onsemi M74VHC1GT00DTT1G Single Gate Logic NAND Gate: Datasheet, Pinout, and Application Circuit

The onsemi M74VHC1GT00DTT1G is a single 2-input NAND gate integrated into an ultra-small package, representing a fundamental building block in modern digital logic design. As part of the advanced VHC (Very High-Speed CMOS) family, this IC combines high-speed performance with the low power consumption characteristic of CMOS technology, making it an ideal solution for a vast array of applications, from signal conditioning to system control.

Datasheet Overview and Key Specifications

A thorough review of the datasheet reveals the device's robust electrical characteristics. It operates over a broad voltage range from 2.0 V to 5.5 V, allowing for seamless integration into both 3.3V and 5V systems. A standout feature is its impressive high-speed performance, with propagation delays (tPD) as low as 3.5 ns at 5V while maintaining very low static power dissipation. The device is also designed for toughness, featuring ESD protection exceeding 2 kV, which safeguards the component from electrostatic discharges during handling and operation. Furthermore, it offers a balanced output drive, capable of sourcing/sinking up to 8 mA, enabling it to directly interface with other logic families or drive small loads like LEDs.

Pinout Configuration

The M74VHC1GT00DTT1G is housed in a space-saving SC-75 / SOT-416 surface-mount package, crucial for compact PCB designs. The pinout is straightforward:

Pin 1 (A): Input A

Pin 2 (B): Input B

Pin 3 (GND): Ground

Pin 4 (Y): Output (A NAND B)

Pin 5 (VCC): Positive Supply Voltage

This simple and standardized configuration ensures easy implementation and reduces the chance of wiring errors on the board.

A Simple Yet Powerful Application Circuit

A quintessential use case for a NAND gate is as a clock oscillator or pulse generator. This simple circuit demonstrates its utility beyond basic logic functions.

Components Required:

IC1: M74VHC1GT00DTT1G

R1: 1 MΩ Resistor

C1: 100 pF Capacitor

Power supply (e.g., 3.3V or 5V)

Circuit Operation:

The NAND gate is configured in an astable multivibrator mode. One input (e.g., Pin 2, B) is tied to VCC to enable the gate permanently. The other input (Pin 1, A) and the output (Pin 4, Y) are connected through an RC network (R1 and C1). The resistor and capacitor values determine the oscillation frequency (f ≈ 1 / (2.2 R C)). The output produces a continuous square wave, which can be used as a clock signal for microcontrollers, digital counters, or other sequential logic circuits. This highlights how a single gate can replace a more complex dedicated oscillator chip in non-critical timing applications.

ICGOODFIND Summary

The onsemi M74VHC1GT00DTT1G is an exceptionally versatile and reliable single-gate logic solution. Its optimal blend of high speed, low power consumption, and robust ESD protection, all contained within a minuscule package, makes it an excellent choice for designers looking to add simple logic functions, clean up signals, or create simple oscillators in space-constrained and power-sensitive electronic products, from consumer IoT devices to industrial control systems.

Keywords:

NAND Gate, VHC CMOS, Propagation Delay, Application Circuit, ESD Protection