HD74LS163ARPEL Просмотр технического описания (PDF) - Renesas Electronics

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HD74LS163ARPEL

Synchronous 4-bit Binary Counter (direct clear)

Renesas Electronics 

HD74LS163A

Timing Method

Clock

Clear

Load

Data

Outputs

A to D

Enable

P or T

tw (CK)

1.3V

1.3V

tsu th

1.3V

1.3V

1.3V

tsu th

3V

1.3V

0V

3V

0V

3V

1.3V

1.3V

0V

tsu th

3V

1.3V

1.3V

tsu

0V

th

3V

1.3V 1.3V

0V

Testing Method

Test Circuit

4.5V

P.G.

Zout = 50Ω

Input

P.G.

Zout = 50Ω

Input

VCC

QA

Load

CK

QA

A

B

C

QB

D

QC

P

T

QD

Ripple

CLR Carry

RL Load circuit 1

CL

QB

Same as Load Circuit 1.

QC

Same as Load Circuit 1.

QD

Same as Load Circuit 1.

Ripple

Carry

Same as Load Circuit 1.

Notes: 1. CL includes probe and jig capacitance.

2. All diodes are 1S2074(H).

Rev.2.00, Feb.18.2005, page 5 of 11

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