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74VHCT244AFT PDF预览

74VHCT244AFT

更新时间: 2024-11-04 21:16:55
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
7页 188K
描述
74VHC Series

74VHCT244AFT 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:8542.39.00.01风险等级:1.54
系列:AHCT/VHCT/VTJESD-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:TRUE
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):9.5 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):4.5 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 mm
Base Number Matches:1

74VHCT244AFT 数据手册

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74VHCT240AFT,74VHCT244AFT  
CMOS Digital Integrated Circuits Silicon Monolithic  
74VHCT240AFT,74VHCT244AFT  
1. Functional Description  
Octal Bus Buffer  
74VHCT240AFT: INVERTED, 3-STATE OUTPUTS  
74VHCT244AFT: NON-INVERTED, 3-STATE OUTPUTS  
2. General  
The 74VHCT240AFT and 74VHCT244AFT 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 74VHCT240AFT is an inverting 3-state buffer having two active-low output enables. The 74VHCT244AFT  
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.  
The input voltage are compatible with TTL output voltage.  
These devices may be used as a level converter for interfacing 3.3 V to 5 V system.  
Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (Note) pins  
without regard to the supply voltage. These structure prevents device destruction due to mismatched supply and  
input/output voltages such as battery back up, hot board insertion, etc.  
Note: Output in off-state  
3. Features  
(1) High speed: Propagation delay time = 6.1 ns (typ.) at VCC = 5 V  
(2) Quiescent supply current: ICC = 4 µA (max) at Ta = 25  
(3) Compatible with TTL input: VIL = 0.8 V(max)  
VIH = 2.0 V(min)  
(4) Power down protection is provided on all inputs and outputs.  
(5) Balanced propagation delays: tPLH tPHL  
(6) Low noise: VOLP = 1.0 V (max)  
(7) Pin and function compatible with the 74 series  
(74ACT/HCT/AHCT etc.) 240/244 type.  
4. Packaging  
TSSOP20B  
2013-02-12  
Rev.1.0  
1

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