M54HC148D1 データシートの表示（PDF） - STMicroelectronics
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M54HC148D1 Datasheet PDF : 10 Pages
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M54HC148
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N°
9, 7, 6
10, 11, 12,
13, 1, 2, 3, 4
15
5
14
8
16
SYMBOL
A0 to A2
0 to 7
NAME AND FUNCTION
Data Outputs
Data Inputs
EO
EI
GS
GND
VCC
Enable Output
Enable Input
Priority Flag Output
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
E1
0
1
2
3
4
5
6
7
A2 A1 A0 GS E0
H
X
X
X
X
X
X
X
X
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
L
L
X
X
X
X
X
X
X
L
L
L
L
L
H
L
X
X
X
X
X
X
L
H
L
L
H
L
H
L
X
X
X
X
X
L
H
H
L
H
L
L
H
L
X
X
X
X
L
H
H
H
L
H
H
L
H
L
X
X
X
L
H
H
H
H
H
L
L
L
H
L
X
X
L
H
H
H
H
H
H
L
H
L
H
L
X
L
H
H
H
H
H
H
H
H
L
L
H
L
L
H
H
H
H
H
H
H
H
H
H
L
H
X : Don’t Care
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