參數(shù)資料
型號(hào): M74HC257C1R
廠商: 意法半導(dǎo)體
英文描述: HC258QUAD 2CHANNEL MULTIPLEXER 3-STATE, INVERTING HC257 QUAD 2 CHANNEL MULTIPLEXER 3-STATE
中文描述: HC258QUAD 2頻道多路轉(zhuǎn)換三態(tài),反相HC257四2通道多路3態(tài)
文件頁數(shù): 6/12頁
文件大?。?/td> 259K
代理商: M74HC257C1R
IEC LOGIC SYMBOL
LOGIC DIAGRAM
HC257
HC258
TRUTH TABLE
INPUTS
OUTPUTS
OE
SELECT
A
B
Y (257)
Y (258)
HX
X
Z
LLL
X
L
H
LL
H
X
H
L
LH
X
L
H
LH
X
H
HL
X = DON’T CARE Z = HIGH IMPEDANCE
HC258
HC257
M54/M74HC257/258
3/12
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