March 1993
54ACTQ 74ACTQ16244
16-Bit Buffer Line Driver
with TRI-STATE Outputs
General Description
The ’ACTQ16244 contains sixteen non-inverting buffers
with TRI-STATE outputs designed to be employed as a
memory and address driver clock driver or bus oriented
transmitter receiver The device is nibble controlled Each
nibble has separate TRI-STATE control inputs which can be
shorted together for full 16-bit operation
The ’ACTQ16244 utilizes NSC Quiet Series technology to
guarantee quiet output switching and improved dynamic
threshold performance FACT Quiet SeriesTM features
GTOTM output control for superior performance
Features
Y Utilizes NSC FACT Quiet Series technology
Y Guaranteed simultaneous switching noise level and
dynamic threshold performance
Y Guaranteed pin-to-pin output skew
Y Separate control logic for each byte and nibble
Y 16-bit version of the ’ACTQ244
Y Outputs source sink 24 mA
Y Additional specs for multiple output switching
Y Output loading specs for both 50 pF and 250 pF loads
Logic Symbol
Connection Diagram
Pin Assignment for
SSOP and CERPAK
TL F 10925 – 1
Pin Description
Pin Names
Description
OEn
I0 – I15
O0 – O15
Output Enable Input (Active Low)
Inputs
Outputs
TRI-STATE is a registered trademark of National Semiconductor Corporation
FACTTM FACT Quiet SeriesTM and GTOTM are trademarks of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 10925
TL F 10925 – 2
RRD-B30M75 Printed in U S A
