURRENT LIMIT RESISTOR
RD 330 DISCHARGE RESISTANCE DEVICE UNDER TEST
Cs 100pF
STORAGE CAPACITOR
Cs 150pF
STORAGE CAPACITOR
Figure 6a. Human Body ESD Test Model
Figure 7a. IEC1000-4-2 ESD Test Model
I IP 100% 90% AMPERES 36.8% 10% 0 0 tRL TIME tDL CURRENT WAVEFORM 10% t r = 0.7ns to 1ns t 30ns 60ns I PEAK Ir PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) 100% 90%
Figure 6b. Human Body Model Current Waveform
IEC1000-4-2 The IEC1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifically refer to integrated circuits. The MAX202E/MAX203E-MAX213E, MAX232E/MAX241E help you design equipment that meets level 4 (the highest level) of IEC1000-4-2, without the need for additional ESD-protection components. The major difference between tests done using the Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2, because series resistance is lower in the IEC1000-4-2 model. Hence, the ESD withstand voltage measured to IEC1000-4-2 is generally lower than that measured using the Human Body Model. Figure 7b shows the current waveform for the 8kV IEC1000-4-2 level-four ESD contact-discharge test.
12
Figure 7b. IEC1000-4-2 ESD Generator Current Waveform
The air-gap test involves approaching the device with a charged probe. The contact-discharge method connects the probe to the device before the probe is energized.
Machine Model The Machine Model for ESD tests all pins using a 200pF storage capacitor and zero discharge resistance. Its objective is to emulate the stress caused by contact that occurs with handling and assembly during manufacturing. Of course, all pins require this protection during manufacturing, not just RS-232 inputs and outputs. Therefore, after PC board assembly, the Machine Model is less relevant to I/O ports.
______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers
__________Applications Information
Capacitor Selection
The capacitor type used for C1-C4 is not critical for proper operation. The MAX202E, MAX206-MAX208E, MAX211E, and MAX213E require 0.1F capacitors, and the MAX232E and MAX241E require 1F capacitors, although in all cases capacitors up to 10F can be used without harm. Ceramic, aluminumelectrolytic, or tantalum capacitors are suggested for the 1F capacitors, and ceramic dielectrics are suggested for the 0.1F capacitors. When using the minimum recommended capacitor values, make sure the capacitance value does not degrade excessively as the operating temperature varies. If in doubt, use capacitors with a larger (e.g., 2x) nominal value. The capacitors' effective series resistance (ESR), which usually rises at low temperatures, influences the amount of ripple on V+ and V-. Use larger capacitors (up to 10F) to reduce the output impedance at V+ and V-. This can be useful when "stealing" power from V+ or from V-. The MAX203E and MAX205E have internal charge-pump capacitors. Bypass V CC to ground with at least 0.1F. In applications sensitive to power-supply noise generated by the charge pumps, decouple VCC to ground with a
MAX202E-MAX213E, MAX232E/MAX241E
capacitor the same size as (or larger than) the chargepump capacitors (C1-C4).
V+ and V- as Power Supplies
A small amount of power can be drawn from V+ and V-, although this will reduce both driver output swing and noise margins. Increasing the value of the charge-pump capacitors (up to 10F) helps maintain performance when power is drawn from V+ or V-.
Driving Multiple Receivers
Each transmitter is designed to drive a single receiver. Transmitters can be paralleled to drive multiple receivers.
Driver Outputs when Exiting Shutdown
The driver outputs display no ringing or undesirable transients as they come out of shutdown.
High Data Rates
These transceivers maintain the RS-232 5.0V minimum driver output voltages at data rates of over 120kbps. For data rates above 120kbps, refer to the Transmitter Output Voltage vs. Load Capacitance graphs in the Typical Operating Characteristics. Communication at these high rates is easier if the capacitive loads on the transmitters are small; i.e., short cables are best.
