Nexperia USA Inc. 74LVC02APW,118

Overview

74LVC02APW from Nexperia is a quad 2-input NOR gate logic IC operating from 1.2 V to 3.6 V supply, featuring overvoltage-tolerant inputs (up to 5.5 V), Schmitt-trigger inputs for noise immunity, and guaranteed operation from −40 °C to +125 °C. It enables level translation between 3.3 V and 5 V domains in mixed-voltage digital systems such as industrial control I/O interfaces.

For engineers reviewing the 74LVC02APW datasheet, 74LVC02APW pinout, 74LVC02APW application, or 74LVC02APW equivalent, key selection criteria include input voltage tolerance, propagation delay at 3.3 V (typ. 2.2 ns), output drive strength (−24 mA/24 mA), and TSSOP14 package compatibility with high-density PCB layouts.

Technical Context

The 74LVC02APW implements four independent CMOS NOR gates with Schmitt-trigger inputs on each channel, enabling robust signal conditioning of slow-rising or noisy digital signals. Its input structure supports direct interfacing with both 3.3 V LVC logic and legacy 5 V TTL outputs without external level shifters.

Each gate exhibits symmetrical HIGH- and LOW-level propagation delays (tPLH = tPHL) under load, with output skew ≤1.5 ns across all four outputs when switching in the same direction. The device complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 for multiple VCC ranges.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm lead pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC02APWR, the 74LVC02APW offers tighter thermal specification (−40 °C to +125 °C vs. −40 °C to +105 °C) and lower quiescent current (0.1 μA vs. 2 μA), making it preferable for always-on industrial monitoring nodes.

Availability

74LVC02APW is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller I/O expansion, legacy system interfacing, and power sequencing control requiring stable component supply across extended temperature ranges.

Supply support for 74LVC02APW 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 headquartered in Nijmegen, Netherlands, specializing in high-volume logic, analog, and discrete components with emphasis on reliability and energy efficiency.

The 74LVC02A belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for mixed-voltage digital systems requiring robust level translation, low power, and industrial-grade temperature performance.

FAQ

Can the 74LVC02APW operate with a 1.2 V supply and still accept 5 V inputs?

Yes. The device is explicitly rated for input voltages up to 5.5 V regardless of VCC, which may be as low as 1.2 V. This overvoltage tolerance is achieved via internal input protection circuitry and does not require external components. Operation is fully specified across the entire −40 °C to +125 °C range at this condition.

What is the maximum capacitive load the 74LVC02APW can drive at 3.3 V while maintaining timing specs?

The 74LVC02APW maintains its specified propagation delay (max 5.5 ns) when driving a 50 pF load at VCC = 3.3 V, per Table 8 test conditions. For heavier loads, delay increases linearly with capacitance; derating curves in the datasheet show tpd ≈ 2.2 ns + (0.06 ns/pF × CL) for CL up to 100 pF.

Does the TSSOP14 package (SOT402-1) require soldering the exposed pad?

No. The TSSOP14 package for 74LVC02APW has no exposed thermal pad - only the DHVQFN14 variant (74LVC02ABQ) includes an exposed die pad. The SOT402-1 outline shows no thermal pad feature; all 14 terminals are perimeter leads. Thermal dissipation relies on copper pour under the body and lead conduction.

How does the Schmitt-trigger input improve noise immunity compared to standard CMOS inputs?

Schmitt-trigger inputs provide hysteresis (~0.3 V at 3.3 V), meaning the threshold for detecting a rising edge (VIH ≈ 2.0 V) differs from that for a falling edge (VIL ≈ 0.8 V). This prevents multiple toggles during slow or noisy transitions - critical for debouncing mechanical switches or recovering clean logic levels from long, unterminated PCB traces.