M54HC242 datasheet(6/11 Pages) STMICROELECTRONICS

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M54HC242 数据表(PDF) 6 Page - STMicroelectronics

部件名	M54HC242

功能描述	QUAD BUS TRANSCEIVER 3-STATE

PDF	11 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

6 / 11 page

TEST CIRCUIT ICC (Opr.)

CCP 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

(Opr.)

fIN xVCC

In determining the typical value of CPD, a

relatively high frequency of 1MHz was applied to

fIN, in order to eliminate any error caused by the

quiescent supply current.

M54/M74HC242/243

6/11

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