54f245 National Semiconductor Corporation, 54f245 Datasheet - Page 2

• Manufacturer Part Number: 54f245
• Description: Octal Bidirectional Transceiver With Tri-state Outputs
• Manufacturer: National Semiconductor Corporation

Connection Diagrams
Unit Loading Fan Out
Truth Table
H
L
X
Pin Names
OE
T R
A
B
e
e
e
0
0
LOW Voltage Level
Immaterial
HIGH Voltage Level
–A
–B
OE
H
L
L
7
7
Inputs
DIP SOIC SSOP and Flatpak
Output Enable Input (Active LOW)
Transmit Receive Input
Side A Inputs or
TRI-STATE Outputs
Side B Inputs or
TRI-STATE Outputs
T R
Pin Assignment for
H
L
X
Description
Bus B Data to Bus A
Bus A Data to Bus B
High Z State
Output
TL F 9503–1
600 106 6(80)
150 40(38 3)
HIGH LOW
3 5 1 083
3 5 1 083
1 0 2 0
1 0 2 0
U L
2
54F 74F
b
b
12 mA 64 mA (48 mA)
3 mA 24 mA (20 mA)
70 A
70 A
20 A
20 A
Output I
Input I
b
b
b
b
IH
OH
0 65 mA
0 65 mA
1 2 mA
1 2 mA
I
IL
Pin Assignment
I
OL
for LCC
TL F 9503– 2