onsemi MC10H102FNR2G

Overview

MC10H102FNR2G from onsemi is a quad 2-input NOR gate in the MECL 10H™ family, operating at −5.2 V VEE with ECL-compatible differential logic levels. It delivers 1.0 ns typical propagation delay, 25 mW per gate power dissipation, and 150 mV improved noise margin across 0°C to +75°C. It serves as a high-speed logic building block in telecom line cards and digital test equipment.

For engineers reviewing the MC10H102FNR2G datasheet, pinout, applications, or equivalent options, key selection factors include its PLCC-20 package, −5.2 V single negative supply operation, guaranteed AC performance down to 0°C, MECL 10K pinout compatibility, and Pb-free RoHS-compliant construction.

Technical Context

The MC10H102FNR2G implements four independent 2-input NOR gates using emitter-coupled logic topology, requiring a single −5.2 V supply (VEE) referenced to ground, with VCC pins internally tied to GND. Its inputs accept standard MECL logic thresholds (VIH = −1.17 V min, VIL = −1.95 V max at 25°C), and outputs drive into 50 Ω to −2.0 V for controlled impedance termination.

All four gates share common power rails (VCC1, VCC2, VEE) and operate with matched propagation delay (tpd = 0.4–1.4 ns) and edge timing (tr/tf = 0.5–1.7 ns) across temperature. The device is voltage-compensated to maintain stable switching thresholds and noise margins over process, voltage, and temperature variations.

Key Specifications

Pinout & Package

MC10H102FNR2G is housed in a 20-lead plastic-leaded chip carrier (PLCC-20), case 775−02, with J-lead profile and gull-wing terminations. Pin 1 is marked by a notch or dot; leads are numbered counterclockwise from pin 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ECL logic applications.

Compared with MC10H102PG and MC100H102FN, the MC10H102FNR2G uniquely balances 1.0 ns speed, 25 mW/gate efficiency, and PLCC-20 manufacturability for volume SMT deployment in telecom infrastructure.

Availability

MC10H102FNR2G is available at Aetrix Electronics and suitable for telecom line cards, digital test equipment, radar signal processing, and high-speed data acquisition systems requiring stable component supply and long-term industrial availability.

Supply support for MC10H102FNR2G 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 delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud computing, and sensing applications.

The MC10H102FNR2G belongs to the MECL 10H™ logic family, engineered specifically for high-speed, low-skew digital systems where deterministic timing and noise immunity are critical - especially in telecom infrastructure and precision instrumentation.

FAQ

What is the correct supply configuration for MC10H102FNR2G?

The MC10H102FNR2G requires a single −5.2 V supply applied to pin 8 (VEE); pins 1 and 16 (VCC1/VCC2) must be connected to system ground. No positive supply is needed. This configuration establishes the proper emitter-coupled bias for all four NOR gates and ensures compliance with MECL 10H™ DC specifications. Operating outside −5.2 V ±5% risks violating VOL/VOH limits and degrading noise margin.

Is MC10H102FNR2G pin-compatible with MECL 10K devices?

Yes, the MC10H102FNR2G is a functional and pinout duplication of the MECL 10K family part, as confirmed in the official datasheet. However, its PLCC-20 footprint differs physically from the PDIP-16 layout of standard 10K parts. While logic function and terminal assignment match, PCB layout adaptation is required for direct replacement. The MC10H102FNR2G retains identical signal pin numbering and electrical interface behavior.

What termination is required for MC10H102FNR2G outputs?

MC10H102FNR2G outputs must be terminated with a 50 Ω resistor to −2.0 V, as specified in the AC characterization conditions. This termination ensures controlled impedance, minimizes reflections, and guarantees valid VOH/VOL levels (−0.84 V to −1.95 V). Failure to use −2.0 V termination results in undefined output voltages and violates the published propagation delay and timing specs.

Does MC10H102FNR2G support operation below 0°C?

No, the MC10H102FNR2G is characterized and guaranteed only for 0°C to +75°C operation. The datasheet's Maximum Ratings and Electrical Characteristics tables explicitly define TA = 0 to +75°C. Performance below 0°C - including propagation delay, noise margin, and output swing - is not tested or warranted. For extended temperature applications, consider the MC100H102 series or consult onsemi for qualified alternatives.

How does the 150 mV noise margin of MC10H102FNR2G improve system reliability?

The 150 mV noise margin of MC10H102FNR2G is measured across the full 0°C to +75°C range and represents the minimum voltage separation between VOH and VIH (high-state margin) and between VIL and VOL (low-state margin). This margin prevents false switching caused by crosstalk, ground bounce, or supply ripple in dense logic arrays - directly enabling robust operation in telecom backplanes and mixed-signal test equipment where noise coupling is unavoidable.