M74HC161 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M74HC161

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

STMicroelectronics 

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M54/M74HC160/161/162/163

INPUT AND OUTPUT EQUIVALENT CIRCUIT

IEC LOGIC SYMBOL (HC160)

PIN DESCRIPTION

PIN No

1

2

3, 4, 5, 6

7

10

9

14, 13, 12,

11

15

8

16

SYMBOL

CLEAR

CLOCK

A, B, C, D

ENABLE P

ENABLET

LOAD

QA to QD

CARRY

OUTPUT

GND

VCC

NAME AND FUNCTION

Asynchronous Master

reset

Clock Input (LOW to

HIGH, Edge-triggered)

Data Inputs

Count Enable Input

Count Enable Carry Input

Parallel Enable Input

Flip Flop Outputs

Terminal Count Output

Ground (0V)

Positive Supply Voltage

IEC LOGIC SYMBOL (HC161)

IEC LOGIC SYMBOL (HC162)

IEC LOGIC SYMBOL (HC163)

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