MC74VHCT245A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MC74VHCT245A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。

The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

特性 Features

? High Speed: tPD = 4.9 ns (Typ) at VCC = 5.0 V

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

? TTL?Compatible Inputs: VIL = 0.8 V; VIH = 2.0 V

? Power Down Protection Provided on Inputs and Outputs

? Balanced Propagation Delays

? Designed for 4.5 V to 5.5 V Operating Range

? Low Noise: VOLP = 1.6 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

? Chip Complexity: 304 FETs or 76 Equivalent Gates

? 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.