參數(shù)資料
型號: M54HC157K
廠商: STMICROELECTRONICS
元件分類: 編、解碼器及復(fù)用、解復(fù)用
英文描述: HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDFP16
封裝: CERAMIC, DFP-16
文件頁數(shù): 2/9頁
文件大小: 238K
代理商: M54HC157K
M54HC157
2/9
Figure 1: IEC Logic Symbols
Figure 2: Input And Output Equivalent Circuit
Table 1: Pin Description
Table 2: Truth Table
X : Don’t Care
PIN N°
SYMBOL
NAME AND FUNCTION
1
SELECT
Common Data Select
Input
2, 5, 11, 14
1A to 4A
Data Inputs From
Source A
3, 6, 10, 13
1B to 4B
Data Inputs From
Source B
4, 7, 9, 12
1Y to 4Y
Multiplexer Output
15
STROBE
Strobe Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
INPUTS
OUTPUTS
STROBE
SELECT
A
B
Y
H
XXX
L
LLL
X
L
LL
H
X
H
LH
X
L
LH
X
H
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