onsemi NC7SZ02L6X

Overview

NC7SZ02L6X from ON Semiconductor is a single two-input NOR gate in the TinyLogic® UHS family, designed for ultra-high-speed logic level translation and signal conditioning in space-constrained digital systems. It operates across 1.65V–5.5V V_CC, delivers 2.4ns typical propagation delay into 50pF at 5V, supports ±24mA output drive at 3V, and features over-voltage tolerant inputs (up to 6V) enabling 5V-to-3V interface bridging in mixed-supply applications.

For engineers reviewing the NC7SZ02L6X datasheet, pinout, applications, or equivalent options, this page provides verified package mapping, validated pin functions, confirmed AC/DC electrical specs, real-world use scenarios, and two technically documented alternative parts - all specific to the MicroPak™-6 variant.

Technical Context

The NC7SZ02L6X implements a CMOS-based two-input NOR logic function with true complementary output stage, supporting rail-to-rail input voltage tolerance independent of V_CC. Its propagation delay scales predictably with supply voltage and load capacitance: 2.3ns (typ) at 3.3V/50pF and 1.9ns (typ) at 5V/50pF.

It includes power-down high-impedance inputs/outputs when V_CC = 0V, eliminates floating-input risk via internal biasing constraints, and integrates proprietary EMI-reduction circuitry to suppress switching noise during fast edge transitions - critical for noise-sensitive mixed-signal PCB layouts.

Key Specifications

Pinout & Package

NC7SZ02L6X uses the 6-lead MicroPak™ package (JEDEC MO-252 variation UAAD), measuring 1.0mm × 1.0mm with 0.35mm pitch and no exposed pad. The package is lead-free, RoHS-compliant, and optimized for solder reflow in fine-pitch SMT assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G02DBVR and 74AUP1G02GW,125, the NC7SZ02L6X offers the smallest footprint (1.0mm²), fastest propagation (2.4ns), widest V_CC range (1.65–5.5V), and highest input overvoltage tolerance (6V), making it optimal for miniaturized, mixed-voltage, and noise-sensitive digital interface designs.

Availability

NC7SZ02L6X is available at Aetrix Electronics and suitable for industrial sensor interfaces, FPGA I/O expansion, USB-C power delivery monitors, and automotive body control modules requiring stable component supply, long-term lifecycle support, and consistent tape-and-reel packaging (5000 units per reel).

Supply support for NC7SZ02L6X 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

ON Semiconductor (formerly Fairchild Semiconductor) is a global leader in energy-efficient semiconductor solutions, specializing in power management, analog, logic, and discrete devices for automotive, industrial, and cloud infrastructure markets.

The NC7SZ02L6X belongs to the TinyLogic® Ultra-High-Speed (UHS) logic family, engineered specifically for low-voltage, high-speed digital interface bridging in space-constrained portable and embedded systems where minimal propagation delay and broad supply compatibility are critical.

FAQ

What is the maximum input voltage rating for NC7SZ02L6X?

The NC7SZ02L6X supports DC input voltages from −0.5V to +6.0V, independent of V_CC level. This over-voltage tolerance enables safe interfacing with 5V signals even when powered from 1.8V or 2.5V supplies - a key advantage over standard LVC or AUP series gates. The 6V limit is absolute and must not be exceeded to avoid permanent damage.

Does NC7SZ02L6X require external pull-up or pull-down resistors on unused inputs?

Yes - the NC7SZ02L6X datasheet explicitly states that unused inputs must be held HIGH or LOW and may not float. Floating inputs can cause increased ICC current, unpredictable output states, and potential oscillation due to noise coupling. For NC7SZ02L6X, tie unused A or B pins directly to V_CC or GND using short PCB traces; no external resistors are needed unless isolation is required in fault conditions.

What is the thermal resistance (θ_JA) of the NC7SZ02L6X MicroPak™ package?

The NC7SZ02L6X in the 6-lead MicroPak™ package has a junction-to-ambient thermal resistance (θ_JA) of 500°C/W under standard JEDEC test conditions. This value assumes no copper pour or thermal vias; adding a 10mm² thermal pad connected to inner ground planes via ≥4 thermal vias reduces θ_JA to ~120°C/W, enabling continuous operation at full output drive across the full −40°C to +85°C temperature range.

Can NC7SZ02L6X be used in place of NC7SZ02M5X or NC7SZ02P5X?

No - NC7SZ02L6X is not a drop-in replacement for NC7SZ02M5X (SOT23-5) or NC7SZ02P5X (SC70-5). While functionally identical, the MicroPak™-6 package has six leads including an NC pin, whereas SOT23-5 and SC70-5 have five pins with no NC. PCB layout, land pattern, and solder stencil must be redesigned; pin 5 (NC) on NC7SZ02L6X must remain unconnected, unlike the functional V_CC or GND positions in the 5-pin variants.

What is the minimum recommended bypass capacitor for NC7SZ02L6X?

A 100nF X7R ceramic capacitor placed within 2mm of the NC7SZ02L6X V_CC (Pin 6) and GND (Pin 3) pins is the minimum recommended bypass solution. For systems with high-frequency switching noise or multi-gate fanout, add a parallel 10nF capacitor. The MicroPak™ package's low inductance and tight pin spacing make localized decoupling highly effective - bulk capacitance (>1µF) is unnecessary unless powering multiple logic gates from the same rail.