The MC74VHC574 is an advanced high speed CMOS octal flip−flip with 3−state output fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

This 8−bit D−type flip−flop is controlled by a clock input and an output enable input. When the output enable input is high, the eight outputs are in a high impedance state.

The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems.

• High Speed: fmax = 180 MHz (Typ) at VCC = 5 V

• Low Power Dissipation: ICC = 4 μA (Max) at TA = 25°C

• High Noise Immunity: VNIH = VNIL = 28 VCC

• Power Down Protection Provided on Inputs

• Balanced Propagation Delays

• Designed for 2 V to 5.5 V Operating Range

• Low Noise: VOLP = 1.2 V (Max)

• Pin and Function Compatible with Other Standard Logic Families

• Latchup Performance Exceeds 300 mA

• ESD Performance: HBM > 2000 V; Machine Model > 200 V

• Chip Complexity: 266 FETs or 66.5 Equivalent Gates

• These Devices are Pb−Free and are RoHS Compliant

MC74VHC574属于集成电路（IC） > 触发器。安森美半导体公司制造生产的MC74VHC574触发器触发器是能够存储单个逻辑状态或信息“位”的基本数字存储器件。这些器件至少有两个输入；一个或多个用于传递要存储的数据，另一个用于指示存储该数据的时间点。不同的触发器类型，例如 D（延迟）、SR（置位复位）和 JK，对提供给其输入的信号有不同的响应，可用于实现不同的逻辑功能。这些器件与锁存器的不同之处在于它们是边缘敏感器件，其保持的逻辑状态仅在接收到有效时钟信号时才会改变。