54ACTQ657 Datasheet, PDF (1/10 Pages) National Semiconductor (TI) – Quiet Series Octal Bidirectional Transceiver with 8-Bit Parity Generator/Checker and TRI-STATE Outputs

September 1998
54ACTQ657
Quiet Series Octal Bidirectional Transceiver with 8-Bit
Parity Generator/Checker and TRI-STATE^® Outputs
General Description
The ACTQ657 contains eight non-inverting buffers with
TRI-STATE outputs and an 8-bit parity generator/checker. In-
tended for bus oriented applications, the device combines
the ’245 and the ’280 functions in one package.
The ACTQ utilizes NSC Quiet Series technology to guaran-
tee quiet output switching and improved dynamic threshold
performance. FACT Quiet Series™ features GTO™ output
control and undershoot corrector in addition to a split ground
bus for superior performance.
Features
n Guaranteed simultaneous switching noise level and
dynamic threshold performance
n Combines the ’245 and the ’280 functions in one
package
n Outputs source/sink 24 mA
n ’ACTQ has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
5962-92197
Logic Symbols
IEEE/IEC
DS100244-1
DS100244-4
GTO™ is a trademark of National Semiconductor Corporation.
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
FACT Quiet Series™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100244
www.national.com