SN75LP196 Datasheet, PDF (1/8 Pages) Texas Instruments – LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS

SN75LP196
LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS
D Single-Chip RS-232 Interface for an
External Modem or Other Computer
Peripheral Serial Port
D Designed to Transmit and Receive 4-µs
Pulses (Equivalent to 256 kbit/s)
D Wide Driver Supply-Voltage Range:
4.75 V to 15 V
D Driver Output Slew Rates Are Controlled
Internally to 30 V/µs Maximum
D Receiver Input Hysteresis . . . 1000 mV
Typical
D RS-232 Bus-Pin ESD Protection Exceeds
15 kV Using Human-Body Model (HBM)
D Five Drivers and Three Receivers Meet or
Exceed the Requirements of TIA/EIA-232-F
and ITU v.28 Standards
D Complements the SN75LP1185
D Designed to Replace the Industry-Standard
SN75196 With the Same Flow-Through
Pinout
D Package Options Include Plastic Small
Outline (DW), Shrink Small-Outline (DB),
Thin Shrink Small-Outline (PW), and
Dual-in-Line (N) Packages
SLLS294A – APRIL 1998 – REVISED JUNE 1999
DB, DW, N, OR PW PACKAGE
(TOP VIEW)
V_CC 1
DA1 2
DA2 3
DA3 4
RY1 5
RY2 6
DA4 7
RY3 8
DA5 9
GND 10
20 V_DD
19 DY1
18 DY2
17 DY3
16 RA1
15 RA2
14 DY4
13 RA3
12 DY5
11 V_SS
description
The SN75LP196 is a low-power bipolar device containing five drivers and three receivers, with 15 kV of ESD
protection on the bus pins with respect to each other. Bus pins are defined as those pins that tie directly to the
serial-port connector, including GND. The pinout matches the flow-through design of the industry-standard
SN75196 and allows easy interconnection of the UART and serial-port connector of the IBM PC/AT and
compatibles. This device provides a rugged, low-cost solution for this function with the combination of bipolar
processing and 15-kV ESD protection.
The SN75LP196 has internal slew-rate control to provide a maximum rate of change in the output signal of
30 V/µs. The driver output swing is clamped nominally at ±6 V to enable the higher data rates associated with
this device and to reduce EMI emissions. Even though the driver outputs are clamped, they can handle voltages
up to ±15 V without damage. All the logic inputs can accept 3.3-V or 5-V input signals.
The SN75LP196 complies with the requirements of the TIA/EIA-232-F and the ITU v.28 standards. These
standards are for data interchange between a host computer and peripheral at signaling rates up to 20 kbit/s.
The switching speeds of the SN75LP196 support rates up to 256 kbit/s with lower capacitive loads (shorter
cables).
The SN75LP196 is characterized for operation from 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PC/AT is a trademark of IBM Corporation.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
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