MC74VHCT08A屬于集成電路（IC）的門反相器。由安森美半導(dǎo)體公司制造生產(chǎn)的MC74VHCT08A門和反相器邏輯柵極和逆變器系列中的產(chǎn)品對單個邏輯信號執(zhí)行基本邏輯運算（例如 AND、NOT、OR 等）。與觸發(fā)器不同，它們不能夠存儲信息，不會對提供給其輸入的信號立即做出響應(yīng)。雖然早就被集成電路實施形式所取代，以用于實現(xiàn)復(fù)雜功能，但分立柵極仍可在僅需要非常簡單邏輯功能的情況下使用。

The MC74VHCT08A is an advanced high speed CMOS 2?input

AND gate fabricated with silicon gate CMOS technology. It achieves

high speed operation similar to equivalent Bipolar Schottky TTL

while maintaining CMOS low power dissipation.

The VHCT inputs are compatible with TTL levels. This device can

be used as a level converter for interfacing 3.3 V to 5.0 V, because it

has full 5.0 V CMOS level output swings.

The VHCT08A input structures provide protection when voltages

between 0 V and 5.5 V are applied, regardless of the supply voltage.

The output structures also provide protection when VCC = 0 V. These

input and output structures help prevent device destruction caused by

supply voltage ? input/output voltage mismatch, battery backup, hot

insertion, etc.

The internal circuit is composed of three stages, including a buffer

output which provides high noise immunity and stable output. The

inputs tolerate voltages up to 7.0 V, allowing the interface of 5.0 V

systems to 3.0 V systems.

特性 Features

? High Speed: tPD = 4.3 ns (Typ) at VCC = 5 V

? Low Power Dissipation: ICC = 2 A (Max) at TA = 25°C

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

? Power Down Protection Provided on Inputs

? Balanced Propagation Delays

? Designed for 2 V to 5.5 V Operating Range

? 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

? Chip Complexity: 24 FETs or 6 Equivalent Gates

? NLV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC?Q100

Qualified and PPAP Capable

? These Devices are Pb?Free and are RoHS Compliant