March 1993
54ACTQ 74ACTQ16374
16-Bit D Flip-Flop with TRI-STATE Outputs
General Description
The ’ACTQ16374 contains sixteen non-inverting D flip-flops
with TRI-STATE outputs and is intended for bus oriented
applications The device is byte controlled A buffered clock
(CP) and Output Enable (OE) are common to each byte and
can be shorted together for full 16-bit operation
The ’ACTQ16245 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 Buffered Positive edge-triggered clock
Y Separate control logic for each byte
Y 16-bit version of the ’ACTQ374
Y Outputs source sink 24 mA
Y Additional specs for Multiple Output Switching
Y Output loadings specs for both 50 pF and 250 pF loads
Logic Symbol
Connection Diagram
Pin Assignment for
SSOP and CERPAK
TL F 10935 – 1
Pin Description
Pin
Names
OEn
CPn
I0 – I15
O0 – O15
Description
Output Enable Input (Active Low)
Clock Pulse Input
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 10935
TL F 10935 – 2
RRD-B30M75 Printed in U S A
