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SN74LS245 Datasheet(PDF) 1 Page - ON Semiconductor

Part # SN74LS245
Description  Octal Bus Transceiver
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

SN74LS245 Datasheet(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2000
August, 2000 – Rev. 7
1
Publication Order Number:
SN74LS245/D
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)
18
17
16
15
14
13
12
3
4
5
6
7
20
19
8
VCC
DIR
E
B1
B2
B3
B5
B4
B6
A1
A2
A3
A4
A5
A6
A7
910
A8 GND
12
11
B7
B8
TRUTH TABLE
INPUTS
OUTPUT
E
DIR
OUTPUT
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
Typ
Max
Unit
VCC
Supply Voltage
4.75
5.0
5.25
V
TA
Operating Ambient
Temperature Range
0
25
70
°C
IOH
Output Current – High
–3.0
mA
–15
mA
IOL
Output Current – Low
24
mA
LOW
POWER
SCHOTTKY
Device
Package
Shipping
ORDERING INFORMATION
SN74LS245N
PDIP–20
1440 Units/Box
SN74LS245DW
SOIC–20
http://onsemi.com
2500/Tape & Reel
PDIP–20
N SUFFIX
CASE 738
20
1
20
1
A
= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
SN74LS245N
AWLYYWW
MARKING
DIAGRAMS
LS245
AWLYYWW
SOIC–20
DW SUFFIX
CASE 751D
1
1


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