54AC821 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – 10-Bit D Flip-Flop with TRI-STATE Outputs

August 1998
54AC821 • 54ACT821
10-Bit D Flip-Flop with TRI-STATE^® Outputs
General Description
The ’AC/’ACT821 is a 10-bit D flip-flop with TRI-STATE out-
puts arranged in a broadside pinout.
The ’AC/’ACT821 is functionally identical to the AM29821.
Features
n TRI-STATE outputs for bus interfacing
n Noninverting outputs
n Outputs source/sink 24 mA
n ’ACT821 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’ACT821: 5962-88705
— ’AC821: 5962-91606
Logic Symbols
Connection Diagrams
Pin Assignment
for DIP and Flatpak
IEEE/IEC
DS100355-1
Pin Names
D₀– D₉
O₀– O₉
OE
CP
DS100355-2
Description
Data Inputs
Data Outputs
Output Enable Input
Clock Input
DS100355-3
Pin Assignment for LCC
DS100355-4
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
FACT^® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100355
www.national.com