74LCX125集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

74LCX125属于集成电路（IC）的缓冲器驱动器接收器收发器。由意法半导体集团制造生产的74LCX125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。

特性 Features

■ 5 V tolerant inputs and outputs

■ High speed

– tPD = 5.2 ns (max.) at VCC = 3 V

■ Power-down protection on inputs and outputs

■ Symmetrical output impedance

– |IOH| = IOL = 24 mA (min.) at VCC = 3 V

■ PCI bus levels guaranteed at 24 mA

■ Balanced propagation delay

– tPLH ≅ tPHL

■ Operating voltage range

– VCC (opr.) = 2.0 V to 3.6 V

■ Pin and function compatible with 74 series 125

■ Latch-up performance exceeds 500 mA

(JESD 17)

■ ESD performance

– HBM: 2000 V (MIL STD 883 method 3015)

– MM: 200 V

– CDM: 1000 V

Applications

■ Automotive

■ Industrial

■ Computer

■ Consumer

描述 Description

The 74LCX125 device is a low-voltage CMOS

quad bus buffer manufactured with sub-micron

silicon gate and double-layer metal wiring C2MOS

technology. It is ideal for low-power and highspeed

3.3 V applications and can be interfaced to

a 5 V signal environment for both inputs and

outputs.

The device requires the 3-state control input G to

be set high to place the output in the high

impedance state.

It has the same speed performance at 3.3 V as

the 5 V AC/ACT family, combined with lower

power consumption.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2 kV ESD immunity and transient excess

voltage.