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74VHCT257AM PDF预览

74VHCT257AM

更新时间: 2024-11-22 22:56:27
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 解复用器逻辑集成电路光电二极管
页数 文件大小 规格书
10页 73K
描述
QUAD 2 CHANNEL MULTIPLEXER 3-STATE

74VHCT257AM 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP16,.25
针数:16Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.55
系列:AHCT/VHCTJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:9.9 mm
负载电容(CL):50 pF逻辑集成电路类型:MULTIPLEXER
最大I(ol):0.008 A功能数量:4
输入次数:2输出次数:1
端子数量:16最高工作温度:125 °C
最低工作温度:-55 °C输出特性:3-STATE
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
包装方法:TUBE峰值回流温度(摄氏度):NOT SPECIFIED
电源:5 VProp。Delay @ Nom-Sup:9 ns
传播延迟(tpd):9 ns认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Multiplexer/Demultiplexers
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:MILITARY
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

74VHCT257AM 数据手册

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74VHCT257A  
QUAD 2 CHANNEL MULTIPLEXER (3-STATE)  
PRELIMINARY DATA  
HIGH SPEED: tPD =5.8 ns (TYP.)at VCC =5V  
LOWPOWER DISSIPATION:  
ICC = 4 µA (MAX.)at TA =25 oC  
COMPATIBLEWITH TTL OUTPUTS:  
VIH = 2V (MIN), VIL =0.8V(MAX)  
POWER DOWN PROTECTION ON INPUTS&  
OUTPUTS  
SYMMETRICALOUTPUT IMPEDANCE:  
|IOH| = IOL =8 mA (MIN)  
BALANCEDPROPAGATIONDELAYS:  
tPLH tPHL  
SOP  
TSSOP  
ORDER CODES  
TUBE  
PACKAGE  
SOP  
T & R  
74VHCT257AM 74VHCT257AMTR  
74VHCT257ATTR  
TSSOP  
OPERATINGVOLTAGERANGE:  
VCC (OPR)= 4.5Vto 5.5V  
PIN AND FUNCTION COMPATIBLEWITH  
74 SERIES257  
The 74VHCT257A is a non inverting multiplexer.  
When the ENABLE INPUT is held ”High”, all  
outputs become high impedance state. If  
SELECT INPUT is held ”Low”, ”A” data is  
selected, when SELECT INPUT is ”High”, ”B”  
data is chosen.  
IMPROVEDLATCH-UP IMMUNITY  
LOWNOISE:VOLP =0.8V(Max.)  
Power down protection is provided on all inputs  
and output and 0 to 7V can be accepted on  
inputs with no regard to the supply voltage. This  
device can be used to interface 5V to 3V.  
All inputs and outputs are equipped with  
protection circuits against static discharge, giving  
them 2KV ESD immunity and transient excess  
voltage.  
DESCRIPTION  
The 74VHCT257A is an advanced high-speed  
CMOS QUAD 2 CHANNEL MULTIPLEXER  
(3-STATE) fabricated with sub-micron silicon gate  
and  
double-layer metal  
wiring  
C2MOS  
technology.  
It is composed of four independent 2 channel  
multiplexers with common SELECT and ENABLE  
INPUT.  
PIN CONNECTION AND IEC LOGIC SYMBOLS  
1/9  
March 2000  

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