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SN74ABT16245

更新时间： 2024-02-18 04:44:05
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德州仪器 - TI 输出元件
页数 文件大小 规格书
10页 170K
描述
16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN74ABT16245 数据手册

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SN54ABT16245, SN74ABT16245  
16-BIT BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS084B – D3712, JANUARY 1991 – REVISED DECEMBER 1992  
SN54ABT16245 . . . WD PACKAGE  
SN74ABT16245 . . . 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  
2
Per JEDEC Standard JESD-17  
3
• Typical V  
(Output Ground Bounce)  
OLP  
CC  
4
< 1 V at V  
= 5 V, T = 25°C  
A
5
• Distributed V  
and GND Pin Configuration  
Minimizes High-Speed Switching Noise  
6
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  
9
PCB Layout  
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  
• Packaged in Plastic 300-mil Shrink  
Small-Outline and Thin Shrink  
Small-Outline Packages and 380-mil  
Fine-Pitch Ceramic Flat Packages Using  
25-mil Center-to-Center Spacings  
V
V
CC  
CC  
description  
2B5  
2B6  
GND  
2B7  
2B8  
2A5  
2A6  
GND  
2A7  
2A8  
2OE  
The ′ABT16245 is  
a
16-bit (dual-octal)  
noninverting 3-state transceiver designed for  
synchronous two-way communication between  
data buses. The control function implementation  
minimizes external timing requirements.  
2DIR  
This device 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 from the B bus to the A bus depending upon the logic level at the  
direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses  
are effectively isolated.  
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 SN74ABT16245 is available in TI’s shrink small-outline package (DL), which provides twice the I/O pin  
count and functionality of standard small-outline packages in the same printed-circuit-board area.  
The SN54ABT16245 is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74ABT16245 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
Widebus and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.  
Copyright 1992, 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.  
3–1  
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...10

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