SN75LP185A Datasheet | LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS





(Datasheet) SN75LP185A Datasheet PDF Download

Part Number SN75LP185A
Description LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS
Manufacture etcTI
Total Page 10 Pages
PDF Download Download SN75LP185A Datasheet PDF

Features: SN75LP185A LOW-POWER MULTIPLE RS-232 DRI VERS AND RECEIVERS D Single-Chip TIA/E IA-232-F Interface for IBM™ PC/AT™ Serial Port D Designed to Transmit and Receive 4-µs Pulses (Equivalent to 256 kbit/s) D Less Than 21-mW Power Consum ption D Wide Supply-Voltage Range, 4.75 V to 15 V D Driver Output Slew Rates A re Internally Controlled to 30 V/µs Ma x D Receiver Input Hysteresis, 1000 mV Typ D TIA/EIA-232-F Bus-Pin ESD Protect ion Exceeds: – 15-kV, Human-Body Mode l – 15-kV IEC1000-4-2, Air Gap – 8- kV IEC1000-4-2, Contact D Three Drivers and Five Receivers Meet or Exceed the Requirements of TIA/EIA-232-F and ITU V .28 D Complements the SN75LP196 D Desig ned to Replace the Industry-Standard SN 75185 and SN75C185 With the Same Flow-T hrough Pinout D Packaged in Plastic Sma ll-Outline Package SLLS257G – AUGUST 1996 – REVISED SEPTEMBER 1998 DW PAC KAGE (TOP VIEW) VDD RA1 RA2 RA3 DY1 DY 2 RA4 DY3 RA5 VSS 1 2 3 4 5 6 7 8 9 10 20 VCC 19 RY1 18 RY2 17 RY3 16 DA1 15 DA2 14 RY4 13 DA3 12 RY5 11 GND descri.

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SN75LP185A
LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS
D Single-Chip TIA/EIA-232-F Interface for
IBMPC/ATSerial Port
D Designed to Transmit and Receive 4-µs
Pulses (Equivalent to 256 kbit/s)
D Less Than 21-mW Power Consumption
D Wide Supply-Voltage Range, 4.75 V to 15 V
D Driver Output Slew Rates Are Internally
Controlled to 30 V/µs Max
D Receiver Input Hysteresis, 1000 mV Typ
D TIA/EIA-232-F Bus-Pin ESD Protection
Exceeds:
– 15-kV, Human-Body Model
– 15-kV IEC1000-4-2, Air Gap
– 8-kV IEC1000-4-2, Contact
D Three Drivers and Five Receivers Meet or
Exceed the Requirements of TIA/EIA-232-F
and ITU V.28
D Complements the SN75LP196
D Designed to Replace the Industry-Standard
SN75185 and SN75C185 With the Same
Flow-Through Pinout
D Packaged in Plastic Small-Outline Package
SLLS257G – AUGUST 1996 – REVISED SEPTEMBER 1998
DW PACKAGE
(TOP VIEW)
VDD
RA1
RA2
RA3
DY1
DY2
RA4
DY3
RA5
VSS
1
2
3
4
5
6
7
8
9
10
20 VCC
19 RY1
18 RY2
17 RY3
16 DA1
15 DA2
14 RY4
13 DA3
12 RY5
11 GND
description
The SN75LP185A is a low-power bipolar device containing three drivers and five 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
SN75185 and SN75C185. The flow-through pinout of the SN75LP185A allows easy interconnection of the
UART and serial-port connector of the IBM PC/AT and compatibles. The SN75LP185A provides a rugged,
low-cost solution for this function with the combination of the bipolar processing and 15 kV of ESD protection.
The SN75LP185A 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 nominally clamped 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 SN75LP185A complies with the requirements of TIA/EIA-232-F and ITU V.28. 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 SN75LP185A support rates up to 256 kbit/s.
The SN75LP185A 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.
IBM and PC/AT are trademarks of International Business Machines 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 © 1998, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1

                    
        






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