54FCT574 Datasheet, PDF (1/7 Pages) National Semiconductor (TI) – Octal D-Type Flip-Flop with TRI-STATE Outputs

October 1999
54FCT574
Octal D-Type Flip-Flop with TRI-STATE^® Outputs
General Description
The ’FCT574 is an octal flip-flop with a buffered common
Clock (CP) and a buffered common Output Enable (OE). The
information presented to the D inputs is stored in the
flip-flops on the LOW-to-HIGH Clock (CP) transition.
The device is functionally identical to the ’FCT374 except for
the pinouts.
Features
n Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
n Useful as input or output port for microprocessors
n Functionally identical to ’FCT374
n TRI-STATE outputs for bus-oriented applications
n Output sink capability of 32 mA, source capability of
12 mA
n TTL input and output level compatible
n CMOS power consumption
n Standard Microcircuit Drawing (SMD) 5962-8951301
Ordering Code
Military
54FCT574DMQB
54FCT574FMQB
54FCT574LMQB
Package Number
J20A
W20A
E20A
Connection Diagrams
Pin Assignment for DIP and Flatpak
Package Description
20-Lead Ceramic Dual-In-Line
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
Pin Descriptions
Pin
Names
D₀– D₇
CP
OE
O₀– O₇
Description
Data Inputs
Clock Pulse Input
(Active Rising Edge)
TRI-STATE Output Enable
Input (Active LOW)
TRI-STATE Outputs
DS100966-1
Pin Assignment
for LCC
DS100966-2
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS100966
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