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SN74AHCT245 PDF预览

SN74AHCT245

更新时间: 2024-11-03 23:09:43
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 735K
描述
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SN74AHCT245 数据手册

 浏览型号SN74AHCT245的Datasheet PDF文件第2页浏览型号SN74AHCT245的Datasheet PDF文件第3页浏览型号SN74AHCT245的Datasheet PDF文件第4页浏览型号SN74AHCT245的Datasheet PDF文件第5页浏览型号SN74AHCT245的Datasheet PDF文件第6页浏览型号SN74AHCT245的Datasheet PDF文件第7页 
ꢋ ꢆꢇꢄꢌ ꢍꢎꢀ ꢇ ꢏꢄꢁꢀ ꢆꢐ ꢑ ꢒꢐ ꢏ  
SCLS233N − OCTOBER 1995 − REVISED MARCH 2005  
D
D
Inputs Are TTL-Voltage Compatible  
D
ESD Protection Exceeds JESD 22  
− 2000-V Human-Body Model (A114-A)  
− 200-V Machine Model (A115-A)  
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
− 1000-V Charged-Device Model (C101)  
SN54AHCT245 . . . J OR W PACKAGE  
SN74AHCT245 . . . DB, DGV, DW, N, NS,  
OR PW PACKAGE  
SN74AHCT245 . . . RGY PACKAGE  
(TOP VIEW)  
SN54AHCT245 . . . FK PACKAGE  
(TOP VIEW)  
(TOP VIEW)  
1
20  
DIR  
A1  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
V
CC  
3
2
1 20 19  
18  
A3  
A4  
A5  
A6  
A7  
B1  
B2  
4
5
6
7
8
19  
18  
17  
16  
15  
14  
13  
12  
2
3
4
5
6
7
8
9
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
17  
A2  
16 B3  
A3  
15  
B4  
B5  
A4  
14  
A5  
9 10 11 12 13  
A6  
A7  
A8  
10  
11  
GND  
description/ordering information  
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The  
control-function implementation minimizes external timing requirements.  
The ’AHCT245 devices allow data transmission 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 that the buses effectively are 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.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
PACKAGE  
T
A
PDIP − N  
Tube  
SN74AHCT245N  
SN74AHCT245N  
QFN − RGY  
Tape and reel  
Tube  
SN74AHCT245RGYR HB245  
SN74AHCT245DW  
SOIC − DW  
AHCT245  
Tape and reel  
Tape and reel  
Tape and reel  
Tube  
SN74AHCT245DWR  
SN74AHCT245NSR  
SN74AHCT245DBR  
SN74AHCT245PW  
SN74AHCT245PWR  
SOP − NS  
AHCT245  
HB245  
−40°C to 85°C  
SSOP − DB  
TSSOP − PW  
HB245  
Tape and reel  
Tape and reel  
Tube  
TVSOP − DGV  
CDIP − J  
SN74AHCT245DGVR HB245  
SNJ54AHCT245J  
SNJ54AHCT245W  
SNJ54AHCT245FK  
SNJ54AHCT245J  
CFP − W  
Tube  
SNJ54AHCT245W  
SNJ54AHCT245FK  
−55°C to 125°C  
LCCC − FK  
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 2005, Texas Instruments Incorporated  
ꢋ ꢙ ꢤ ꢜ ꢛꢧ ꢢꢡ ꢟꢠ ꢡꢛ ꢝꢤ ꢦꢘ ꢞꢙ ꢟ ꢟꢛ ꢮꢑ ꢌꢕ ꢖꢏ ꢯ ꢕꢔꢰꢂ ꢔꢂꢉ 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 ꢋ ꢙ ꢞꢦ ꢦ ꢛ ꢟꢩꢣ ꢜ ꢤꢜ ꢛ ꢧꢢꢡ ꢟꢠ ꢉ ꢤꢜ ꢛ ꢧꢢꢡ ꢟꢘꢛ ꢙ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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