Octal D-Type Flip-Flop
Description
54F 74F574 Octal D-Type Flip-Flop with TRI-STATE Outputs
May 1995
54F 74F574 Octal D-Type Flip-Flop with TRI-STATE Outputs
General Description
The ’F574 is a high-speed low power 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 This device is functionally identical to the ’F374 except for the pinouts
Features
Y Y Y Y
Inputs and outputs on opposite sides of package allowing easy interface with microprocessors Useful as input or output port for microprocessors Functionally identical to ’F374 TRI-STATE outputs for bus-oriented applications
Commercial 74F574PC
Military
Package Number N20A
Package Description 20-Lead (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line 20-Lead (0 300 Wide) Molded Small Outline JEDEC 20-Lead (0 300 Wide) Molded Small Outline EIAJ 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C
54F574DM (Note 2) 74F574SC (Note 1) 74F574SJ (Note 1) 54F574FM (Note 2) 54F574LM (Note 2)
J20A M20B M20D W20A E20A
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbols
IEEE IEC
TL F 9567 – 1
TL F 9567 – 4
Unit Loading Fan Out
54F 74F Pin Names D0 – D7 CP OE O0 – O7 Description Data Inputs Clock Pulse Input (Active LOW) TRI-STATE Output Enable Input (Active LOW) TRI-STATE Outputs UL HIGH LOW 10 10 10 10 10 10 150 40 (33 3) Input IIH IIL Output IOH IOL 20 mA b0 6 mA 20 mA b0 6 mA 20 mA b0 6 mA b 3 mA 24 mA (20 mA)
TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation
TL F 9567
RRD-B30M75 Printed in U S A
Connection Diagrams
Pin Assignment for DIP SOIC and Flatpak Pin Assignment for LCC
TL F 9567 – 3 TL F 9567–2
Functional Description
The ’F574 consists of eight edge-triggered flip-flops w...
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