74F786 查看數據表（PDF） - Philips Electronics
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74F786 Datasheet PDF : 12 Pages
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Philips Semiconductors
4-bit asynchronous bus arbiter
Product specification
74F786
ARBITER FUNCTION TABLE
INPUTS
EN
BR0
BR1
BR2
BR3
L
1
X
X
X
L
X
1
X
X
L
X
X
1
X
L
X
X
X
1
H
X
X
X
X
Notes to mode selection function table
H = High–voltage level
L = Low–voltage level
X = Don’t care
1 = First of inputs to go low
ARBITER FUNCTION TABLE
INPUTS
A
B
C
D
L
L
L
L
L
L
L
H
L
L
H
L
L
L
H
H
L
H
L
L
L
H
L
H
L
H
H
L
L
H
H
H
H
L
L
L
H
L
L
H
H
L
H
L
H
L
H
H
H
H
L
L
H
H
L
H
H
H
H
L
H
H
H
H
Notes to AND function table
H = High–voltage level
L = Low–voltage level
OUTPUT
YOUT
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
BG0
L
H
H
H
H
OUTPUTS
BG1
BG2
H
H
L
H
H
L
H
H
H
H
BG3
H
H
H
L
H
February 14, 1991
4
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