Table 2. Summary of EIA/TIA-232E, V.28 Specifications
PARAMETER 0 Level Driver Output Voltage 1 Level Driver Output Level, Max Data Rate 0 Level Receiver Input Voltage 1 Level Receiver Input Level Instantaneous Slew Rate, Max Driver Output Short-Circuit Current, Max V.28 Transition Rate on Driver Output EIA/TIA-232E Driver Output Resistance -2V < VOUT < +2V 4% of the period 300 3k RL 7k, CL 2500pF -3V to -15V 25V 30V/s 100mA 1ms or 3% of the period 3k to 7k load No load 3k RL 7k, CL 2500pF -5V to -15V 25V Up to 20kbps +3V to +15V CONDITIONS 3k to 7k load EIA/TIA-232E, V.28 SPECIFICATIONS +5V to +15V
______________________________________________________________________________________
13
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
Table 3. DB9 Cable Connections Commonly Used for EIA/TIAE-232E and V.24 Asynchronous Interfaces
PIN CONNECTION Received Line Signal Detector (sometimes called Carrier Detect, DCD) Receive Data (RD) Transmit Data (TD) Data Terminal Ready Signal Ground Data Set Ready (DSR) Request to Send (RTS) Clear to Send (CTS) Ring Indicator
1
Handshake from DCE
2 3 4 5 6 7 8 9
Data from DCE Data from DTE Handshake from DTE Reference point for signals Handshake from DCE Handshake from DTE Handshake from DCE Handshake from DCE
____________Pin Configurations and Typical Operating Circuits (continued)
TOP VIEW
+5V INPUT 0.1F 16 1 0.1F* 6.3V C1+ 1 V+ 2 C1- 3 C2+ 4 C2- 5 V- 6 T2OUT 7 R2IN 8 16 VCC 15 GND 14 T1OUT 11 TTL/CMOS INPUTS 10 T2IN T2 T2OUT 7 0.1F* 16V 3 4 5 C1+ VCC V+ 2 +10V -10V 0.1F* 16V +5V TO +10V C1- VOLTAGE DOUBLER C2+ +10V TO -10V C2- VOLTAGE INVERTER 0.1F* 6.3V
V-
6
MAX202E MAX232E
13 R1IN 12 R1OUT 11 T1IN 10 T2IN 9 R2OUT TTL/CMOS OUTPUTS
T1IN
T1
T1OUT 14 RS-232 OUTPUTS
12
R1OUT
R1 5k
R1IN 13 RS-232 INPUTS
DIP/SO
9
R2OUT
R2 5k
R2IN
8
PIN NUMBERS ON TYPICAL OPERATING CIRCUIT REFER TO DIP/SO PACKAGE, NOT LCC. * 1.0F CAPACITORS, MAX232E ONLY.
GND 15
14
______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers
____________Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT 0.1F 7 VCC 400k T2IN 1 T1IN 2 R1OUT 3 R1IN 4 T1OUT 5 GND 6 20 R2OUT 19 R2IN 18 T2OUT 17 VTTL/CMOS INPUTS 1 3 TTL/CMOS OUTPUTS 20 R2OUT R2 T2IN R1OUT 2 T1IN +5V 400k T2 R1 T2OUT R1IN 5k R2IN 5k DO NOT MAKE CONNECTION TO THESE PINS INTERNAL -10V POWER SUPPLY INTERNAL +10V POWER SUPPLY PIN NUMBERS IN ( ) ARE FOR SO PACKAGE. 8(13) 13(14) 12(10) 17 14(8) C1+ C1VVV+ GND 6 GND 9 C2+ C2+ C2C211 (12) 15 16 10 (11) 19 18 4 RS-232 INPUTS T1 T1OUT 5 RS-232 OUTPUTS
MAX202E-MAX213E, MAX232E/MAX241E
TOP VIEW
+5V
MAX203E
16 C215 C2+ 14 V+ (C1-) 13 C1- (C1+) 12 V- (C2+) 11 C2+ (C2-)
VCC 7 C1+ (V+) 8 GND 9 C2- (V-) 10
