1. General description

The 74HC126; 74HCT126 is a quad buffer/line driver with 3-state outputs controlled by the output

enable inputs (nOE). A LOW on nOE causes the outputs to assume a high-impedance OFF-state.

Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to

voltages in excess of VCC.

2. Features and benefits

• Wide supply voltage range from 2.0 V to 6.0 V

• CMOS low power dissipation

• High noise immunity

• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

• Complies with JEDEC standards:

• JESD8C (2.7 V to 3.6 V)

• JESD7A (2.0 V to 6.0 V)

• Input levels:

• For 74HC126: CMOS levels

• For 74HCT126: TTL levels

• ESD protection:

• HBM: ANSI/ESDA/Jedec JS-001 Class 2 exceeds 2000 V

• Specified from -40 °C to +85 °C and from -40 °C to +125 °C

74HCT126D属于集成电路（IC） > 缓冲器，驱动器，接收器，收发器。安世半导体(中国)有限公司制造生产的74HCT126D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。