MC74HC163ADR2G datasheet(2/16 Pages) ONSEMI

Part #	MC74HC163ADR2G

Description	Presettable Counters High?뭁erformance Silicon?묰ate CMOS

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Manufacturer	ONSEMI [ON Semiconductor]

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MC74HC161A, MC74HC163A

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2

Inputs

Output

Clock Reset*

Load Enable P Enable T

Q

L

X

Reset

H

L

X

Load Preset Data

H

Count

H

L

X

No Count

H

X

L

No Count

FUNCTION TABLE

*HC163A only. HC161A is an Asynchronous Reset Device

H = high level, L = low level, X = don’t care

Figure 1. 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

Figure 2. Logic Diagram

PIN 16 = VCC

PIN 8 = GND

11

12

13

14 Q0

Q1

Q2

Q3

15

RIPPLE

CARRY

OUT

BCD OR

BINARY

OUTPUT

3

4

5

6

P0

P1

P2

P3

2

CLOCK

RESET

LOAD

ENABLE P

ENABLE T

COUNT

ENABLES

PRESET

DATA

INPUTS

1

9

7

10

DEVICE/MODE TABLE

Device

Count

Mode

Reset Mode

HC161A

Binary

Asynchronous

HC163A

Binary

Synchronous

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MC74HC163ADR2G Datasheet(PDF) 2 Page - ON Semiconductor

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