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Presettable Counters

High–Performance Silicon–Gate CMOS

The MC54/74HC160A and HC162A are identical in pinout to the LS160

and LS162, respectively. The device inputs are compatible with standard

CMOS outputs; with pullup resistors, they are compatible with LSTTL

outputs.

The HC160A and HC162A are programmable BCD counters with

asynchronous and synchronous Reset inputs, respectively.

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2 to 6 V

• Low Input Current: 1 µA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7A

• Chip Complexity: 234 FETs or 58.5 Equivalent Gates

LOGIC DIAGRAM

PIN 16 = VCC

PIN 8 = GND

11

12

13

14

Q0

Q1

Q2

Q3

15

RIPPLE

CARRY

OUT

BCD

OUTPUTS

3

4

5

6

P0

P1

P2

P3

2

CLOCK

RESET

LOAD

ENABLE P

ENABLE T

COUNT

ENABLES

PRESENT

DATA

INPUTS

Device

Count

Mode

Reset Mode

HC160

BCD

Asynchronous

HC162

BCD

Synchronous

This document contains information on a product under development. Motorola reserves the right to

change or discontinue this product without notice.

MC54/74HC160A

MC54/74HC162A

PIN ASSIGNMENT

13

14

15

16

9

10

11

12

5

4

3

2

1

8

7

6

RESET

P0

CLOCK

GND

Q1

Q0

RIPPLE

CARRY OUT

VCC

P1

P2

P3

ENABLE P

Q2

Q3

ENABLE T

LOAD

D SUFFIX

SOIC PACKAGE

CASE 751B–05

N SUFFIX

PLASTIC PACKAGE

CASE 648–08

ORDERING INFORMATION

MC54HCXXXAJ

MC74HCXXXAN

MC74HCXXXAD

Ceramic

Plastic

SOIC

1

16

1

16

J SUFFIX

CERAMIC PACKAGE

CASE 620–10

1

16

Inputs

Output

Clock

Reset*

Load

Enable P

Enable T

Q

L

X

X

X

Reset

H

L

X

X

Load Preset Data

H

H

H

H

Count

H

H

L

X

No Count

H

H

X

L

No Count

FUNCTION TABLE

* HC162A only. HC160A is an Asynchronous Reset Device

H = high level

L = low level

X = don’t care