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DATA SHEET
MOS INTEGRATED CIRCUIT
PD4722
RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V
The PD4722 is a high-breakdown voltage silicon gate CMOS line driver/receiver based on the EIA/TIA-232-E standard. The internal DC/DC converter can switch between multiple voltages, allowing it to operate with a single +3.3 V or +5 V power supply. It also provides standby function. This IC incorporates 4 driver circuits and 4 receiver circuits. An RS-232 interface circuit can be easily configured by connecting 5 capacitors externally.
FEATURES
* Conforms to EIA/TIA-232-E (former name, RS-232C) standards * Selectable +3.3 V/+5 V single power supply (selected by VCHA pin) * By setting the standby pin to a low level (standby mode), circuit current can be reduced. At such times, the driver output is in a high-impedance state. * Even in the standby mode, 2 receiver circuits can operate as inverters without hysteresis width. The other 2 circuits are fixed at a high level.
ORDERING INFORMATION
Part number Package 30-pin plastic SSOP (300 mil)
PD4722GS-GJG
Document No. S12199EJ3V0DS00 (3rd edition) (Previous No. IC-3280) Date Published January 1997 N Printed in Japan
(c)
1993
PD4722
BLOCK DIAGRAM/PIN CONFIGURATION (TOP VIEW)
+10 V C3 + +
1
VDD
C4+ 30 + C4
2 +3.3 V or +5 V C1
C1+
GND 29 + C2 C4- 28
3
VCC
4
C1- C5+
VSS 27
-10 V
5 C5 + 6
26 STBY
GND C5- Note 4 300
25 VCHA
7
24 EN
DIN1
8 300
23 DOUT1
DIN2
9 300
22 DOUT2
DIN3 10 300 DIN4 11
21 DOUT3
20 DOUT4
ROUT1 12 5.5 k ROUT2 13 5.5 k ROUT3 14 5.5 k ROUT4 15 5.5 k
19 RIN1
18 RIN2
17 RIN3
16 RIN4
Note
1. VDD and VSS are output pins stepped up internally. These pins should not be loaded directly. 2. Capacitors C1 to C5 with a breakdown voltage of 20 V or higher are recommended. And it is recommended to insert the capacitor that is 0.1 F to 1 F between VCC and GND. 3. If VCHA is kept low level (in 5 V mode), capacitor C5 is not necessary. 4. The pull-up resistors at driver input are active resistors.
2
PD4722
Truth Table Driver
STBY L H H
DIN x L H
DOUT Z H L
Remarks Standby mode (DC/DC converter is stopped) Space level output Mark level output
Receiver
RIN STBY L L EN R3 to R4 L H x L R1 to R2 x x x L H
ROUT Remarks R3 to R4 H H R1 to R2 H H Standby mode 1 (DC/DC converter is stopped) Standby mode 2 (DC/DC converter is stopped, R3 and R4 are operated) Standby mode 2 (DC/DC converter is stopped, R3 and R4 are operated) Mark level input Space level input
L H H
H x x
H
L H L
H
3 V 5 V switchingNote 5
VCHA L H Operating mode 5 V mode (double step-up) 3 V mode (3 times step-up)
H: high-level, L: low-level, Z: high-impedance, x: H or L Note 5. When switching VCHA, standby mode must be selected (STBY = L).
3
PD4722
ABSOLUTE MAXIMUM RATINGS (TA = 25 C)
Parameter Supply Voltage (VCHA = L) Supply Voltage (VCHA = H) Driver Input Voltage Receiver Input Voltage Control Input Voltage (STBY, VCHA, EN) Driver Output Voltage Receiver Output Voltage Input Current (DIN, STBY, VCHA, EN) Operating Ambient Temperature Storage Temperature Total Power Dissipation Symbol VCC VCC DIN RIN VIN DOUT ROUT IIN TA Tstg PT Ratings -0.5 to +7.0 -0.5 to +4.5 -0.5 to VCC +0.5 -30.0 to +30.0 -0.5 to VCC +0.5 -25.0 to +25.0 Note 6 -0.5 to VCC +0.5 20.0 -40 to +85 -55 to + 150 0.5 Unit V V V V V V V mA C C W
Note 6. Pulse width = 1 ms, duty = 10 % MAX. RECOMMENDED OPERATING CONDITIONS
Parameter Supply Voltage (VCHA = L, 5 V mode) Supply Voltage (VCHA = H, 3 V mode) High-Level Input Voltage (DIN) Low-Level Input Voltage (DIN) High-Level Input Voltage (STBY, VCHA, EN) Low-Level Input Voltage (STBY, VCHA, EN) Receiver Input Voltage Operating Ambient Temperature Capacitance of External Capacitor
Symbol VCC VCC VIH VIL VIH VIL RIN TA
Note 7
MIN. 4.5 3.0 2.0 0 2.4 0 -30 -40 0.47
TYP. 5.0 3.3
MAX. 5.5 3.6 VCC 0.8 VCC 0.6 +30 +85 4.7
Unit V V V V V V V C
F
Note 7. In low temperature (below 0 C), the capacitance of electrolytic capacitor becomes lower. Therefore, set higher values when using in low temperature. Concerning the wiring length between the capacitor and the IC, the shorter the better. Capacitors with good frequency characteristics such as tantalum capacitors, laminated ceramic capacitors, and aluminum electrolytic capacitors for switching power supply are recommended for the external capacitors.
