DM74ALS161BM 查看數據表（PDF） - Fairchild Semiconductor

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产品描述 (功能)

生产厂家

DM74ALS161BM

Synchronous Four-Bit Counter

Fairchild Semiconductor 

Connection Diagram

Mode Select Table

 Action on the Rising

Clear Load Enable T Enable P

Clock Edge ( )

L

X

X

X Reset (Clear)

H

L

X

H

H

H

X

Load (Pn → Qn)

H Count (Increment)

H

H

L

X No Change (Hold)

H

H

X

L No Change (Hold)

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

Logic Diagrams

DM74ALS161B

www.fairchildsemi.com

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