DS34C87TMX Datasheet, PDF (1/14 Pages) Texas Instruments – DS34C87T CMOS Quad TRI-STATE Differential Line Driver

DS34C87T
www.ti.com
SNLS376B – MAY 1998 – REVISED APRIL 2013
DS34C87T CMOS Quad TRI-STATE Differential Line Driver
Check for Samples: DS34C87T
FEATURES
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•2 TTL Input Compatible
• Typical Propagation Delays: 6 ns
• Typical Output Skew: 0.5 ns
• Outputs Won't Load Line When V_CC = 0V
• 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
DESCRIPTION
The DS34C87T is a quad differential line driver
designed for digital data transmission over balanced
lines. The DS34C87T meets all the requirements of
EIA standard RS-422 while retaining the low power
characteristics of CMOS. This enables the
construction of serial and terminal interfaces while
maintaining minimal power consumption.
The DS34C87T accepts TTL or CMOS input levels
and translates these to RS-422 output levels. This
part uses special output circuitry that enables the
individual drivers to power down without loading down
the bus. This device has separate enable circuitry for
each pair of the four drivers. The DS34C87T is pin
compatible to the DS3487T.
All inputs are protected against damage due to
electrostatic discharge by diodes to V_CC and ground.
Connection and Logic Diagrams
Top View
Figure 2. Logic Diagram
See PIN DESCRIPTIONS for details.
Figure 1. PDIP Package
See Package Numbers D0016A or NFG0016E
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PRODUCTION DATA information is current as of publication date.
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Instruments standard warranty. Production processing does not
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