4
PD4722
ELECTRICAL SPECIFICATIONS (TOTAL) (UNLESS OTHERWISE SPECIFIED, TA = -40 to +85 C, C1 to C5 = 1 F)
Parameter Symbol Conditions VCC = +3.3 V, No load, RIN pin OPEN, STBY = H VCC = +5.0 V, No load, RIN pin OPEN, STBY = H VCC = +3.3 V, RL = 3 k (DOUT), DIN = GND, RIN, ROUT pin OPEN, STBY = H VCC = +5.0 V,RL = 3 k (DOUT), DIN = GND, RIN, ROUT pin OPEN, STBY = H VCC = +3.3 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = L, TA = 25 C Circuit Current at Standby (Standby Mode 1) VCC = +3.3 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = L VCC = +5.0 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = L, TA = 25 C VCC = +5.0 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = L VCC = +3.3 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = H, TA = 25 C VCC = +3.3 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = H VCC = +5.0 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = H, TA = 25 C VCC = +5.0 V, No load, DIN and RIN pins are OPEN, STBY = L, EN = H High-Level Input Voltage Low-Level Input Voltage High-Level Input Current Low-Level Input Current VIH VIL IIH IIL VCC = +3.0 to +5.5 V, STBY, VCHA, EN pin VCC = +3.0 to +5.5 V, STBY, VCHA, EN pin VCC = +5.5 V, VI = 5.5 V, STBY, VCHA, EN pin VCC = +5.5 V, VI = 0 V, STBY, VCHA, EN pin Driver input and receiver input VCC = +3.3 V, for GND, f = 1 MHz Input Capacitance CIN Driver input and receiver input VCC = +5.0 V, for GND, f = 1 MHz STBY -- VCHA Time VCHA -- STBY Time STBY -- VCC Time VCC -- STBY Time tSCH tCHS tSC tCS VCC = +3.0 to 5.5 V, STBY VCHA, Note 8 VCC = +3.0 to 5.5 V, VCHA STBY , VCC = +3.0 to 5.5 V, STBY VCC, VCC = +3.0 to 5.5 V, VCC STBY ,
Note 8
MIN.
TYP.
MAX. 16 12 47 38
Unit mA mA mA mA
Circuit Current
ICC1
Circuit Current
ICC2
1 5 2 10 1 5 2 10 2.4
3
A A
ICC3
5
A A
3
A A
Circuit Current at Standby (Standby Mode 2)
ICC4
5
A A
V
0.6 1 -1 10 10 1 1 1 1
V
A A
pF pF
s s s s
Note 8 Note 8
* The TYP. values are for reference at TA = 25 C.
5
PD4722
Note 8. Measuring point
5V STBY 0.6 V 0V tSCH 3.3 V 2.4 V VCHA 0V 5V VCC 3.3 V 4.5 V 3.6 V tSC 0.6 V tCS tCHS
3.3 V 0.6 V 0.6 V 0.6 V
tSCH
tCHS
2.4 V 0.6 V tSC tCS
4.5 V 3.6 V
ELECTRICAL SPECIFICATIONS (DRIVER) (UNLESS OTHERWISE SPECIFIED, TA = -40 to +85 C, C1 to C5 = 1 F) 3 V mode (unless otherwise specified, VCHA = H, VCC = 3.0 to 3.6 V)
Parameter Low-Level Input Voltage High-Level Input Voltage Low-Level Input Current High-Level Input Current
Symbol VIL VIH IIL IIH
Conditions
MIN.
TYP.
