•2 Meets or Exceeds the Requirements of IBM®
360/370 Input/Output Interface Specification
for 4.5-Mb/s Operation
• Single 5-V Supply
• Uncommitted Emitter-Follower Output
Structure for Party-Line Operation
• Driver Output Short-Circuit Protection
• Driver Input/Receiver Output Compatible With
• Receiver Input Resistance . . . 7.4 kΩ to 20 kΩ
• Ratio Specification for Propagation Delay
Time, Low to High/High to Low
The SN751730 triple line driver/receiver is specifically
designed to meet the input/output interface
specifications for IBM System 360/370. It also is
compatible with standard TTL logic and supply
The low-impedance emitter-follower driver outputs of
the SN751730 drive terminated lines, such as coaxial
cable or twisted pair. Having the outputs uncommitted
allows wired-OR logic to be performed in party-line
applications. Output short-circuit protection is
provided by an internal clamping network that turns
on when the output voltage drops below
approximately 2.5 V.
An open line affects the receiver input as does a
low-level input voltage.
All the driver inputs and receiver outputs are in
conventional TTL configuration and the gating can be
used during power-up and power-down sequences to
ensure that no noise is introduced to the line by
pulling either DE1 or DE2 to a low level.
TRIPLE LINE DRIVER/RECEIVER
SLLS062E – MAY 1990 – REVISED AUGUST 2007
D OR N PACKAGE
N.C. – No internal connection
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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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