Nexperia USA Inc. 74LVC02ABQ,115

Overview

74LVC02ABQ from Nexperia is a quad 2-input NOR gate logic IC designed for level translation between 3.3 V and 5 V systems, featuring Schmitt-trigger inputs for noise immunity, 1.2 V to 3.6 V supply operation, and -40 °C to +125 °C industrial temperature range. It delivers 2.2 ns typical propagation delay at 3.3 V and supports 24 mA output drive per gate.

For engineers reviewing the 74LVC02ABQ datasheet, 74LVC02ABQ pinout, 74LVC02ABQ application, or 74LVC02ABQ equivalent, this device serves as a robust, low-power, voltage-tolerant logic building block in mixed-voltage digital control, interface buffering, and signal conditioning circuits where precise timing and input hysteresis are required.

Technical Context

The 74LVC02ABQ implements four independent 2-input NOR gates using advanced CMOS technology, with each input rated for overvoltage tolerance up to 5.5 V-enabling direct interfacing with both 3.3 V and 5 V logic families without external level shifters. Its Schmitt-trigger inputs provide ≥0.35 V hysteresis across the full supply range, improving noise margin against slow-rising signals.

Dynamic performance is characterized by propagation delays from 1.0 ns (min) to 5.5 ns (max) over 3.0–3.6 V supply and -40 °C to +125 °C, with output skew ≤1.5 ns between gates. Power dissipation is minimized via CPD = 8.5 pF and ICC < 40 μA at 3.6 V, supporting high-density, low-heat logic integration.

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, exposed thermal pad (non-soldered or GND-connected), 14 terminals, pin 1 index area marked.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC02APWR, the 74LVC02ABQ offers 25 % smaller footprint and superior thermal performance (9.6 mW/K derating above 98 °C), while 74AUP1G02GW trades integration density for nanowatt standby power-making the ABQ optimal for space-constrained industrial controllers needing full quad functionality and thermal resilience.

Availability

74LVC02ABQ is available at Aetrix Electronics and suitable for industrial automation, embedded control, and mixed-voltage interface design requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 74LVC02ABQ 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 high-volume, high-reliability logic, analog, and MOSFET solutions, with manufacturing rooted in process excellence and automotive-grade quality systems.

The 74LVC02ABQ belongs to the LVC (Low-Voltage CMOS) logic family, engineered specifically for interoperability across 1.2–3.6 V digital systems while maintaining compatibility with legacy 5 V interfaces through overvoltage-tolerant inputs.

FAQ

Can the 74LVC02ABQ operate with a 1.2 V supply and still interface with 5 V inputs?

Yes. The device is explicitly rated for 1.2 V to 3.6 V VCC operation while supporting input voltages up to 5.5 V on all A/B pins. This overvoltage tolerance is achieved via internal clamping structures and is verified per JEDEC JS-001 HBM testing. No external components are needed for safe 5 V signal reception at minimum supply.

What is the purpose of the exposed thermal pad on the DHVQFN14 package?

The exposed pad (terminal 1 index area) is a thermal enhancement feature-not electrically connected. It may remain floating or be soldered to a GND plane to improve heat dissipation. When soldered, it must not be tied to any voltage other than GND, as no internal connection exists. Thermal resistance drops by ~25 % when thermally anchored.

Does the Schmitt-trigger input affect propagation delay symmetry between rising and falling edges?

No. The Schmitt-trigger hysteresis applies only to input threshold levels (VIH/VIL), not to output timing. Propagation delays tPLH and tPHL are matched within 1.0 ns across -40 °C to +125 °C, as confirmed in Table 7. The hysteresis improves noise rejection without introducing duty-cycle distortion.

How does the 74LVC02ABQ compare to older 74HC02 in mixed-voltage designs?

Unlike 74HC02-which requires VCC ≥ 4.5 V for reliable 5 V input recognition-the 74LVC02ABQ accepts 5 V inputs at any VCC from 1.2 V to 3.6 V. It also offers 3× lower ICC (<40 μA vs. ~400 μA), 50 % faster tpd at 3.3 V (2.2 ns vs. ~4.5 ns), and guaranteed operation to +125 °C without derating.