© 1999 Fairchild Semiconductor Corporation DS009965 www.fairchildsemi.com
November 1988
Revised November 1999
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74ACT534
Octal D-Type Flip-Flop with 3-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
3-STATE outputs for bus-oriented applications. A buffered
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
a73 I
CC
and I
OZ
reduced by 50%
a73 Edge-triggered D-type inputs
a73 Buffered positive edge-triggered clock
a73 3-STATE outputs for bus-oriented applications
a73 Outputs source/sink 24 mA
a73 ACT534 has TTL-compatible inputs
a73 Inverted output version of ACT374

Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Pin Descriptions
FACT is a trademark of Fairchild Semiconductor Corporation.
Order Number Package Number Package Description
74ACT534SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74ACT534SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT534PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Pin Names Description
D
0
–D
7
Data Inputs
CP Clock Pulse Input
OE 3-STATE Output Enable Input
O
0
–O
7
Complementary 3-STATE Outputs