M54HC77 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M54HC77

4-BIT D-TYPE LATCH

STMicroelectronics 

M54/M74HC77

TRUTH TABLE

INPUTS

OUTPUTS

D

G

Q

L

H

L

H

H

H

X

L

Qn

X: Don’t Care

FUNCTION

LATCH

PIN DESCRIPTION

PIN No

1, 2, 5, 6

3

SYMBOL

1D to 4D

G3 • 4

7, 10

8, 9, 13, 14

12

NC

1Q to 4Q

G1 • 2

11

GND

4

VCC

NAME AND FUNCTION

Data Inputs

Latch Enable Input,

Latches 3 and 4

No Internal Connection

Latch Outputs

Latch Enable Input,

Latches 1 and 2

Ground (0V)

Positive Supply Voltage

LOGIC DIAGRAM

IEC LOGIC SYMBOL

2/10

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