DIP/SO
______________________________________________________________________________________
15
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
0.1F +5V INPUT
TOP VIEW
12 VCC +5V 400k 8 T1IN +5V 400k 7 T2IN +5V 400k T4OUT T3OUT T1OUT T2OUT R2IN R2OUT T2IN T1IN R1OUT R1IN GND VCC 1 2 3 4 5 6 7 8 9 10 11 12 24 R3IN 23 R3OUT 22 T5IN 21 SHDN 20 EN 16 T4IN +5V 400k 22 T5IN 9 R1OUT T5 R1 T5OUT 19 R1IN 10 5k 15 T3IN 14 R5OUT 13 R5IN 6 R2OUT R2 R2IN 5 5k TTL/CMOS INPUTS 15 T3IN +5V 400k T4 T4OUT 1 T3 T3OUT 2 RS-232 OUTPUTS T2 T2OUT 4 T1 T1OUT 3
MAX205E
19 T5OUT 18 R4IN 17 R4OUT 16 T4IN
DIP
TTL/CMOS OUTPUTS 23 R3OUT R3 R3IN 24 5k 17 R4OUT R4IN 18 5k 14 R5OUT R5IN 13 5k 20 EN GND 11 21 RS-232 INPUTS
R4
R5
SHDN
16
______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
TOP VIEW
+5V INPUT 0.1F 9 VCC C1+ +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER +5V 400k T3OUT T1OUT T2OUT R1IN R1OUT T2IN T1IN GND VCC C1+ V+ C11 2 3 4 5 6 7 8 9 10 11 12 24 T4OUT 23 R2IN +5V 22 R2OUT 21 SHDN 20 EN TTL/CMOS INPUTS 6 T2IN +5V 400k 18 T3IN +5V 400k 19 T4IN 5 R1OUT T4 R1 T4OUT 24 R1IN 4 5k T3 T3OUT 1 400k T2 T2OUT 3 7 T1IN T1 T1OUT 2 V15 V+
0.1F 6.3V
10 0.1F 6.3V 0.1F 16V
11 0.1F 16V
12 C113 C2+ 14 C2-
MAX206E
19 T4IN 18 T3IN 17 R3OUT 16 R3IN 15 V14 C213 C2+
RS-232 OUTPUTS
DIP/SO/SSOP
TTL/CMOS OUTPUTS 22 R2OUT R2 R2IN 23 5k 17 R3OUT R3IN 16 5k RS-232 INPUTS
R3
20 EN GND 8
SHDN
21
______________________________________________________________________________________
17
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT 0.1F 9 VCC C1+ +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER +5V 400k 7 T1IN +5V 400k T3OUT T1OUT T2OUT R1IN R1OUT T2IN T1IN GND VCC C1+ V+ C11 2 3 4 5 6 7 8 9 10 11 12 24 T4OUT 23 R2IN 22 R2OUT 21 T5IN 20 T5OUT TTL/CMOS INPUTS 18 T3IN +5V 400k 19 T4IN +5V 400k 16 R3IN 15 V14 C213 C2+ 5 R1OUT 21 T5IN T5 R1 T5OUT 20 R1IN 4 5k 22 R2OUT T4 T4OUT 24 6 T2IN +5V 400k T3 T3OUT 1 RS-232 OUTPUTS T2 T2OUT 3 T1 T1OUT 2 V15 V+
TOP VIEW
0.1F 6.3V
10 0.1F 6.3V 0.1F 16V
11 0.1F 16V
12 C113 C2+ 14 C2-
MAX207E
19 T4IN 18 T3IN 17 R3OUT
DIP/SO/SSOP
TTL/CMOS OUTPUTS
R2
R2IN 23 5k
RS-232 INPUTS
17 R3OUT
R3
R3IN 16 5k
GND 8
18
______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
TOP VIEW
+5V INPUT 0.1F 9 VCC C1+ +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER +5V 400k 5 T1IN T2OUT T1OUT R2IN R2OUT T1IN R1OUT R1IN GND VCC C1+ V+ C11 2 3 4 5 6 7 8 9 10 11 12 24 T3OUT 23 R3IN 22 R3OUT 21 T4IN 20 T4OUT TTL/CMOS INPUTS +5V 400k 19 T3IN +5V 400k 21 T4IN 6 R1OUT T4 R1 T4OUT 20 R1IN 7 5k 4 R2OUT T3 T3OUT 24 +5V 400k 18 T2IN T2 T2OUT 1 RS-232 OUTPUTS T1 T1OUT 2 V15 V+ 0.1F 6.3V
10 0.1F 6.3V 0.1F 16V
