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SN74LVC245APWTE4 PDF预览

SN74LVC245APWTE4

更新时间： 2024-11-26 09:12:55
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德州仪器 - TI 总线收发器输出元件
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23页 866K
描述
OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

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SN74LVC245APWTE4 数据手册

 浏览型号SN74LVC245APWTE4的Datasheet PDF文件第2页浏览型号SN74LVC245APWTE4的Datasheet PDF文件第3页浏览型号SN74LVC245APWTE4的Datasheet PDF文件第4页浏览型号SN74LVC245APWTE4的Datasheet PDF文件第5页浏览型号SN74LVC245APWTE4的Datasheet PDF文件第6页浏览型号SN74LVC245APWTE4的Datasheet PDF文件第7页 
SN74LVC245A  
www.ti.com  
SCAS218U –JANUARY 1993–REVISED FEBRUARY 2010  
OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS  
Check for Samples: SN74LVC245A  
1
FEATURES  
DB, DGV, DW, N, NS, OR PW PACKAGE  
(TOP VIEW)  
•
•
•
•
Operates From 1.65 V to 3.6 V  
Inputs Accept Voltages to 5.5 V  
Max tpd of 6.3 ns at 3.3 V  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
DIR  
A1  
A2  
VCC  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
Typical VOLP (Output Ground Bounce)  
<0.8 V at VCC = 3.3 V, TA = 25°C  
A3  
A4  
•
•
•
•
•
Typical VOHV (Output VOH Undershoot)  
>2 V at VCC = 3.3 V, TA = 25°C  
A5  
Ioff Supports Partial-Power-Down Mode  
Operation  
A6  
A7  
Supports Mixed-Mode Signal Operation on All  
Ports (5-V Input/Output Voltage With 3.3-V VCC  
A8  
GND  
)
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
RGY PACKAGE  
(TOP VIEW)  
ESD Protection Exceeds JESD 22  
–
–
2000-V Human-Body Model (A114-A)  
1000-V Charged-Device Model (C101)  
1
20  
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  
DESCRIPTION/ORDERING INFORMATION  
This octal bus transceiver is designed for 1.65-V to  
3.6-V VCC operation.  
The SN74LVC245A is designed for asynchronous  
communication between data buses. The device  
transmits 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 effectively are isolated.  
10  
11  
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in  
a mixed 3.3-V/5-V system environment.  
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,  
preventing damaging current backflow through the device when it is powered down.  
1
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 1993–2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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SN74LVC245APWTE4 替代型号

型号 品牌 替代类型 描述 数据表
SN74LVC245APWRG4 TI

完全替代

 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SN74LVC245APWR TI

类似代替

 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
SN74LVCH245APWR TI

类似代替

 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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