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SN74AC245DB

更新时间： 2024-11-21 23:03:07
品牌 Logo 应用领域
德州仪器 - TI 总线收发器输出元件
页数 文件大小 规格书
6页 102K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN74AC245DB 数据手册

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SN54AC245, SN74AC245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCAS461D – FEBRUARY 1995 – REVISED DECEMBER 1996  
SN54AC245 . . . J OR W PACKAGE  
SN74AC245 . . . DB, DW, N, OR PW PACKAGE  
(TOP VIEW)  
EPIC (Enhanced-Performance Implanted  
CMOS) 1- m Process  
Package Options Include Plastic  
Small-Outline (DW), Shrink Small-Outline  
(DB), and Thin Shrink Small-Outline (PW)  
Packages, Ceramic Chip Carriers (FK), and  
Flatpacks (W), and Standard Plastic (N) and  
Ceramic (J) DIPs  
DIR  
A1  
A2  
A3  
A4  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
OE  
B1  
B2  
B3  
B4  
B5  
A5  
A6  
description  
A7  
A8  
GND  
13 B6  
The ’AC245 octal bus transceivers are designed  
for asynchronous two-way communication  
between data buses. The control-function  
implementation minimizes external timing  
requirements.  
12  
11  
B7  
B8  
SN54AC245 . . . FK PACKAGE  
(TOP VIEW)  
When the output-enable (OE) is low, the device  
passes noninverted 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.  
A high on OE disables the device so that the buses  
are effectively isolated.  
3
2
1
20 19  
18  
B1  
B2  
B3  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16  
The SN54AC245 is characterized for operation  
over the full military temperature range of –55°C  
to 125°C. The SN74AC245 is characterized for  
operation from –40°C to 85°C.  
15 B4  
14 B5  
9 10 11 12 13  
FUNCTION TABLE  
INPUTS  
OPERATION  
DIR  
OE  
L
L
H
L
H
X
B data to A bus  
A data to B bus  
Isolation  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
EPIC is a trademark of Texas Instruments Incorporated.  
Copyright 1996, 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  
123456

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