TL/F/9965
54ACT/74ACT534
Octal
D
Flip-Flop
with
TRI-STATE
Outputs
March 1993
54ACT/74ACT534
Octal D Flip-Flop with TRI-STATE Outputs
General Description
The ’ACT534 is a high-speed, low-power octal D-type flip-
flop featuring separate D-type inputs for each flip-flop and
TRI-STATE outputs for bus-oriented applications. A buff-
ered Clock (CP) and Output Enable (OE) are common to all
flip-flops. The ’ACT534 is the same as the ’ACT374 except
that the outputs are inverted.
Features
Y
I
CC
and I
OZ
reduced by 50%
Y
Edge-triggered D-type inputs
Y
Buffered positive edge-triggered clock
Y
TRI-STATE outputs for bus-oriented applications
Y
Outputs source/sink 24 mA
Y
’ACT534 has TTL-compatible inputs
Y
Inverted output version of ’ACT374
Logic Symbols
TL/F/9965–1
IEEE/IEC
TL/F/9965–2
Connection Diagrams
Pin Assignment
for DIP, Flatpak and SOIC
TL/F/9965–3
Pin Assignment
for LCC
TL/F/9965–4
Pin Names Description
D
0
–D
7
Data Inputs
CP Clock Pulse Input
OE TRI-STATE Output Enable Input
O
0
–O
7
Complementary TRI-STATE Outputs
TRI-STATE is a registered trademark of National Semiconductor Corporation.
FACTTM is a trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation RRD-B30M75/Printed in U. S. A.