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SN74LVC257A-EP PDF预览

SN74LVC257A-EP

更新时间： 2024-09-27 12:47:03
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德州仪器 - TI 复用器输出元件
页数 文件大小 规格书
12页 527K
描述
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS

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SN74LVC257A-EP 数据手册

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SN74LVC257A-EP  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCAS736B–NOVEMBER 2005–REVISED JANUARY 2007  
FEATURES  
•
Controlled Baseline  
•
•
•
•
Operates From 2 V to 3.6 V  
Inputs Accept Voltages to 5.5 V  
Max tpd of 4.6 ns at 3.3 V  
–
One Assembly/Test Site, One Fabrication  
Site  
•
•
Extended Temperature Performance of –55°C  
to 125°C  
Typical VOLP (Output Ground Bounce) <0.8 V  
at VCC = 3.3 V, TA = 25°C  
Enhanced Diminishing Manufacturing Sources  
(DMS) Support  
•
Typical VOHV (Output VOH Undershoot) >2 V at  
VCC = 3.3 V, TA = 25°C  
•
•
•
Enhanced Product-Change Notification  
D OR PW PACKAGE  
(TOP VIEW)  
(1)  
Qualification Pedigree  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
(1) Component qualification in accordance with JEDEC and  
industry standards to ensure reliable operation over an  
extended temperature range. This includes, but is not limited  
to, Highly Accelerated Stress Test (HAST) or biased 85/85,  
temperature cycle, autoclave or unbiased HAST,  
A/B  
1A  
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
OE  
4A  
4B  
1B  
1Y  
2A  
12 4Y  
11  
10  
9
2B  
3A  
3B  
3Y  
electromigration, bond intermetallic life, and mold compound  
life. Such qualification testing should not be viewed as  
justifying use of this component beyond specified  
performance and environmental limits.  
2Y  
GND  
DESCRIPTION/ORDERING INFORMATION  
The SN74LVC257A-EP quadruple 2-line to 1-line data selector/multiplexer is designed for 2.7-V to 3.6-V VCC  
operation.  
The device is designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized  
systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic  
level.  
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.  
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.  
ORDERING INFORMATION  
TA  
PACKAGE(1)  
ORDERABLE PART NUMBER  
SN74LVC257AQDREP  
TOP-SIDE MARKING  
C257AEP  
SOIC – D  
Reel of 2500  
–40°C to 125°C  
TSSOP – PW  
SOIC – D  
Reel of 2000  
Reel of 2500  
Reel of 2000  
SN74LVC257AQPWREP  
SN74LVC257AMDREP(2)  
SN74LVC257AMPWREP  
C257AEP  
C257AME  
C257AME  
–55°C to 125°C  
TSSOP – PW  
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/sc/package.  
(2) Product Preview  
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 © 2005–2007, 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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SN74LVC257A-EP 替代型号

型号 品牌 替代类型 描述 数据表
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