| 逻辑类型Logic Type | 或门 OR Gate |
| 电路数Number of Circuits | 6 |
| 输入数Number of Inputs | 1 |
| 电源电压VccVoltage - Supply | 4.5V~5.5V |
| 静态电流IqCurrent - Quiescent (Max) | 2µA |
| 输出高，低电平电流Current - Output High, Low | -8mA.8mA |
| 低逻辑电平Logic Level - Low | 0.8v |
| 高逻辑电平Logic Level - High | 2V |
| 传播延迟时间@Vcc，CLMax Propagation Delay @ V, Max CL | 10.6ns @ 4.5V ~ 5.5V，50pF |
| Description & Applications | Quad 2-Input OR Gate ；The TC74VHCT32A is an advanced high speed CMOS 2-INPUT OR GATE fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The internal circuit is composed of 4 stages including buffer output, which provide high noise immunity and stable output. The input voltage are compatible with TTL output voltage. This device 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: VCC = 0 V Features • High speed: tpd = 3.8 ns (typ.) at VCC = 5 V • Low power dissipation: ICC = 2 μA (max) at Ta = 25°C • Compatible with TTL inputs: VIL = 0.8 V (max) VIH = 2.0 V (min) • Power down protection is provided on all inputs and outputs. • Balanced propagation delays: tpLH −∼ tpHL • Low noise: VOLP = 0.8 V (max) • Pin and function compatible with the 74 series (74AC/HC/F/ALS/LS etc.) 32 type. |
| 描述与应用 | 四路2输入或门;TC74VHCT32A是一种先进的高速CMOS 2输入或门制造与硅栅C2MOS的 技术。 它实现了高速操作类似等效 双极肖特基TTL同时保持了低功耗CMOS 耗散。 内部电路是由4个阶段，包括缓冲区 输出，提供高抗干扰性和稳定的输出。 TTL输出电压与输入电压兼容。 此装置可用于作为电平转换器用于连接3.3 V到5 V系统。 0至5.5 V输入保护和输出电路，确保 被施加到输入和输出 （注） pins不考虑 电源电压。这些结构，防止设备破坏 由于不匹配的电源和输入/输出电压，如 电池备份，热板插入等。 注：VCC= 0 V 特点 •高速：TPD =3.8纳秒（典型值），VCC= 5 V •低功耗：ICC= 2μA（最大值）在大= 25°C •兼容TTL输入：VIL=0.8 V（最大） VIH=2.0 V（分钟） •掉电保护提供所有输入和输出。 •平衡传输时延：TPLH - TPHL •低噪声：VOLP=0.8 V（最大值） •引脚和功能兼容74系列 （74AC/HC/F/ALS/LS等）32型。 |