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SN54AC245_03 PDF预览

SN54AC245_03

更新时间: 2024-11-21 04:51:23
品牌 Logo 应用领域
德州仪器 - TI 总线收发器输出元件
页数 文件大小 规格书
19页 589K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SN54AC245_03 数据手册

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ꢉ ꢅꢊꢄꢋ ꢌꢍꢀ ꢊ ꢎꢄꢁꢀꢅ ꢏ ꢐꢑ ꢏ ꢎ  
SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003  
SN54AC245 . . . J OR W PACKAGE  
SN74AC245 . . . DB, DW, N, NS, OR PW PACKAGE  
(TOP VIEW)  
D
D
D
2-V to 6-V V  
Operation  
CC  
Inputs Accept Voltages to 6 V  
Max t of 7 ns at 5 V  
pd  
DIR  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
V
CC  
19 OE  
1
2
3
4
5
6
7
8
9
10  
20  
description/ordering information  
18  
17  
16  
15  
14  
13  
12  
11  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
The ’AC245 octal bus transceivers are designed  
for asynchronous two-way communication  
between data buses. The control-function  
implementation minimizes external timing  
requirements.  
When the output-enable (OE) is low, the device  
passes noninverted 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.  
A high on OE disables the device so that the buses  
are effectively isolated.  
A8  
GND  
SN54AC245 . . . FK PACKAGE  
(TOP VIEW)  
To ensure the high-impedance state during power  
up or power down, OE should be tied to V  
CC  
through a pullup resistor; the minimum value of  
the resistor is determined by the current-sinking  
capability of the driver.  
3
2
1
20 19  
18  
B1  
B2  
B3  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16  
15 B4  
14 B5  
9 10 11 12 13  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
PACKAGE  
T
A
PDIP − N  
Tube  
SN74AC245N  
SN74AC245N  
Tube  
SN74AC245DW  
SN74AC245DWR  
SN74AC245NSR  
SN74AC245DBR  
SN74AC245PW  
SN74AC245PWR  
SNJ54AC245J  
SOIC − DW  
AC245  
Tape and reel  
Tape and reel  
Tape and reel  
Tube  
SOP − NS  
AC245  
AC245  
−40°C to 85°C  
SSOP − DB  
TSSOP − PW  
AC245  
Tape and reel  
Tube  
CDIP − J  
CFP − W  
LCCC − FK  
SNJ54AC245J  
SNJ54AC245W  
SNJ54AC245FK  
Tube  
SNJ54AC245W  
SNJ54AC245FK  
−55°C to 125°C  
Tube  
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
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.  
Copyright 2003, Texas Instruments Incorporated  
ꢉ ꢙ ꢤ ꢜ ꢛꢧ ꢢꢡ ꢟꢠ ꢡꢛ ꢝꢤ ꢦꢘ ꢞꢙ ꢟ ꢟꢛ ꢮꢐ ꢋꢕ ꢖꢎ ꢯ ꢕꢔꢰꢂ ꢔꢂꢇ ꢞꢦꢦ ꢤꢞ ꢜ ꢞ ꢝꢣ ꢟꢣꢜ ꢠ ꢞ ꢜ ꢣ ꢟꢣ ꢠꢟꢣ ꢧ  
ꢟ ꢣ ꢠ ꢟꢘ ꢙꢭ ꢛꢚ ꢞ ꢦꢦ ꢤꢞ ꢜ ꢞ ꢝ ꢣ ꢟ ꢣ ꢜ ꢠ ꢨ  
ꢢ ꢙꢦ ꢣꢠꢠ ꢛ ꢟꢩꢣ ꢜ ꢫꢘ ꢠꢣ ꢙ ꢛꢟꢣ ꢧꢨ ꢉ ꢙ ꢞꢦ ꢦ ꢛ ꢟꢩꢣ ꢜ ꢤꢜ ꢛ ꢧꢢꢡ ꢟꢠ ꢇ ꢤꢜ ꢛ ꢧꢢꢡ ꢟꢘꢛ ꢙ  
ꢧꢣ  
ꢝꢣ  
ꢣꢜ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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