M74HC4040

2/11

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TRUTH TABLE

LOGIC DIAGRAM

This logic diagram has not be used to estimate propagation delays

PIN No

SYMBOL

NAME AND FUNCTION

9, 7, 6, 5, 3,

2, 4, 13, 12,

14, 15, 1

Q1 to Q12

Parallel Outputs

10

CLOCK

Clock Input (LOW to

HIGH, Edge Triggered)

11

CLEAR

Reset Inputs

8

GND

Ground (0V)

16

Vcc

Positive Supply Voltage

CLOCK

CLEAR

OUTPUT STATE

X

H

ALL OUTPUTS = "L"

L

NO CHANGE

L

ADVANCE TO NEXT STATE