The MC74VHCT50A is a hex noninverting buffer fabricated with

silicon gate CMOS technology. It achieves high speed operation

similar to equivalent Bipolar Schottky TTL while maintaining CMOS

low power dissipation.

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

output which provides high noise immunity and stable output.

The device input is compatible with TTL?type input thresholds and

the output has a full 5 V CMOS level output swing. The input protection

circuitry on this device allows overvoltage tolerance on the input,

allowing the device to be used as a logic?level translator from 3.0 V

CMOS logic to 5.0 V CMOS Logic or from 1.8 V CMOS logic to 3.0 V

CMOS Logic while operating at the high?voltage power supply.

The MC74VHCT50A input structure provides protection when

voltages up to 7 V are applied, regardless of the supply voltage. This

allows the MC74VHCT50A to be used to interface 5 V circuits to 3 V

circuits. 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.

特性 Features

? High Speed: tPD = 3.5 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

? CMOS?Compatible Outputs: VOH > 0.8 VCC; VOL < 0.1 VCC @Load

? Power Down Protection Provided on Inputs and Outputs

? 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