Octal D-Type Flip-Flop
54FCT574 Octal D-Type Flip-Flop with TRI-STATE Outputs
October 1999
54FCT574 Octal D-Type Flip-Flop with TRI-STATE® Ou...
Description
54FCT574 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
www.national.com
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