onsemi NLX2GU04CMX1TCG

Overview

NLX2GU04CMX1TCG from onsemi is a dual unbuffered CMOS inverter optimized for crystal oscillator circuits, analog pulse shaping, and high-impedance amplifier interfaces. It operates from 1.65 V to 5.5 V, delivers ±16 mA balanced output drive, features overvoltage-tolerant (OVT) I/O pins rated to 7.0 V, and uses an ultra-small ULLGA6 (1.0 × 1.0 mm, 0.35 mm pitch) package.

For engineers reviewing the NLX2GU04CMX1TCG datasheet, pinout, applications, or equivalent options, key selection criteria include unbuffered architecture for oscillator stability, OVT input/output tolerance enabling mixed-voltage system interfacing, low propagation delay (as low as 0.5 ns at 5 V), and Pb-free ULLGA6 packaging for space-constrained PCB layouts.

Technical Context

The NLX2GU04CMX1TCG implements two independent unbuffered inverter stages-no internal buffering enables direct crystal feedback loop integration and preserves phase linearity critical for Pierce oscillator designs. Its input and output structures incorporate overvoltage protection diodes, allowing safe operation with input or output voltages up to 7.0 V regardless of VCC level.

Propagation delays are balanced between rising and falling edges (tPLH ≈ tPHL), supporting clean signal inversion in timing-critical paths. The device supports rail-to-rail digital input (0–5.5 V) and output swing (VOL ≤ 0.1 V at 50 µA, VOH ≥ VCC − 0.1 V at −100 µA), ensuring compatibility across 1.65 V to 5.5 V logic domains.

Key Specifications

Pinout & Package

Package: ULLGA6 (1.0 mm × 1.0 mm, 0.35 mm pitch), leadless land-grid array with exposed thermal pad; RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual unbuffered inverter applications.

Compared with SN74LVC2G04DBVR and 74LVC1G04GW,125, the NLX2GU04CMX1TCG uniquely combines dual unbuffered channels, 7 V OVT tolerance, and 1.65–5.5 V operation in a single 1.0 mm² package-enabling compact, mixed-voltage oscillator and analog interface designs without compromise.

Availability

NLX2GU04CMX1TCG is available at Aetrix Electronics and suitable for crystal oscillator modules, industrial sensor signal conditioning, and automotive body-control unit timing circuits requiring stable component supply, long-term lifecycle support, and Pb-free compliance.

Supply support for NLX2GU04CMX1TCG 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

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

The NLX2GU04CMX1TCG belongs to the MiniGate™ family of ultra-small logic devices, designed specifically for space-constrained, high-reliability applications demanding unbuffered performance, wide VCC range, and robust I/O tolerance.

FAQ

What is the primary circuit role of the NLX2GU04CMX1TCG in oscillator designs?

The NLX2GU04CMX1TCG serves as the gain element in Pierce crystal oscillator circuits, leveraging its unbuffered inverter topology to provide precise 180° phase shift and sufficient loop gain without introducing additional delay or distortion. Its low input capacitance (7 pF) and balanced propagation characteristics ensure stable oscillation at frequencies from 32.768 kHz to over 20 MHz. The NLX2GU04CMX1TCG is explicitly recommended by onsemi for this role in the official datasheet.

Does the NLX2GU04CMX1TCG support operation at 1.8 V, and what are the implications for output drive?

Yes, the NLX2GU04CMX1TCG is fully specified for 1.65 V to 5.5 V operation, including 1.8 V nominal supply. At 1.8 V, it maintains ±16 mA balanced output drive capability and guarantees VOL ≤ 0.24 V at 4 mA sink (per DC Electrical Characteristics table). This ensures reliable interfacing with 1.8 V logic families and adequate margin for driving crystal loads or small capacitive nodes. The NLX2GU04CMX1TCG's performance at 1.8 V is validated across −55 °C to +125 °C.

How does the overvoltage tolerance (OVT) of the NLX2GU04CMX1TCG protect system-level interfaces?

The NLX2GU04CMX1TCG's OVT pins withstand DC voltages up to 7.0 V on both inputs and outputs-regardless of VCC level-by integrating internal protection diodes to VCC and GND. This allows safe connection to higher-voltage signals (e.g., 5 V MCU outputs driving a 3.3 V domain) without external clamping components. The NLX2GU04CMX1TCG's OVT feature eliminates risk of latch-up or permanent damage during hot-plug events or voltage transients, as confirmed in the Maximum Ratings table.

What package type and dimensions does the NLX2GU04CMX1TCG use, and why is it suitable for miniaturized designs?

The NLX2GU04CMX1TCG uses the ULLGA6 package (Case 613AD): 1.0 mm × 1.0 mm body size, 0.35 mm pin pitch, and 0.40 mm maximum height. Its land-grid array construction eliminates leads, enabling ultra-dense placement and reduced parasitic inductance. With a total footprint of just 1.0 mm², the NLX2GU04CMX1TCG saves >50% board area versus SOT-363 alternatives-making it ideal for wearables, IoT sensors, and multi-layer PCBs where space is constrained.

Can the NLX2GU04CMX1TCG replace buffered dual inverters like the SN74LVC2G04 in oscillator applications?

No-the NLX2GU04CMX1TCG is intentionally unbuffered to minimize phase shift and preserve loop stability in crystal oscillator circuits, whereas buffered inverters like the SN74LVC2G04 introduce additional gate delay and gain roll-off that can prevent oscillation or degrade frequency accuracy. The NLX2GU04CMX1TCG's unbuffered architecture is a deliberate design choice validated for Pierce oscillator use; substituting a buffered part may result in startup failure or increased jitter. Always verify oscillator loop gain and phase margin when selecting alternatives to the NLX2GU04CMX1TCG.