74FR16540 데이터 시트보기 (PDF) - Fairchild Semiconductor
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74FR16540 Datasheet PDF : 6 Pages
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Pin Descriptions
Pin Names
OEn
I0–I15
O0–O15
Description
Output Enable Inputs
Inputs
3-STATE Outputs
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Inputs
Outputs
Byte1 [0:7] Byte2 [8:15]
I0–I7 I8–I15 O0–O7 O8–O15
OE1 OE2 OE3 OE4
L
L
L
L
H
H
L
L
H
X
L
L
X
L
Z
H
X
H
L
L
X
H
Z
L
L
LHX
LX
H
Z
L
L
X
H
H
X
L
Z
HHHHX X
Z
Z
L
L
L
L
L
L
H
H
Logic Diagram
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