74f244sjx-nl Fairchild Semiconductor, 74f244sjx-nl Datasheet - Page 2

• Manufacturer Part Number: 74f244sjx-nl
• Description: 74f240, 74f244 Octal Buffers/line Drivers With 3-state Outputs
• Manufacturer: Fairchild Semiconductor

©1988 Fairchild Semiconductor Corporation
74F240, 74F244 Rev. 1.4
Logic Symbols
Unit Loading/Fan Out
Note:
2. Worst-case 74F240 enabled; 74F244 disabled.
Truth Tables
74F240
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
OE
OE
I
I
O
0
0
–I
–I
OE
Pin Names
0
–O
1
2
H
L
L
7
7
, OE
1
7
, O
2
0
–O
D
X
H
L
1n
7
3-STATE Output Enable Input (Active LOW)
3-STATE Output Enable Input (Active HIGH)
Inputs (74F240)
Inputs (74F244)
Outputs
O
H
Z
L
IEEE/IEC
1n
74F240
OE
H
L
L
2
Description
D
H
X
L
2n
O
H
Z
L
2n
2
74F244
OE
H
L
L
1
600 / 106.6 (80)
HIGH/LOW
1.0 / 1.667
1.0 / 2.667
D
1.0 / 1.667
1.0 / 1.667
H
X
L
1n
U.L.
O
(2)
(2)
H
Z
L
1n
IEEE/IEC
74F244
OE
–12mA / 64mA (48mA)
H
L
L
Output I
2
20µA / –1.6mA
Input I
20µA / –1mA
20µA / –1mA
20µA / –1mA
D
X
H
L
2n
IH
OH
www.fairchildsemi.com
/ I
/ I
IL
OL
,
O
H
Z
L
2n