54F240DM NSC [National Semiconductor], 54F240DM Datasheet - Page 3

• Manufacturer Part Number: 54F240DM
• Description: Octal Buffers/Line Drivers with TRI-STATE Outputs
• Manufacturer: NSC [National Semiconductor]

Unit Loading Fan Out
Truth Tables
Worst-case ’F240 enabled ’F241 ’F244 disabled
OE
OE
I
I
O
0
0
OE
OE
0
–I
–I
Pin Names
H
H
L
L
L
L
–O
1
2
7
7
1
1
OE
7
O
2
0
D
D
–O
H
H
X
L
X
L
1n
1n
7
TRI-STATE Output Enable Input (Active LOW)
TRI-STATE Output Enable Input (Active HIGH)
Inputs (’F240)
Inputs (’F241 ’F244)
Outputs
O
O
H
H
Z
L
Z
L
1n
1n
’F240
’F241
OE
OE
H
H
H
L
L
L
2
2
Description
D
D
H
H
X
L
X
L
2n
2n
O
O
H
H
Z
L
Z
L
2n
2n
3
H
L
X
Z
e
e
e
e
OE
LOW Voltage Level
H
Immaterial
High Impedance
L
L
HIGH Voltage Level
600 106 6 (80)
1
HIGH LOW
1 0 1 667
1 0 2 667
1 0 1 667
1 0 1 667
U L
D
X
H
L
1n
O
54F 74F
Z
H
L
1n
b
’F244
12 mA 64 mA (48 mA)
20 A
Output I
20 A
20 A
20 A
Input I
OE
H
L
L
2
b
b
b
b
IH
OH
1 6 mA
1 mA
1 mA
1 mA
I
IL
I
OL
D
H
X
L
2n
O
Z
H
L
2n