74LS245

Manufacturer Part Number74LS245
ManufacturerON Semiconductor
74LS245 datasheet
 


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SN74LS245
Octal Bus Transceiver
The SN74LS245 is an Octal Bus Transmitter/Receiver designed for
8-line asynchronous 2-way data communication between data buses.
Direction Input (DR) controls transmission of Data from bus A to bus
B or bus B to bus A depending upon its logic level. The Enable input
(E) can be used to isolate the buses.
Hysteresis Inputs to Improve Noise Immunity
2-Way Asynchronous Data Bus Communication
Input Diodes Limit High-Speed Termination Effects
ESD > 3500 Volts
LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW)
V
E
B1
B2
B3
B4
B5
CC
20
19
18
17
16
15
14
1
2
3
4
5
6
7
DIR
A1
A2
A3
A4
A5
A6
TRUTH TABLE
INPUTS
OUTPUT
OUTPUT
E
DIR
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
Isolation
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
V
Supply Voltage
4.75
CC
T
Operating Ambient
A
Temperature Range
I
Output Current – High
OH
I
Output Current – Low
OL
Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
B6
B7
B8
12
11
13
8
9
10
A7
A8
GND
Typ
Max
Unit
5.0
5.25
V
Device
0
25
70
C
SN74LS245N
– 3.0
mA
SN74LS245DW
– 15
mA
24
mA
1
http://onsemi.com
LOW
POWER
SCHOTTKY
20
1
PLASTIC
N SUFFIX
CASE 738
20
1
SOIC
DW SUFFIX
CASE 751D
ORDERING INFORMATION
Package
Shipping
16 Pin DIP
1440 Units/Box
16 Pin
2500/Tape & Reel
Publication Order Number:
SN74LS245/D