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74ACT16640

更新时间： 2024-11-18 06:31:51
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 112K
描述
16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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74ACT16640 数据手册

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54ACT16640, 74ACT16640  
16-BIT BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCAS173A - JULY 1990 - REVISED APRIL 1996  
54ACT16640 . . . WD PACKAGE  
74ACT16640 . . . DL PACKAGE  
(TOP VIEW)  
Members of the Texas Instruments  
Widebus Family  
Inputs Are TTL-Voltage Compatible  
Flow-Through Architecture Optimizes  
PCB Layout  
1
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
1DIR  
1B1  
1B2  
GND  
1B3  
1B4  
1OE  
1A1  
1A2  
GND  
1A3  
1A4  
2
Distributed V  
Minimizes High-Speed Switching Noise  
and GND Pin Configuration  
3
CC  
4
5
EPIC (Enhanced-Performance Implanted  
CMOS) 1-µm Process  
6
7
V
V
CC  
CC  
500-mA Typical Latch-Up Immunity at  
125°C  
8
1B5  
1B6  
GND  
1B7  
1B8  
2B1  
2B2  
GND  
2B3  
2B4  
1A5  
1A6  
GND  
1A7  
1A8  
2A1  
2A2  
GND  
2A3  
2A4  
9
Packaged in Plastic 300-mil Shrink  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
Small-Outline (DL) Packages Using 25-mil  
Center-to-Center Pin Spacings and 380-mil  
Fine-Pitch Ceramic Flat (WD) Packages  
Using 25-mil Center-to-Center Spacings  
description  
The ’ACT16640 are inverting 16-bit transceivers  
designed for asynchronous communication  
between data buses.  
V
V
CC  
CC  
2B5  
2B6  
GND  
2B7  
2B8  
2A5  
2A6  
GND  
2A7  
2A8  
2OE  
These devices can be used as two 8-bit  
transceivers or one 16-bit transceiver. They allow  
data transmission from the A bus to the B bus or  
fromtheBbustotheAbus, dependingonthelogic  
level at the direction-control (1DIR and 2DIR)  
inputs. The output-enable (1OE and 2OE) inputs  
can be used to disable the device so that the  
buses are effectively isolated.  
2DIR  
The 74ACT16640 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and  
functionality of standard small-outline packages in the same printed-circuit-board area.  
The 54ACT16640 is characterized for operation over the full military temperature range of –55°C to 125°C. The  
74ACT16640 is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
(each section)  
INPUTS  
OPERATION  
DIR  
L
OE  
L
B data to A bus  
A data to B bus  
Isolation  
L
H
H
X
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 and Widebus are trademarks of Texas Instruments Incorporated.  
Copyright 1996, Texas Instruments Incorporated  
UNLESS OTHERWISE NOTED this document contains PRODUCTION  
DATA information 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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