HD74LS162A 查看數據表（PDF） - Renesas Electronics

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HD74LS162A

Synchronous Decade Counter (synchronous clear)

Renesas Electronics 

HD74LS162A

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 Output QA

Load

CK

A

B

C

D

RL Load circuit 1

QA

CL

Output QB

QB

Same as Load Circuit 1.

Output QC

QC

Output QD

P

T

QD

Ripple

CLR Carry

Ripple

Carry

Same as Load Circuit 1.

Same as Load Circuit 1.

Same as Load Circuit 1.

Notes: 1. CL includes probe and jig capacitance.

2. All diodes are 1S2074(H).

Rev.3.00, Jul.15.2005, page 5 of 10

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