SNLS375B – JUNE 1998 – REVISED APRIL 2013
DS26C31T/DS26C31M CMOS Quad TRI-STATE
®
Differential Line Driver
Check for Samples:
1
FEATURES
TTL Input Compatible
Typical Propagation Delays: 6 ns
Typical Output Skew: 0.5 ns
Outputs Will Not Load Line when V
CC
= 0V
DS26C31T Meets the Requirements of EIA
Standard RS-422
Operation from Single 5V Supply
TRI-STATE Outputs for Connection to System
Buses
Low Quiescent Current
Available in Surface Mount
Mil-Std-883C Compliant
DESCRIPTION
The DS26C31 is a quad differential line driver
designed for digital data transmission over balanced
lines. The DS26C31T meets all the requirements of
EIA standard RS-422 while retaining the low power
characteristics of CMOS. The DS26C31M is
compatible with EIA standard RS-422; however, one
exception in test methodology is taken
(1)
. This
enables the construction of serial and terminal
interfaces
while
maintaining
minimal
power
consumption.
The DS26C31 accepts TTL or CMOS input levels and
translates these to RS-422 output levels. This part
uses special output circuitry that enables the drivers
to power down without loading down the bus. This
device has enable and disable circuitry common to all
four drivers. The DS26C31 is pin compatible to the
AM26LS31 and the DS26LS31.
All inputs are protected against damage due to
electrostatic discharge by diodes to V
CC
and ground.
(1)
The DS26C31M (−55°C to +125°C) is tested with V
OUT
between +6V and 0V while RS-422A condition is +6V and
−0.25V.
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Connection Diagrams
Figure 1. Dual-In-Line Package, Top View
See Package Number D0016A or NFG0016E
For Complete Military Product Specifications,
refer to the appropriate SMD or MDS.
See Package Number NAJ0020A, NFE0016A or NAD0016A
1
2
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TRI-STATE is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Copyright © 1998–2013, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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