MC74VHCT32A

Features:

• High Speed: t_PD = 3.8ns (Typ) at V_CC = 5V
• Low Power Dissipation: I_CC = 2A (Max) at T_A = 25°C
• TTLCompatible Inputs: V_IL = 0.8V; V_IH = 2.0V
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Designed for 2V to 5.5V Operating Range
• Low Noise: V_OLP = 0.8V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300mA
• ESD Performance: HBM > 2000V; Machine Model > 200V


Pinout




Specifications

Symbol	Parameter	Value	Unit
VCC	DC Supply Voltage	0.5 to + 7.0	v
Vin	DC Input Voltage	0.5 to + 7.0	V
Vout	DC Output Voltage VCC = 0 High or Low State	0.5 to + 7.0 0.5 to VCC+ 0.5	v
IIK	Input Diode Current	20	mA
Iok	Output Diode Current (VOUTOUT>VCC)	± 20	mA
Iout	DC Output Current, per Pin	± 25	mA
Icc	DC Suply Current, Vcc and GND Pins	±50	mA
PD	Power Dissipation in Still Air, SOIC Package                                          TSSOP Package	500 450	mw
Tstg	Storage Temperature	65 to + 150

Description

The MC74VHCT32A is an advanced high speed CMOS 2input OR 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 internal circuit of MC74VHCT32A is composed of three stages, including a buffer output which provides high noise immunity and stable output.

MC74VHCT32A input is compatible with TTLtype input thresholds and the output has a full 5V CMOS level output swing. The input protection circuitry on MC74VHCT32A allows overvoltage tolerance on the input, allowing MC74VHCT32A to be used as a logiclevel  translator from 3.0V CMOS logic to 5.0V CMOS Logic or from 1.8V CMOS logic to 3.0V CMOS Logic while operating at the highvoltage power supply.

The MC74VHCT32A input structure provides protection when voltages up to 7V are applied, regardless of the supply voltage. MC74VHCT32A allows the MC74VHCT32A to be used to interface 5V circuits to 3V circuits. The output structures also provide protection when VCC = 0V. These input and output structures of MC74VHCT32A help prevent device destruction caused by supply voltage input/output voltage mismatch, battery backup, hot insertion, etc.