MAX. 0.8
Unit V V
2.0 VCC = +3.6 V, VI = 0 V VCC = +3.6 V, VI = 3.6 V VCC = +3.3 V, RL = , TA = 25 C 9.5 5.0 5.0 40 3.0 3.0 2.5 30 30 6.0 -25 1.0
A A
V V V mA V/s V/s
Output Voltage
VDO
VCC = +3.3 V, RL = 3 k, TA = Topt VCC = +3.0 V, RL = 3 k, TA = +25 C
Output Short-Circuit Current Slew-Rate Note 9
ISC SR
VCC = +3.3 V, for GND CL = 10 pF, RL = 3 to 7 k CL = 2 500 pF, RL = 3 to 7 k
Propagation Delay Time Note 9
tPHL tPLH RO tDAZ tDZA tPRA
RL = 3 k, CL = 2 500 pF VCC = VDD = VSS = 0 V VOUT = 2 V RL = 3 k, CL = 2 500 pF, Note 10 RL = 3 k, CL = 2 500 pF, Note 10 RL = 3 k, CL = 2 500 pF, Note 11
s
Output Resistor Standby Output Transfer Time Standby Output Transfer Time Power-On Output Transfer Time
300 4 1 1 10 3 3
s
ms ms
* The TYP. values are for reference at TA = 25 C.
6
PD4722
5 V mode (unless otherwise specified, VCHA = L, VCC = +5.0 V 10 %)
Parameter Low-Level Input Voltage High-Level Input Voltage Low-Level Input Current High-Level Input Current Symbol VIL VIH IIL IIH VCC = +5.5 V, VI = 0 V VCC = +5.5 V, VI = 5.5 V VCC = +5.0 V, RL = , TA = 25 C Output Voltage VDO VCC = +5.0 V, RL = 3 k, TA = Topt VCC = +4.5 V, RL = 3 k, TA = Topt Output Short-Circuit Current Slew-Rate Note 9 ISC SR CL = 2 500 pF, RL = 3 to 7 k Propagation Delay Time Note 9 tPHL tPLH RO tDAZ tDZA tPRA RL = 3 k, CL = 2 500 pF VCC = VDD = VSS = 0 V VOUT = 2 V RL = 3 k, CL = 2 500 pF, Note 10 RL = 3 k, CL = 2 500 pF, Note 10 RL = 3 k, CL = 2 500 pF, Note 12 4.0 2 30 V/s VCC = +5.0 V, for GND CL = 10 pF, RL = 3 to 7 k 4.0 6.0 5.0 40 30 9.7 2.0 -40 1.0 Conditions MIN. TYP. MAX. 0.8 Unit V V
A A
V V V mA V/s
s
Output Resistor Standby Output Transfer Time Standby Output Transfer Time Power-On Output Transfer Time
300 4 0.5 0.5 10 1 1
s
ms ms
* The TYP. values are for reference at TA = 25 C. Note 9. Measuring point
VCC DIN 0.8 V 0V tPLH VDO+ DOUT VDO- SR+ SR- tPHL 2.0 V
+5 V +3 V -3 V
+3 V -3 V -5 V
7
PD4722
Note 10. Measuring point
VCC STBY 0.6 V 0V tDAZ VDO+ +5 V DOUT -5 V VDO- High-impedance +5 V -5 V tDZA 2.4 V
Driver outputs are indefinite during transition time (tDZA).
Note 11. Measuring point
3.3 V 3.0 V VCC 0V tPRA VDO+ DOUT VDO- High-impedance +5 V -5 V
Driver outputs are indefinite during transition time (tPRA).
Note 12. Measuring point
5V 4.5 V VCC 0V tPRA VDO+ DOUT VDO- High-impedance +5 V -5 V
Driver outputs are indefinite during transition time (tPRA).
8
PD4722
ELECTRICAL SPECIFICATIONS (RECEIVER) (UNLESS OTHERWISE SPECIFIED, VCC = 3.0 to 5.5 V, TA = -40 to +85 C, C1 to C5 = 1 F)
Parameter Low-Level Output Voltage High-Level Output Voltage Low-Level Output Voltage High-Level Output Voltage Propagation Delay Time (STBY = H) Propagation Delay Time (STBY = L) Propagation Delay Time (STBY = L) Input Resistor Input Pin Open Voltage Symbol VOL1 VOH1 VOL2 VOH2 tPHL tPLH tPHL tPLH tPHA tPAH RI VIO VIH Input Threshold (STBY = H) VIL VH Input Threshold (STBY = L, EN = H) Standby Output Transfer Time Standby Output Transfer Time VIH VIL tDAH tDHA VCHA = L (5 V mode)Note 16 VCHA = H (3 V mode) Note 17 Power-On Reset Release Time tPRA VCHA = L (5 V mode)Note 18 0.5 1 ms 0.3 1 1 3 ms ms VCC = +3.0 to +5.5 V VCC = +3.0 to +5.5 V VCC = +3.0 to +5.5 V (Hysteresis width) VCC = +3.0 to +5.5 V, RIN3, RIN4 VCC = +3.0 to +5.5 V, RIN3, RIN4
Note 16
Conditions IOUT = 4 mA, STBY = H IOUT = -4 mA, STBY = H IOUT = 4 mA, STBY = L IOUT = -4 mA, STBY = L RIN ROUT, CL = 150 pF VCC = +3.0 V, Note 13 RIN ROUT, CL = 150 pF VCC = +3.0 V, Note 14 EN ROUT, CL = 150 pF VCC = +3.0 V, Note 15
MIN.
