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HD74LS293

产品:逻辑器件
在线阅读:HD74LS293.pdf

        HD74LS293


        4-bit Binary Counters

产品详情

This counter contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and divideby-eight counter. This counter has a gated zero reset. To use the maximum count length of this counter, the B input is connected to the QA output. The input count pulses are applied to input A and the outputs are as described in the appropriate function table.

 

 

Ordering Information

 

 

Part Name

 

Package Type

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

 

HD74LS293P

 

DILP-14 pin

PRDP0014AB-B

(DP-14AV)

 

P

 

 

 

Pin Arrangement

 

 

 

Absolute Maximum Ratings

 

Item

Symbol

Ratings

Unit

Supply voltage

VCC

7

V

 

Input voltage

RO  Inputs

 

VIN

7

V

A, B Inputs

5.5

V

Power dissipation

PT

400

mW

Operating temperature

Topr

–20 to +75

°C

Storage temperature

Tstg

–65 to +150

°C

 

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