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SN54ALS1245FH PDF预览

SN54ALS1245FH

更新时间: 2024-11-24 13:02:47
品牌 Logo 应用领域
德州仪器 - TI 总线收发器输出元件
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SN54ALS1245FH 数据手册

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SN54ALS1245A, SN74ALS1245A  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SDAS245A – DECEMBER 1982 – REVISED JANUARY 1995  
SN54ALS1245A . . . J PACKAGE  
SN74ALS1245A . . . DW OR N PACKAGE  
(TOP VIEW)  
Bidirectional Bus Transceivers in  
High-Density 20-Pin Packages  
Low-Power Versions of ALS245 Series  
ALS1245 Series Is Identical to ALS1645  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
DIR  
A1  
V
CC  
Series  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
A2  
Package Options Include Plastic  
Small-Outline (DW) Packages, Ceramic  
Chip Carriers (FK), and Standard Plastic (N)  
and Ceramic (J) 300-mil DIPs  
A3  
A4  
A5  
A6  
description  
A7  
A8  
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.  
GND  
SN54ALS1245A . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
B1  
B2  
B3  
B4  
B5  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
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.  
17  
16  
15  
14  
9 10 11 12 13  
FUNCTION TABLE  
INPUTS  
OPERATION  
OE  
L
DIR  
L
B data to A bus  
A data to B bus  
Isolation  
L
H
H
X
Copyright 1995, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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