HD74LS245 Datasheet, PDF (2/6 Pages) Hitachi Semiconductor – OCTAL BUS TRANCEIVERS (WITH THREE STATE OUTPUTS)

HD74LS245
Function Table
Note:
Enable G
L
L
H
H; high level, L; low level, X; irrelevant
Direction Control DIR
L
H
X
Operation
B data to A bus
A data to B bus
Isolation
Block Diagram
Enable G
Transceiver (1/8)
B
A
Direction
Control DIR
Absolute Maximum Ratings
Item
Symbol
Ratings
Supply voltage
V_CC
7
Input voltage
DIR, G
V_IN
7
A, B
V_IN
5.5
Power dissipation
P_T
400
Storage temperature
Tstg
–65 to +150
Operating temperature
Topr
–20 to +75
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Symbol
V_CC
I_OH
I_OL
Topr
Min
4.75
—
—
–20
Typ
5.00
—
—
25
Max
5.25
–15
24
75
Unit
V
V
V
mW
°C
°C
Unit
V
mA
mA
°C
Rev.3.00, Jul.15.2005, page 2 of 5