11 0.1F 16V
12 C113 C2+ 14 C2-
MAX208E
19 T3IN 18 T2IN 17 R4OUT 16 R4IN 15 V14 C213 C2+
R2
R2IN 3 5k RS-232 INPUTS
DIP/SO/SSOP
TTL/CMOS OUTPUTS 22 R3OUT R3
R3IN 23 5k
17 R4OUT
R4
R4IN 16 5k
GND 8
______________________________________________________________________________________
19
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT 0.1F* 6.3V
TOP VIEW
0.1F 12 0.1F* 6.3V 0.1F* 16V C1+ 11 VCC +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER +5V 400k 7 T1IN +5V 400k T3OUT T1OUT T2OUT R2IN R2OUT T2IN T1IN R1OUT R1IN GND VCC C1+ V+ C11 2 3 4 5 6 7 8 9 10 11 12 13 14 28 T4OUT 27 R3IN 26 R3OUT 25 SHDN (SHDN) 24 EN (EN) TTL/CMOS INPUTS 6 T2IN +5V 400k 20 T3IN +5V 400k 21 T4IN 8 R1OUT T4 R1 T4OUT 28 R1IN 9 5k 19 R5OUT 18 R5IN 17 V16 C215 C2+ TTL/CMOS OUTPUTS 26 R3OUT R3 5 R2OUT R2 R2IN 4 5k R3IN 27 5k 22 R4OUT R4IN 23 5k 19 R5OUT ( ) ARE FOR MAX213E ONLY * 1.0F CAPACITORS, MAX241E ONLY 24 EN (EN) R5IN 18 5k 25 T3 T3OUT 1 T2 T2OUT 3 T1 T1OUT 2 V17 13
V+
14 C115 C2+ 16 C2-
0.1F* 16V
RS-232 OUTPUTS
MAX211E MAX213E MAX241E
23 R4IN 22 R4OUT 21 T4IN 20 T3IN
RS-232 INPUTS
SO/SSOP
R4
R5
SHDN (SHDN) GND 10
20
______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers
________________________________________________________Ordering Information
PART MAX202ECPE MAX202ECSE MAX202ECWE MAX202EC/D MAX202EEPE MAX202EESE MAX202EEWE MAX203ECPP MAX203ECWP MAX203EEPP MAX203EEWP MAX205ECPG MAX205EEPG MAX206ECNG MAX206ECWG MAX206ECAG MAX206EENG MAX206EEWG MAX206EEAG MAX207ECNG MAX207ECWG MAX207ECAG MAX207EENG MAX207EEWG MAX207EEAG TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C -40C to +85C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 16 Plastic DIP 16 Narrow SO 16 Wide SO Dice* 16 Plastic DIP 16 Narrow SO 16 Wide SO 20 Plastic DIP 20 SO 20 Plastic DIP 20 SO 24 Wide Plastic DIP 24 Wide Plastic DIP 24 Narrow Plastic DIP 24 SO 24 SSOP 24 Narrow Plastic DIP 24 SO 24 SSOP 24 Narrow Plastic DIP 24 SO 24 SSOP 24 Narrow Plastic DIP 24 SO 24 SSOP PART MAX208ECNG MAX208ECWG MAX208ECAG MAX208EENG MAX208EEWG MAX208EEAG MAX211ECWI MAX211ECAI MAX211EEWI MAX211EEAI MAX213ECWI MAX213ECAI MAX213EEWI MAX213EEAI MAX232ECPE MAX232ECSE MAX232ECWE MAX232EC/D MAX232EEPE MAX232EESE MAX232EEWE MAX241ECWI MAX241ECAI MAX241EEWI MAX241EEAI TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -40C to +85C -40C to +85C PIN-PACKAGE 24 Narrow Plastic DIP 24 SO 24 SSOP 24 Narrow Plastic DIP 24 SO 24 SSOP 28 SO 28 SSOP 28 SO 28 SSOP 28 SO 28 SSOP 28 SO 28 SSOP 16 Plastic DIP 16 Narrow SO 16 Wide SO Dice* 16 Plastic DIP 16 Narrow SO 16 Wide SO 28 SO 28 SSOP 28 SO 28 SSOP
MAX202E-MAX213E, MAX232E/MAX241E
*Dice are specified at TA = +25C.
