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SN54ABT16863_08

更新时间： 2024-11-15 02:58:39
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德州仪器 - TI 输出元件
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7页 123K
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18-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN54ABT16863_08 数据手册

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SN54ABT16863, SN74ABT16863  
18-BIT BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS225C – JUNE 1992 – REVISED MAY 1997  
SN54ABT16863 . . . WD PACKAGE  
SN74ABT16863 . . . DL PACKAGE  
(TOP VIEW)  
Members of the Texas Instruments  
Widebus Family  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
1
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
1OEAB  
1B1  
1B2  
GND  
1B3  
1OEBA  
1A1  
1A2  
GND  
1A3  
1A4  
Latch-Up Performance Exceeds 500 mA Per  
JEDEC Standard JESD-17  
2
3
4
Typical V  
(Output Ground Bounce) < 1 V  
OLP  
5
at V  
= 5 V, T = 25°C  
CC  
A
6
1B4  
High-Impedance State During Power Up  
and Power Down  
7
V
V
CC  
CC  
8
1B5  
1B6  
1B7  
GND  
1B8  
1B9  
GND  
GND  
2B1  
2B2  
GND  
2B3  
2B4  
2B5  
1A5  
1A6  
1A7  
GND  
1A8  
1A9  
GND  
GND  
2A1  
2A2  
GND  
2A3  
2A4  
2A5  
Distributed V  
Minimizes High-Speed Switching Noise  
and GND Pin Configuration  
CC  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
Flow-Through Architecture Optimizes PCB  
Layout  
High-Drive Outputs (–32-mA I , 64-mA I  
)
OL  
OH  
Package Options Include Plastic 300-mil  
Shrink Small-Outline (DL) Package and  
380-mil Fine-Pitch Ceramic Flat (WD)  
Package Using 25-mil Center-to-Center  
Spacings  
description  
The ’ABT16863 are 18-bit noninverting  
transceivers designed for asynchronous  
communication between data buses. The  
control-function implementation minimizes  
external timing requirements.  
V
V
CC  
CC  
2B6  
2B7  
GND  
2B8  
2B9  
2A6  
2A7  
GND  
2A8  
2A9  
The ’ABT16863 can be used as two 9-bit  
transceivers or one 18-bit transceiver. They allow  
data transmission from the A bus to the B bus or  
fromtheBbustotheAbus, dependingonthelogic  
level at the output-enable (OEAB or OEBA)  
inputs.  
2OEAB  
2OEBA  
When V  
is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.  
CC  
However, to ensure the high-impedance state above 2.1 V, OE should be tied to V  
the minimum value of the resistor is determined by the current-sinking capability of the driver.  
through a pullup resistor;  
CC  
The SN54ABT16863 is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74ABT16863 is characterized for operation from –40°C to 85°C.  
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  
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  
1234567

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