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M74HCT245B1R 데이터 시트보기 (PDF) - STMicroelectronics

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M74HCT245B1R HCT640 INVERTING, HCT643 INVERTING/NON INVERTING OCTAL BUS TRANSCEIVER (3-STATE): HCT245 NON INVERTING STMICROELECTRONICS
STMicroelectronics STMICROELECTRONICS
M74HCT245B1R Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
M54/M74HCT245/640/643
TEST CIRCUIT ICC (Opr.)
CPD CALCULATION
CPD is to be calculated with the following
formula by using the measured value of ICC
(Opr.) in the test circuit opposite.
CPD
=
ICC
f IN
(Opr.)
x VCC
In determining the value of CPD, a relatively
high frequency of 1 MHz was applied to fIN, in
orther to eliminate any error caused by the
quiescent supply current.
6/11
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