HD74LS248 데이터 시트보기 (PDF) - Renesas Electronics

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HD74LS248

BCD-to-Seven-Segment Decoder / Driver (internal pull-up outputs)

Renesas Electronics 

HD74LS248

Block Diagram

A

B

Inputs

C

D

BI/BRO

Blanking Input or

Ripple Blanking

Output

Lamp Test

Input

RBI

Ripple Blanking

Input

a

b

c

d Outputs

e

f

g

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

VCC

7

V

Input voltage

VIN

7

V

Power dissipation

Storage temperature

PT

Tstg

400

mW

–65 to +150

°C

Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.

Rev.3.00, Jul.15.2005, page 3 of 6

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