TYP.
MAX. 0.4
Unit V V
VCC - 0.4 0.5 VCC - 0.5 0.2
V V
s s
300 7 0.5 ns k V V V V V 0.7 3 3 V
0.1
100 3 5.5
1.7 0.7 0.5 2.7
2.3 1.1 1.2 1.5 1.5 0.2 0.6
2.7 1.7 1.8
s
ms
VCHA = H (3 V mode) Note 16
* The TYP. values are for reference at TA = 25 C.
9
PD4722
Note 13. Measuring point
+3 V RIN 0V -3 V tPLH VOH ROUT VOL 2.0 V 0.8 V tPHL 0.7 V 2.7 V
Note 14. Measuring point
+3 V RIN 0V -3 V tPLH VOH ROUT VOL 2.0 V 0.8 V tPHL 0.7 V 2.7 V
Note 15. Measuring point
VCC EN 0V tPHA VOH ROUT VOL STBY = L 0.8 V 2.0 V tPAH 2.4 V 0.6 V
10
PD4722
Note 16. Measuring point
VCC STBY 0.6 V 0V tDAH VOH ROUT VOL 2.0 V 0.8 V tDHA
2.4 V
Receiver outputs are indefinite during transition time (tDHA). Note 17. Measuring point
3.3 V 3.0 V VCC 0V tPRA VOH ROUT 0.8 V VOL
Receiver outputs are indefinite during reset release time (tPRA). Note 18. Measuring point
5V 4.5 V VCC 0V tPRA VOH ROUT 0.8 V VOL
Receiver outputs are indefinite during reset release time (tPRA). REFERENCE MATERIAL * IC PACKAGE MANUAL (C10943X) * NEC SEMICONDUCTOR DEVICE RELIABILITY/QUALITY (IEI-1212)
11
PD4722
RECOMMENDED SOLDERING CONDITIONS
The following conditions (See table below) must be met when soldering this product. Please consult with our sales offices in case other soldering process is used, or in case soldering is done under different conditions. TYPES OF SURFACE MOUNT DEVICE For more details, refer to our document "SMT MANUAL" (C10535E).
PD4722 GS-GJG
Soldering process Infrared ray reflow Soldering conditions Peak package's surface temperature: 230 C or below, Reflow time: 30 seconds or below (210 C or higher), Number of reflow process: 2, Exposure limit*: None Peak package's surface temperature: 215 C or below, Reflow time: 40 seconds or below (200 C or higher), Number of reflow process: 2, Exposure limit*: None Solder temperature: 260 C or below, Flow time: 10 seconds or below, Number of flow process: 1, Exposure limit*: None Terminal temperature: 300 C or below, Flow time: 10 seconds or below, Exposure limit*: None Symbol IR30-00-2
VPS
VP15-00-2
Wave soldering
WS60-00-1
Partial heating method
* Exposure limit before soldering after dry-pack package is opened. Storage conditions: 25 C and relative humidity at 65 % or less. Note Do not apply more than a single process at once, except for "Partial heating method"
12
PD4722
PACKAGE DRAWINGS 30 PIN PLASTIC SHRINK SOP (300 mil)
30 16 detail of lead end
1 A
15 H I J
F
G
E
K
C D MM
N
B
L P30GS-65-300B-1 ITEM A B C D E F G H I J K L M N MILLIMETERS 10.11 MAX. 0.51 MAX. 0.65 (T.P.) 0.30+0.10 -0.05 0.125 0.075 2.0 MAX. 1.7 0.1 8.1 0.2 6.1 0.2 1.0 0.2 0.15+0.10 -0.05 0.5 0.2 0.10 0.10 INCHES 0.398 MAX. 0.020 MAX. 0.026 (T.P.) 0.012+0.004 -0.003 0.005 0.003 0.079 MAX. 0.067 0.004 0.319 0.008 0.240 0.008 0.039+0.009 -0.008 0.006+0.004 -0.002 0.020+0.008 -0.009 0.004 0.004
NOTE Each lead centerline is located within 0.10 mm (0.004 inch) of its true position (T.P.) at maximum material condition.
3 +7 -3
13
PD4722
[MEMO]
14
PD4722
[MEMO]
15
PD4722
No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance. Anti-radioactive design is not implemented in this product.
M4 96.5
16

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