Nexperia USA Inc. 74VHCT02PW,118

Overview

74VHCT02PW,118 from Nexperia is a quad 2-input NOR gate IC in TSSOP14 package, designed for level-shifted TTL-compatible logic interfacing at 4.5 V to 5.5 V supply. It delivers balanced propagation delay (max 7.0 ns @ CL=15 pF, VCC=5 V), rail-to-rail output swing, and Schmitt-trigger inputs for noise immunity. Used in digital control signal conditioning, bus arbitration, and reset logic generation in industrial microcontroller peripherals.

For engineers reviewing the 74VHCT02PW,118 datasheet, 74VHCT02PW,118 pinout, 74VHCT02PW,118 application, or 74VHCT02PW,118 equivalent, this page provides verified pin mapping, TTL-level input compatibility, temperature-rated performance (-40 °C to +125 °C), dynamic timing under load, and real-world substitution guidance - all extracted from Nexperia's Rev. 3.1 product data sheet.

Technical Context

This device implements four independent 2-input NOR gates using high-speed Si-gate CMOS technology, fully compliant with JEDEC Std. 7-A and pin-compatible with LSTTL. Its TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) enable direct interfacing with legacy 5 V TTL outputs without level-shifting circuitry.

Each gate features Schmitt-trigger action on both inputs, providing hysteresis (typ. 0.3 V) to suppress noise-induced switching. The device operates across -40 °C to +125 °C with guaranteed static and dynamic performance, including VOH ≥ 3.70 V and VOL ≤ 0.55 V at IO = ±8 mA, supporting robust fan-out in noisy environments.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm pitch, 0.8 mm max height - optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input NOR gate applications.

Compared with 74VHC02PW,118 and SN74LV02APW, the 74VHCT02PW,118 uniquely balances TTL input compatibility, Schmitt-trigger noise rejection, and industrial temperature rating - making it the only option that satisfies all three requirements in legacy 5 V control systems.

Availability

74VHCT02PW,118 is available at Aetrix Electronics and suitable for industrial PLC input conditioning, microcontroller reset logic, bus arbitration in legacy systems, and digital signal polarity inversion requiring stable component supply across extended temperature ranges.

Supply support for 74VHCT02PW,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and discrete components with emphasis on reliability and manufacturability.

The 74VHCT series targets interoperability between modern CMOS logic and legacy TTL systems, specifically engineered for robust 5 V industrial control, instrumentation, and communication interface applications.

FAQ

Is 74VHCT02PW,118 pin-compatible with 74LS02?

Yes - it is fully pin-compatible with 74LS02 and other Low-power Schottky TTL quad NOR gates in TSSOP14 (SOT402-1) package. Pin numbering, function mapping, and physical footprint match exactly, enabling direct replacement without PCB modification.

What is the maximum capacitive load this device can drive while maintaining specified timing?

The device is characterized up to 50 pF load capacitance, with propagation delay specified as max 9.5 ns at VCC = 5 V and CL = 50 pF. Driving >50 pF increases tpd nonlinearly and may violate setup/hold margins; external buffer stages are recommended beyond this limit.

Does this part support mixed-voltage operation, e.g., 3.3 V inputs with 5 V supply?

No - the 74VHCT02PW,118 requires input voltages compatible with TTL thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V). While 3.3 V logic outputs typically meet VIH, they may not guarantee noise margin; use 74VHC02PW,118 for true 3.3 V–5 V translation instead.

How does the Schmitt-trigger input affect signal integrity in noisy environments?

Schmitt-trigger inputs provide ~0.3 V hysteresis, meaning the rising threshold (typically 1.3 V) differs from the falling threshold (typically 1.0 V). This prevents multiple transitions on slowly varying or noisy signals - critical for reliable switch debouncing and EMI-prone industrial sensor interfaces.