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74VHC240FT PDF预览

74VHC240FT

更新时间: 2024-11-04 21:13:31
品牌 Logo 应用领域
东芝 - TOSHIBA 驱动光电二极管逻辑集成电路
页数 文件大小 规格书
8页 194K
描述
74VHC Series

74VHC240FT 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:TSSOP包装说明:TSSOP,
针数:20Reach Compliance Code:unknown
HTS代码:8542.39.00.01Factory Lead Time:12 weeks
风险等级:1.59系列:AHC/VHC/H/U/V
JESD-30 代码:R-PDSO-G20长度:6.5 mm
逻辑集成电路类型:BUS DRIVER位数:8
功能数量:1端口数量:2
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C输出特性:3-STATE
输出极性:INVERTED封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):NOT SPECIFIED
传播延迟(tpd):12.5 ns座面最大高度:1.2 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
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:NOT SPECIFIED
宽度:4.4 mmBase Number Matches:1

74VHC240FT 数据手册

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74VHC240FT,74VHC244FT  
CMOS Digital Integrated Circuits Silicon Monolithic  
74VHC240FT,74VHC244FT  
1. Functional Description  
Octal Bus Buffer  
74VHC240FT: INVERTED, 3-STATE OUTPUTS  
74VHC244FT: NON-INVERTED, 3-STATE OUTPUTS  
2. General  
The 74VHC240FT and 74VHC244FT are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with  
silicon gate C2MOS technology.  
They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS  
low power dissipation.  
The 74VHC240FT is an inverting 3-state buffer having two active-low output enables. The 74VHC244FT is a  
non-inverting 3-state buffer, and has two active-low output enables.  
These devices are designed to be used with 3-state memory address drivers, etc.  
An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply  
voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up.  
This circuit prevents device destruction due to mismatched supply and input voltages.  
3. Features  
(1) High speed: tpd = 3.9 ns (typ.) at VCC = 5 V  
(2) Low power dissipation: ICC = 4 µA (max) at Ta = 25  
(3) High noise immunity: VNIH = VNIL = 28 % VCC (min)  
(4) Power down protection is provided on all inputs.  
(5) Balanced propagation delays: tPLH tPHL  
(6) Wide operating voltage range: VCC(opr) = 2 V to 5.5 V  
(7) Low noise: VOLP = 0.8 V (max)  
(8) Pin and function compatible with the 74 serise (74AC/HC/AHC/LV etc.) 240 or 244 type.  
4. Packaging  
TSSOP20B  
2012-12-14  
Rev.1.0  
1

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