TECHNICAL DATA
CMOS Quad TRISTATE Differential Line Driver
IL34C87
General Description
The IL34C87T is a quad differential line driver
designed for digital data transmission over balanced lines.
The IL34C87T 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 IL34C87T 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. All inputs are protected against
damage due to electrostatic discharge by diodes to VDD
and ground.
IL34C87N Plastic DIP
IL34C87D SOIC
TA = -40° ÷ 85°C
for all packages
Features
• TTL input compatible
• Typical propagation delays: 6 ns
• Typical output skew: 0.5 ns
• Outputs won’t load line when VDD = 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
Pin Configuration
1
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