SN74AS867DWE4 参数 Datasheet PDF下载

SN54AS867, SN54AS869

SN74ALS867A, SN74ALS869, SN74AS867, SN74AS869

SYNCHRONOUS 8-BIT UP/DOWN COUNTERS

SDAS115C – DECEMBER 1982 – REVISED JANUARY 1995

description (continued)

The SN54AS867 and SN54AS869 are characterized for operation over the full military temperature range of

– 55°C to 125°C. The SN74ALS867A, SN74ALS869, SN74AS867, and SN74AS869 are characterized for

operation from 0°C to 70°C.

FUNCTION TABLE

S1

L

L

H

H

S0

L

H

L

H

FUNCTION

Clear

Count down

Load

Count up

2

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265