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74F240 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. 74F240
Description  Octal Buffers/Line Drivers with 3-STATE Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74F240 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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Logic Symbols
IEEE/IEC
74F240
IEEE/IEC
74F241
IEEE/IEC
74F244
Unit Loading/Fan Out
Note 2: Worst-case 74F240 enabled; 74F241, 74F244 disabled
Truth Tables
74F240
74F241
74F244
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Immaterial
Z
= High Impedance
Pin Names
Description
U.L.
Input IIH/IIL
HIGH/LOW
Output IOH/IOL
OE1, OE2
3-STATE Output Enable Input (Active LOW)
1.0/1.667
20
µA/−1 mA
OE2
3-STATE Output Enable Input (Active HIGH)
1.0/1.667
20
µA/−1 mA
I0–I7
Inputs (74F240)
1.0/1.667 (Note 2)
20
µA/−1 mA
I0–I7
Inputs (74F241, 74F244)
1.0/2.667 (Note 2)
20
µA/−1.6 mA
O0–O7, O0–O7 Outputs
600/106.6 (80)
−12 mA/64 mA (48 mA)
OE1
D1n
O1n
OE2
D2n
O2n
HX
Z
H
X
Z
LH
L
L
H
L
LL
H
L
L
H
OE1
D1n
O1n
OE2
D2n
O2n
HX
Z
L
X
Z
L
H
HHH
H
LLL
H
L
L
OE1
D1n
O1n
OE2
D2n
O2n
HX
Z
H
X
Z
LH
H
L
H
H
LL
LLL
L


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