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DS14C89A Quad CMOS Receiver
May 1998
DS14C89A Quad CMOS Receiver
General Description
The DS14C89A, pin-for-pin compatible to the DS1489A/ MC1489A, ia a quad receiver designed to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). These devices translate levels conforming to EIA-232E and CCITT V.28 standards to TTL/CMOS logic levels. The device is fabricated in low threshold CMOS metal gate technology. The device provides very low power consumption compared to their bipolar equivalents: 900 A (DS14C89A) versus 26 mA (DS1489A). The DS14C89A provides on chip noise filtering which eliminates the need for external response control filter capacitors. When replacing the DS1489A with the DS14C89A, the response control filter pins can be tied high, low, or not connected.
Features
n n n n n Meets EIA/TIA-232-E and CCITT V.28 Standards Failsafe - Output High for Open Input LOW Power consumption On chip noise filter Available in SOIC Package
Connection Diagram
DS011106-1
Order Number DS14C89AN, DS14C89AM, See NS Package Number M14A, N14A
(c) 1998 National Semiconductor Corporation
DS011106
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. +6V -30V to +30V (VCC) +0.3V to GND-0.3V Junction Temperature +150C Continuous Power Dissipation @ +25C (Note 2) N Package 1513 mW M Package 1063 mW Lead Temp. VCC Input Voltage Receiver Output Voltage
(Soldering 4 seconds) Storage Temp. Range ESD Rating 1.8 kV, Typically 2 kV (HMB, 1.5 k, 100 pF)
+260C -65C to +150C
Recommended Operating Conditions
Min +4.5 VCC (GND = 0V) Operating Free Air Temp. (TA) DS14C89A 0 Max +5.5 +75 Units V C
Electrical Characteristics
Over recommended operating conditions, unless otherwise specified Symbol VTH VTL VHY IIN Parameter Input High Threshold Input Low Threshold Typical Input Hysteresis Input Current VIN = +25V VIN = -25V VIN = +3V VIN = -3V VIN = +15V VIN = -15V VIN = +3V VIN = -3V VIN = VTL (min) VIN = VTH (max) IOUT = +3.2 mA No Load, VIN = 2.7V or 0.5V VCC = +4.5V to +5.5V 3.6 -3.6 0.43 -0.43 VCC = 0V (Power-Off) (Note 4) 2.14 -2.14 0.43 -0.43 IOUT = -3.2 mA IOUT = -20A VOL Output Low Voltage 2.8 3.5 4.0 4.7 Conditions Min 1.3 0.5 1.0 8.3 -8.3 1.0 -1.0 5.0 -5.0 1.0 -1.0 Typ Max 2.7 1.9 Units V V V mA mA mA mA mA mA mA mA V V
VOH
Output High Voltage
0.15
0.4
V
ICC
Supply Current
0.5
900
A
AC Electrical Characteristics
Symbol tPLH tPHL tSK tr tf tnw Parameter Propagation Delay Low to High Propagation Delay High to Low Typical Propagation Delay Skew Output Rise TIme Output Fall Time Pulse Width assumed to be Noise
(Note 3) Over recommended operating conditions, unless otherwise specified, CI = 50 pF ConditIons Input Pulse Width 10 s Input Pulse Width 10 s Min Typ 3.5 3.2 400 40 40 300 300 1.0 Max 6.5 6.5 Units s s ns ns ns s
Note 1: "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of "Electrical Characteristics" specify conditions for device operation. Note 2: Derate N Package 12.1 mW/C, and M Package 8.5 mW/C above +25C. Note 3: AC input waveforms for test purposes: tr = tf = 200 ns, VIH = +3V, VL = -3V, f = 20 KHz. Note 4: Under the power-off supply conditions it is assumed that the power supply potential drops to zero (0V) and is replaced by a low impedance or short circuit to ground.
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Parameter Measurement Information
DS011106-2
FIGURE 1. Receiver Load Circuit
DS011106-3
FIGURE 2. Receiver Switching Waveform (Note 3)
Typical Application Information
DS011106-4
FIGURE 3. Receiver Block Diagram
DS011106-5
FIGURE 4. EIA-232D Data Transmission
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4
Physical Dimensions
inches (millimeters) unless otherwise noted
Order Number DS14C89AM NS Package Number M14A
Order Number DS14C89AN NS Package Number N14A
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DS14C89A Quad CMOS Receiver
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

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