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74VHCT245AT PDF预览

74VHCT245AT

更新时间: 2024-09-12 22:56:27
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 总线驱动器总线收发器逻辑集成电路光电二极管
页数 文件大小 规格书
9页 70K
描述
OCTAL BUS TRANSCEIVER 3-STATE

74VHCT245AT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:TSSOP, TSSOP20,.25针数:20
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.12控制类型:COMMON CONTROL
计数方向:BIDIRECTIONAL系列:AHCT/VHCT
JESD-30 代码:R-PDSO-G20JESD-609代码:e4
长度:6.5 mm逻辑集成电路类型:BUS TRANSCEIVER
最大I(ol):0.008 A湿度敏感等级:3
位数:8功能数量:1
端口数量:2端子数量:20
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:TSSOP
封装等效代码:TSSOP20,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:5 VProp。Delay @ Nom-Sup:9.5 ns
传播延迟(tpd):11 ns认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Bus Driver/Transceivers
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:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40翻译:N/A
宽度:4.4 mmBase Number Matches:1

74VHCT245AT 数据手册

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74VHCT245A  
OCTAL BUS  
TRANSCEIVER (3-STATE)  
PRELIMINARY DATA  
HIGH SPEED:tPD =4.5ns (TYP.) atVCC = 5V  
LOW POWER DISSIPATION:  
ICC =4 µA (MAX.) at TA =25 oC  
COMPATIBLEWITH TTL OUTPUTS:  
VIH =2V (MIN), VIL = 0.8V(MAX)  
POWERDOWN PROTECTIONON INPUTS&  
OUTPUTS  
SYMMETRICAL OUTPUT IMPEDANCE:  
|IOH| = IOL = 8 mA (MIN)  
BALANCEDPROPAGATIONDELAYS:  
tPLH tPHL  
M
T
(Micro Package)  
(TSSOPPackage)  
ORDER CODES :  
74VHCT245AM  
74VHCT245AT  
level of the DIR input. The enable input G can be  
used to disable the device so that the busses are  
effectively isolated.  
OPERATING VOLTAGERANGE:  
VCC (OPR)= 4.5V to 5.5V  
PIN AND FUNCTION COMPATIBLEWITH  
74 SERIES245  
All inputs and outputs are equipped with  
protection circuits against static discharge, giving  
them 2KV ESD immunity and transient excess  
voltage.  
IMPROVED LATCH-UP IMMUNITY  
LOWNOISE:VOLP = 0.9V(Max.)  
IT IS PROHIBITED TO APPLY A SIGNAL TO A  
TERMINAL WHEN IT IS IN OUTPUT MODE  
AND WHEN A BUS TERMINAL IS FLOATING  
(HIGH IMPEDANCE STATE) IT IS REQUESTED  
TO FIX THE INPUT LEVEL BY MEANS OF  
EXTERNAL PULL DOWN OR PULL UP  
RESISTOR.  
DESCRIPTION  
The 74VHCT245A is an advanced high-speed  
CMOS OCTAL BUS TRANSCEIVER (3-STATE)  
fabricated with sub-micron silicon gate and  
double-layermetal wiring C2MOS technology.  
This IC is intended for two-way asynchronous  
communication between data busses; the  
direction of data trasmission is determined by the  
PIN CONNECTION AND IEC LOGIC SYMBOLS  
1/9  
August 1999  

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