74F2244 查看數據表（PDF） - Fairchild Semiconductor
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74F2244 Datasheet PDF : 6 Pages
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Unit Loading/Fan Out
Pin Names
Description
U.L.
HIGH/LOW
OE1, OE2 3-STATE Output Enable Input (Active LOW)
OE2
3-STATE Output Enable Input (Active HIGH)
Ian, Ibn
Inputs
Oan,Obn
Outputs
Note 1: Worst-case F2244 disabled
1.0/1.667
1.0/1.667
1.0/2.667 (Note 1)
750/20
Input IIH/IIL
Output IOH/IOL
20 µA/−1 mA
20 µA/−1 mA
20 µA/−1.6 mA
−15 mA/12 mA
Truth Table
OE1
Ian
Oan
OE2
Ibn
Obn
H
X
Z
H
X
Z
L
H
H
L
H
H
L
L
L
L
L
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
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