MC74LVX245MEL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

MC74LVX245MEL属于集成电路（IC）的缓冲器驱动器接收器收发器。由安森美半导体公司制造生产的MC74LVX245MEL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。

Octal Bus Transceiver With 5 V−Tolerant Inputs

The MC74LVX245 is an advanced high speed CMOS octal bus transceiver.

It is intended for two−way asynchronous communication between data buses. The direction of data transmission is determined by the level of the T/R input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated.

All inputs are equipped with protection circuits against static discharge.

Features

• High Speed: tPD = 4.7 ns (Typ) at VCC = 3.3 V

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

• Power Down Protection Provided on Inputs

• Balanced Propagation Delays

• 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

• Pb−Free Packages are Available*

Application Notes

• Do not force a signal on an I/O pin when it is an active output, damage may occur

• All floating (high impedance) input or I/O pins must be fixed by means of pullup or pulldown resistors or bus terminator ICs

• A parasitic diode is formed between the bus and VCC terminals. Therefore, the LVX245 cannot be used to interface 5.0 V to 3.0 V systems directly