Fairchild MM74C175 service manual

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MM74C175
Quad D-Type Flip-Flop

MM74C175 Quad D-Type Flip-Flop

October 1987
Revised January 1999

General Description

The MM74C175 consis ts of four positive-edge triggered D ­type flip-flops implemented with monolithic CMOS technol­ogy. Both are true and compleme nted outputs from each
flip-flop are externally available. All four flip-flops are con­trolled by a common clock and a common clear. Informa­tion at the D-type inputs meeting the set-up time
requirements is transferred t o the Q outputs on the posi­tive-going edge of the clock pulse. The clear ing operation,
enabled by a negative pulse at Clear input, clears all four Q

outputs to logical “0” and Q's to logical “1”.

All inputs are protected from static discharge by diode
clamps to V

and GND.

CC

Features

■ Wide supply voltage range: 3V to 15V

■ Guaranteed noise margin: 1.0V

■ High noise immunity: 0.45 V

■ Low power TTL compatibility: Fan out of 2 driving 74L

CC

(typ.)

Ordering Code:

Order Number Package Number Package Description

MM74C175M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
MM74C175N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

Device also available in Tape and Reel. Specify by appendin g s uf f ix let t er “X” to the ordering code.

Connection Diagram

Pin Assignments for DIP and SOIC

Top View

Truth Table

Each Flip-Flop

Inputs Outputs

Clear Clock D Q Q

LXXLH
H ↑ HHL
H ↑ LLH
HHXNCNC
HLXNCNC

H = HIGH Level
L = LOW Level
X = Irrelevant
↑ = Transition from LOW-to-HIGH level
NC = No Change

© 1999 Fairchild Semiconductor Corporation DS005900.prf www.fairchildsemi.com

Block Diagrams

MM74C175

Typical One of Four

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