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SN74ABT245BN PDF预览

SN74ABT245BN

更新时间： 2024-11-03 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 109K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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SN74ABT245BN 数据手册

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SN54ABT245A, SN74ABT245B  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS081H – JANUARY 1991 – REVISED MAY 1997  
SN54ABT245A . . . J OR W PACKAGE  
SN74ABT245B . . . DB, DGV, DW, N, OR PW PACKAGE  
(TOP VIEW)  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
DIR  
A1  
V
CC  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
Latch-Up Performance Exceeds 500 mA Per  
JEDEC Standard JESD-17  
A2  
A3  
A4  
Typical V  
(Output Ground Bounce) < 1 V  
OLP  
A5  
at V  
= 5 V, T = 25°C  
CC  
A
A6  
High-Impedance State During Power Up  
and Power Down  
A7  
A8  
High-Drive Outputs (–32-mA I , 64-mA I  
OH  
)
OL  
GND  
Package Options Include Plastic  
Small-Outline (DW), Shrink Small-Outline  
(DB), Thin Shrink Small-Outline (PW), and  
Thin Very Small-Outline (DGV) Packages,  
Ceramic Chip Carriers (FK), Ceramic Flat  
(W) Package, and Plastic (N) and  
Ceramic (J) DIPs  
SN54ABT245B . . . FK PACKAGE  
(TOP VIEW)  
3
2
1 20 19  
18  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
B1  
B2  
B3  
B4  
B5  
description  
17  
16  
15  
14  
These octal bus transceivers are designed for  
asynchronous communication between data  
buses. The devices transmit 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. The output-enable  
(OE) input can be used to disable the device so  
the buses are effectively isolated.  
9 10 11 12 13  
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 SN54ABT245A is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74ABT245B is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
INPUTS  
OPERATION  
OE  
L
DIR  
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-ΙΙB is a trademark 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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SN74ABT245BN 替代型号

型号 品牌 替代类型 描述 数据表
SN74ABT245BNE4 TI

完全替代

 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74ABT245N TI

类似代替

 Octal Bus Transceivers With 3-State Outputs 20-PDIP -40 to 85
5962-9214802QRA TI

功能相似

 OCTAL BUS TRANSCEIVERS WITH 3 STATE OUTPUTS

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