© 1999 Fairchild Semiconductor Corporation DS009567 www.fairchildsemi.com
April 1988
Revised August 1999
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74F574
Octal D-Type Flip-Flop with 3-STATE Outputs
General Description
The 74F574 is a high-speed, low power octal flip-flop with a
buffered common Clock (CP) and a buffered common Out-
put Enable (OE). The information presented to the D inputs
is stored in the flip-flops on the LOW-to-HIGH Clock (CP)
transition.
This device is functionally identical to the 74F374 except
for the pinouts.
Features
a73 Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
a73 Useful as input or output port for microprocessors
a73 Functionally identical to 74F374
a73 3-STATE outputs for bus-oriented applications

Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Order Number Package Number Package Description
74F574SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F574SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F574PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide