描述 Description

The MC74VHCT02A is an advanced high speed CMOS 2-input NOR 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 3.3V to 5.0V, because it has full 5V CMOS level output swings. The VHCT02A input structures provide protection when voltages between 0V and 5.5V are applied, regardless of the supply voltage. The output structures also provide protection when VCC = 0V. 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 7V, allowing the interface of 5V systems to 3V systems.

特性 Features

? High Speed: tPD = 3.6ns (Typ) at VCC = 5 V
? Low Power Dissipation: ICC = 2mA (Max) at TA = 25°C
? TTL-Compatible Inputs: VIL = 0.8V; VIH = 2.0V
? Power Down Protection Provided on Inputs
? Balanced Propagation Delays
? Designed for 2V to 5.5V Operating Range
? Low Noise: VOLP = 0.8 V (Max)
? Pin and Function Compatible with Other Standard Logic Families
? Latchup Performance Exceeds 300mA
? ESD Performance: HBM > 2000V; Machine Model > 200V
? Chip Complexity: 40 FETs or 10 Equivalent Gates
? These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.

簡介

MC74VHCT02A屬于集成電路（IC）的門反相器。由制造生產的MC74VHCT02A門和反相器邏輯柵極和逆變器系列中的產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。雖然早就被集成電路實施形式所取代，以用于實現(xiàn)復雜功能，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。