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SN74ABT16640 PDF预览

SN74ABT16640

更新时间： 2024-11-25 23:06:11
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德州仪器 - TI 总线收发器输出元件
页数 文件大小 规格书
7页 114K
描述
16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN74ABT16640 数据手册

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SN54ABT16640, SN74ABT16640  
16-BIT BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS107C – APRIL 1992 – REVISED JANUARY 1997  
SN54ABT16640 . . . WD PACKAGE  
SN74ABT16640 . . . DGG OR DL PACKAGE  
(TOP VIEW)  
Members of the Texas Instruments  
Widebus Family  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
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  
Latch-Up Performance Exceeds 500 mA Per  
JEDEC Standard JESD-17  
2
3
Typical V  
(Output Ground Bounce) < 1 V  
4
OLP  
at V  
= 5 V, T = 25°C  
5
CC  
A
6
Distributed V  
Minimizes High-Speed Switching Noise  
and GND Pin Configuration  
CC  
7
V
V
CC  
CC  
8
1B5  
1B6  
GND  
1B7  
1B8  
2B1  
2B2  
GND  
2B3  
2B4  
1A5  
1A6  
GND  
1A7  
1A8  
2A1  
2A2  
GND  
2A3  
2A4  
Flow-Through Architecture Optimizes PCB  
Layout  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
High-Drive Outputs (–32-mA I  
,
OH  
64-mA I  
)
OL  
Package Options Include Plastic 300-mil  
Shrink Small-Outline (DL) and Thin Shrink  
Small-Outline (DGG) Packages, and 380-mil  
Fine-Pitch Ceramic Flat (WD) Package  
Using 25-mil Center-to-Center Spacings  
V
V
CC  
CC  
description  
2B5  
2B6  
GND  
2B7  
2B8  
2A5  
2A6  
GND  
2A7  
2A8  
2OE  
The ’ABT16640 are inverting 16-bit transceivers  
designed for asynchronous communication  
between data buses.  
These devices can be used as two 8-bit  
transceivers or one 16-bit transceiver. It allows  
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  
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup  
CC  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
The SN54ABT16640 is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74ABT16640 is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
(each 8-bit 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.  
Widebus and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.  
Copyright 1997, 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  
1234567

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