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SN54ALS1245A Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN54ALS1245A
Description  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

SN54ALS1245A Datasheet(HTML) 1 Page - Texas Instruments

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SN54ALS1245A, SN74ALS1245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDAS245A – DECEMBER 1982 – REVISED JANUARY 1995
Copyright
© 1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Bidirectional Bus Transceivers in
High-Density 20-Pin Packages
Low-Power Versions of ′ALS245 Series
′ALS1245 Series Is Identical to ′ALS1645
Series
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
description
These octal bus transceivers are designed for
asynchronous two-way communication between
data buses. These devices transmit data from the
A bus to the B bus or from the B bus to the A bus,
depending on the logic level at the direction-
control (DIR) input. The output-enable (OE) input
can be used to disable the device so the buses are
effectively isolated.
The
SN54ALS1245A
is
characterized
for
operation over the full military temperature range
of – 55
°C to 125°C. The SN74ALS1245A is
characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
SN54ALS1245A . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54ALS1245A ...J PACKAGE
SN74ALS1245A . . . DW OR N PACKAGE
(TOP VIEW)
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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