______________________________________________________________________________________
21
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
__________________________________________________________Chip Topographies
MAX202E/MAX232E MAX211E/MAX213E/MAX241E
V+ C1+
V CC GND
T1OUT T4OUT R3IN T2OUT T3OUT
C1C2+ R2IN C2VT1OUT 0.117" (2.972mm) R1IN R2OUT T2IN T1IN R1OUT R1IN GND R1OUT T1IN
R3OUT SHDN (SHDN)
EN (EN) R4IN R4OUT T4IN T3IN R5OUT R5IN
0.174" (4.420mm)
R2IN T2OUT
T2IN R2OUT
V CC
C1+ V+
C1C2+
C2V-
0.080" (2.032mm)
0.188" (4.775mm)
( ) ARE FOR MAX213E ONLY
TRANSISTOR COUNT: 123 SUBSTRATE CONNECTED TO GND
TRANSISTOR COUNT: 542 SUBSTRATE CONNECTED TO GND
___________________Chip Information
MAX205E/MAX206E/MAX207E/MAX208E TRANSISTOR COUNT: 328 SUBSTRATE CONNECTED TO GND
22
______________________________________________________________________________________
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
________________________________________________________Package Information
E D A3 A A2 E1
DIM A A1 A2 A3 B B1 C D1 E E1 e eA eB L INCHES MAX MIN 0.200 - - 0.015 0.175 0.125 0.080 0.055 0.022 0.016 0.065 0.045 0.012 0.008 0.080 0.005 0.325 0.300 0.310 0.240 - 0.100 - 0.300 0.400 - 0.150 0.115 INCHES MIN MAX 0.348 0.390 0.735 0.765 0.745 0.765 0.885 0.915 1.015 1.045 1.14 1.265 MILLIMETERS MIN MAX - 5.08 0.38 - 3.18 4.45 1.40 2.03 0.41 0.56 1.14 1.65 0.20 0.30 0.13 2.03 7.62 8.26 6.10 7.87 2.54 - 7.62 - - 10.16 2.92 3.81 MILLIMETERS MIN MAX 8.84 9.91 18.67 19.43 18.92 19.43 22.48 23.24 25.78 26.54 28.96 32.13
21-0043A
L A1 e B D1
0 - 15 C B1 eA eB
Plastic DIP PLASTIC DUAL-IN-LINE PACKAGE (0.300 in.)
PKG. DIM PINS P P P P P N D D D D D D 8 14 16 18 20 24
DIM A A1 B C D E e H L
E
H
C
L
INCHES MILLIMETERS MAX MIN MIN MAX 0.078 0.068 1.73 1.99 0.008 0.002 0.05 0.21 0.015 0.010 0.25 0.38 0.008 0.004 0.09 0.20 SEE VARIATIONS 0.209 0.205 5.20 5.38 0.0256 BSC 0.65 BSC 0.311 0.301 7.65 7.90 0.037 0.025 0.63 0.95 8 0 0 8 INCHES MILLIMETERS MAX MIN MAX MIN 6.33 0.239 0.249 6.07 6.33 0.239 0.249 6.07 7.33 0.278 0.289 7.07 8.33 0.317 0.328 8.07 0.397 0.407 10.07 10.33
21-0056A
DIM PINS
e
A B D
A1
SSOP SHRINK SMALL-OUTLINE PACKAGE
D D D D D
14 16 20 24 28
______________________________________________________________________________________
23
15kV ESD-Protected, +5V RS-232 Transceivers MAX202E-MAX213E, MAX232E/MAX241E
___________________________________________Package Information (continued)
DIM INCHES MAX MIN 0.104 0.093 0.012 0.004 0.019 0.014 0.013 0.009 0.299 0.291 0.050 0.419 0.394 0.050 0.016 MILLIMETERS MIN MAX 2.35 2.65 0.10 0.30 0.35 0.49 0.23 0.32 7.40 7.60 1.27 10.00 10.65 0.40 1.27
D 0- 8 A e B
0.101mm 0.004in.
A1
C
L
A A1 B C E e H L
DIM PINS
E
H
Wide SO SMALL-OUTLINE PACKAGE (0.300 in.)
D D D D D
16 18 20 24 28
INCHES MIN MAX 0.398 0.413 0.447 0.463 0.496 0.512 0.598 0.614 0.697 0.713
MILLIMETERS MIN MAX 10.10 10.50 11.35 11.75 12.60 13.00 15.20 15.60 17.70 18.10
21-0042A
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
24 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 (c) 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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