54FCT574 Octal D-Type Flip-Flop with TRI-STATE Outputs
October 1999
54FCT574
Octal D-Type Flip-Flop with TRI-STATE
廬
Outputs
General Description
The 鈥橣CT574 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 鈥橣CT374 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 鈥橣CT374
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
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
Package Description
20-Lead Ceramic Dual-In-Line
Connection Diagrams
Pin Assignment for DIP and Flatpak
Pin Descriptions
Pin
Names
D
0
鈥揇
7
CP
OE
O
0
鈥揙
7
Data Inputs
Clock Pulse Input
(Active Rising Edge)
TRI-STATE Output Enable
Input (Active LOW)
TRI-STATE Outputs
Description
DS100966-1
Pin Assignment
for LCC
DS100966-2
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS100966
www.national.com
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