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SN74ABTR2245PW PDF预览

SN74ABTR2245PW

更新时间： 2024-11-19 22:27:59
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德州仪器 - TI 输出元件驱动
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8页 131K
描述
OCTAL TRANSCEIVERS AND LINE/MEMORY DRIVERS WITH 3-STATE OUTPUTS

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SN74ABTR2245PW 数据手册

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SN54ABTR2245, SN74ABTR2245  
OCTAL TRANSCEIVERS AND LINE/MEMORY DRIVERS  
WITH 3-STATE OUTPUTS  
SCBS680A – MARCH 1997 – REVISED MAY 1997  
SN54ABTR2245 . . . J PACKAGE  
SN74ABTR2245 . . . DB, DGV, DW, N, OR PW PACKAGE  
Outputs Have Equivalent 25-Ω Series  
Resistors, So No External Resistors Are  
Required  
(TOP VIEW)  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
DIR  
A1  
A2  
A3  
A4  
V
CC  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
High-Impedance State During Power Up  
and Power Down  
Latch-Up Performance Exceeds 500 mA Per  
JEDEC Standard JESD-17  
A5  
A6  
ESD Protection Exceeds 2000 V Per  
MIL-STD-833, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
A7  
A8  
GND  
Typical V  
(Output Ground Bounce) < 1 V  
OLP  
at V  
= 5 V, T = 25°C  
CC  
A
SN54ABTR2245 . . . FK PACKAGE  
(TOP VIEW)  
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), and Plastic (N)  
and Ceramic (J) DIPs  
3
2 1 20 19  
18  
B1  
B2  
B3  
B4  
B5  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16  
15  
14  
description  
These octal transceivers and line drivers 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  
Both the A-port and B-port outputs, which are designed to sink up to 12 mA, include equivalent 25-Ω series  
resistors to reduce overshoot and undershoot.  
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 SN54ABTR2245 is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74ABTR2245 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  
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  
12345678

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SN74ABTR2245PW 替代型号

型号 品牌 替代类型 描述 数据表
74ABT2245PW,112 NXP

类似代替

 74ABT2245 - Octal transceiver with direction pin and 30 Ohm series termination resistors (
SN74ABT2245PWRG4 TI

功能相似

 Octal Transceivers And Line/MOS Drivers With 3-State Outputs 20-TSSOP -40 to 85

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