74LVX245集成電路（IC）的緩沖器驅(qū)動(dòng)器接收器收發(fā)器規(guī)格書(shū)PDF中文資料

74LVX245屬于集成電路（IC）的緩沖器驅(qū)動(dòng)器接收器收發(fā)器。由安森美半導(dǎo)體公司制造生產(chǎn)的74LVX245緩沖器，驅(qū)動(dòng)器，接收器，收發(fā)器邏輯緩沖器、驅(qū)動(dòng)器、接收器和收發(fā)器允許隔離對(duì)某個(gè)電路的邏輯信號(hào)的訪問(wèn)，以用于另一電路。緩沖器將其輸入信號(hào)（不變或反相）傳遞到其輸出，并可能用于清除弱信號(hào)或驅(qū)動(dòng)負(fù)載。在布爾邏輯仿真器中，緩沖器主要用于增加傳播延遲。邏輯接收器和收發(fā)器允許在數(shù)據(jù)總線之間進(jìn)行隔離通信。

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