The MC74VHCT125A is a high speed CMOS quad bus buffer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

The MC74VHCT125A requires the 3−state control input (OE) to be set High to place the output into the high impedance state.

The VHCT inputs are compatible with TTL levels. This device can be used as a level converter for interfacing 3.3 V to 5.0 V, because it has full 5.0 V CMOS level output swings.

Features

• High Speed: tPD = 3.8 ns (Typ) at VCC = 5.0 V

• Low Power Dissipation: ICC = 4.0 μA (Max) at TA = 25°C

• TTL−Compatible Inputs: VIL = 0.8 V; VIH = 2.0 V

• Power Down Protection Provided on Inputs

• Balanced Propagation Delays

• Designed for 2.0 V to 5.5 V Operating Range

• Low Noise: VOLP = 0.8 V (Max)

• Pin and Function Compatible with Other Standard Logic Families

• Latchup Performance Exceeds 300 mA

• ESD Performance:

Human Body Model > 2000 V;

Machine Model > 200 V

• Chip Complexity: 72 FETs or 18 Equivalent Gates

• These Devices are Pb−Free and are RoHS Compliant

MC74VHCT125A属于集成电路（IC） > 缓冲器，驱动器，接收器，收发器。安森美半导体公司制造生产的MC74VHCT125A缓冲器，驱动器，接收器，收发器逻辑缓冲器、驱动器、接收器和收发器允许隔离对某个电路的逻辑信号的访问，以用于另一电路。缓冲器将其输入信号（不变或反相）传递到其输出，并可能用于清除弱信号或驱动负载。在布尔逻辑仿真器中，缓冲器主要用于增加传播延迟。逻辑接收器和收发器允许在数据总线之间进行隔离通信。