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54F244PMQB View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54F244PMQB Octal Buffers/Line Drivers with TRI-STATE® Outputs National-Semiconductor
National ->Texas Instruments National-Semiconductor
54F244PMQB Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
Unit Loading Fan Out
Pin Names
Description
OE1 OE2
OE2
I0 – I7
I0 – I7
O0 – O7 O0 – O7
TRI-STATE Output Enable Input (Active LOW)
TRI-STATE Output Enable Input (Active HIGH)
Inputs (’F240)
Inputs (’F241 ’F244)
Outputs
Worst-case ’F240 enabled ’F241 ’F244 disabled
54F 74F
UL
HIGH LOW
1 0 1 667
1 0 1 667
1 0 1 667
1 0 2 667
600 106 6 (80)
Input IIH IIL
Output IOH IOL
20 mA b1 mA
20 mA b1 mA
20 mA b1 mA
20 mA b1 6 mA
b12 mA 64 mA (48 mA)
Truth Tables
’F240
OE1
D1n
O1n
OE2
D2n
O2n
H
X
Z
H
X
Z
L
H
L
L
H
L
L
L
H
L
L
H
’F241
OE1
D1n
O1n
OE2
D2n
O2n
H
X
Z
L
X
Z
L
H
H
H
H
H
L
L
L
H
L
L
’F244
OE1
D1n
O1n
OE2
H
X
Z
H
L
H
H
L
L
L
L
L
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
Z e High Impedance
D2n
X
H
L
O2n
Z
H
L
3
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