74F148 데이터 시트보기 (PDF) - Philips Electronics
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74F148 Datasheet PDF : 10 Pages
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Philips Semiconductors
8-input priority encoder
Product specification
74F148
FUNCTION TABLE
INPUTS
EI
I0
I1
I2
I3
I4
I5
H
X
X
X
X
X
X
L
H
H
H
H
H
H
L
X
X
X
X
X
X
L
X
X
X
X
X
X
L
X
X
X
X
X
L
L
X
X
X
X
L
H
L
X
X
X
L
H
H
L
X
X
L
H
H
H
L
X
L
H
H
H
H
L
L
H
H
H
H
H
H = High voltage level
L = Low voltage level
X = Don’t care
APPLICATION
LSB
I0
EI
EO
GS
I1 I2 I3 I4 I5
A0 A1 A2
I6 I7
OUTPUTS
I6
I7
GS
A0
A1
A2
EO
X
X
H
H
H
H
H
H
H
H
H
H
H
L
X
L
L
L
L
L
H
L
H
L
H
L
L
H
H
H
L
L
H
L
H
H
H
L
H
H
L
H
H
H
L
L
L
H
H
H
H
L
H
L
H
H
H
H
L
L
H
H
H
H
H
L
H
H
H
H
ENABLE
MSB
I0 I1 I2 I3 I4 I5 I6 I7
EI
EO
GS
A0 A1 A2
A0 A1 A2 A3
FLAG
16-Input Priority Encoder
SF00185
March 1, 1990
4
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