onsemi NLSF302MNR2G

Overview

NLSF302MNR2G from onsemi is a quad 2-input NOR gate logic IC fabricated in advanced high-speed CMOS technology, delivering TTL-compatible propagation delay (3.6 ns typ @ 5.0 V) with CMOS-level power efficiency (ICC ≤ 2.0 µA max @ 25°C). It operates across 2.0–5.5 V, supports mixed-voltage interfacing (inputs tolerate up to 7.0 V), and is housed in a Pb-free QFN-16 package - used in digital control logic, level-shifting interfaces, and noise-immune combinational circuits.

For engineers reviewing the NLSF302MNR2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 3.6 ns typical propagation delay at 5 V, 28% VCC noise immunity, 2.0–5.5 V supply range, input overvoltage tolerance to 7.0 V, and QFN-16 footprint compatibility with space-constrained board layouts.

Technical Context

The NLSF302MNR2G implements four independent 2-input NOR gates in a single silicon-gate CMOS die, with three-stage internal buffering to ensure stable output drive and high noise immunity. Its inputs are 7.0 V tolerant, enabling direct interfacing between 3.0 V logic domains and legacy 5.0 V systems without external level shifters.

It features balanced tPLH/tPHL propagation delays, power-down protection on all inputs, and latchup immunity exceeding 300 mA. The device meets stringent ESD requirements (>2000 V HBM, >200 V MM) and is rated for operation from −40°C to +85°C with full DC/AC specifications across that range.

Key Specifications

Pinout & Package

Package: QFN-16 (3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad), case 485G, Pb-free (G suffix). Pin 1 marked by dot or notch; pin 9 is GND, pin 16 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC02APWR and 74AUP1G02GW,125, the NLSF302MNR2G uniquely combines quad integration, 7.0 V input tolerance, and 2.0–5.5 V operation - making it the only option among the three qualified for direct 5 V-to-3.3 V domain bridging without external components.

Availability

NLSF302MNR2G is available at Aetrix Electronics and suitable for industrial control logic, automotive body electronics, digital power sequencing, and IoT sensor hub designs requiring stable component supply, long-term lifecycle support, and Pb-free compliance.

Supply support for NLSF302MNR2G 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 manufacturer specializing in energy-efficient, high-reliability silicon solutions for automotive, industrial, cloud, and IoT applications.

The NLSF302MNR2G belongs to onsemi's high-speed logic family designed for mixed-voltage digital systems requiring robust noise immunity, low power, and seamless interface between legacy and modern logic domains.

FAQ

What is the maximum input voltage rating for NLSF302MNR2G, and why does it matter?

The NLSF302MNR2G supports DC input voltages from −0.5 V to +7.0 V, exceeding its 2.0–5.5 V supply range. This allows direct interfacing of 5.0 V signals into 3.3 V or 2.5 V systems without external level shifters or clamping diodes - reducing component count and improving signal integrity in mixed-voltage designs. This specification is confirmed in the Maximum Ratings table of the official datasheet (Rev. 5, May 2024).

Does NLSF302MNR2G support operation at 2.0 V, and what performance can be expected?

Yes, NLSF302MNR2G is fully specified down to 2.0 V VCC. At this voltage, the typical propagation delay increases to 7.9 ns (CL = 15 pF), and output drive drops to ±4 mA, but all DC electrical characteristics - including VIH/VIL thresholds and noise margins - remain valid. This makes NLSF302MNR2G suitable for battery-powered devices with brown-out conditions or wide-input-range DC-DC converters.

Are pins 11 and 13 on NLSF302MNR2G functional or unused?

Pins 11 and 13 of the NLSF302MNR2G are explicitly designated as NC (No Connect) in the Pin Assignment diagram (Figure 2) and confirmed in the Marking Diagram notes. They have no internal connection and must remain unconnected in PCB layout - soldering or routing to them may compromise thermal performance or cause unintended coupling.

How does the noise immunity of NLSF302MNR2G compare to standard CMOS logic?

The NLSF302MNR2G specifies VNIH = VNIL = 28% VCC, meaning its input noise margin is 28% of the supply voltage - significantly higher than typical 15–20% margins in generic CMOS gates. This is achieved via buffered input stages and tightly controlled threshold design, enabling reliable operation in electrically noisy environments like motor drives or industrial PLC backplanes where transient coupling exceeds 1 V peak.

Is the exposed thermal pad on the NLSF302MNR2G QFN-16 package required to be grounded?

Yes, the exposed thermal pad (pin 9 GND connection) on the NLSF302MNR2G QFN-16 package must be soldered to a PCB ground plane using ≥4 thermal vias (0.3 mm diameter) to achieve specified thermal performance. Per the datasheet's Mechanical Case Outline and Thermal Characteristics, omitting this connection raises junction temperature by >25°C under full-speed operation - risking timing violations and long-term reliability degradation.