onsemi MC10H102PG

Overview

MC10H102PG from onsemi is a quad 2-input NOR gate in MECL 10H logic family, operating at −5.2 V VEE with 1.0 ns typical propagation delay, 25 mW per gate power dissipation, and improved 150 mV noise margin over temperature and voltage range. It serves as high-speed combinational logic in ECL-based timing and control circuits for telecom line cards and test equipment.

For engineers reviewing the MC10H102PG datasheet, pinout, applications, or equivalent options, key selection factors include its PDIP-16 package compatibility with legacy MECL 10K designs, guaranteed AC performance across 0°C to +75°C, and voltage-compensated input thresholds enabling stable operation without external biasing.

Technical Context

The MC10H102PG implements four independent 2-input NOR gates using emitter-coupled logic with differential inputs and complementary OR/NOR outputs per gate. Its architecture maintains MECL 10K pinout and DC logic levels while achieving 100% faster propagation delay through optimized transistor sizing and reduced internal capacitance.

All gates share common VCC1 (Pin 1), VCC2 (Pin 16), and VEE (Pin 8) supply connections. Input voltage thresholds (VIH/VIL) and output swing (VOH/VOL) are tightly specified across temperature to ensure interoperability with other MECL 10H and 10K devices without level-shifting circuitry.

Key Specifications

Pinout & Package

MC10H102PG is supplied in a 16-pin plastic dual in-line package (PDIP-16), case 648-08, with 0.300-inch body width and standard through-hole mounting. Pin 1 is VCC1, Pin 16 is VCC2, and Pin 8 is VEE - all supply pins are duplicated for low-inductance routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC10102P and SN76477N, the MC10H102PG delivers verified sub-ns timing with robust noise immunity in a drop-in PDIP-16 footprint, whereas MC10102P trades speed for maturity and SN76477N serves entirely different analog-synthesis functions.

Availability

MC10H102PG is available at Aetrix Electronics and suitable for telecom infrastructure, high-speed test instrumentation, radar signal processing, and digital oscilloscope design requiring stable component supply and long-term obsolescence management.

Supply support for MC10H102PG 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, medical, and communication markets.

The MC10H102PG belongs to the MECL 10H logic family, engineered specifically for high-speed digital systems demanding sub-nanosecond propagation, deterministic timing, and backward compatibility with established MECL 10K infrastructure.

FAQ

What is the recommended termination for MC10H102PG outputs?

MC10H102PG outputs must be terminated to −2.0 V using 50 Ω resistors, as specified in Table 2's test conditions. This termination establishes correct VOH/VOL levels and ensures signal integrity in transmission lines. Failure to terminate properly results in degraded noise margin and increased propagation delay. The MC10H102PG datasheet explicitly defines this requirement for all AC measurements and functional operation.

Is MC10H102PG pin-compatible with MC10102P?

Yes, MC10H102PG is fully pin-compatible with MC10102P - both use identical PDIP-16 pin assignments, supply pin locations (VCC1/Pin 1, VCC2/Pin 16, VEE/Pin 8), and I/O mapping. This allows direct PCB replacement without layout modification. However, MC10H102PG delivers 100% faster propagation delay and improved noise margin while maintaining the same 25 mW/gate power draw.

Does MC10H102PG require external biasing resistors?

No, MC10H102PG does not require external biasing resistors due to its integrated voltage compensation circuitry. The internal bias network dynamically adjusts input thresholds across temperature and supply variations, ensuring stable VIH/VIL operation from 0°C to +75°C. This eliminates manual resistor selection and calibration steps required by earlier MECL families.

What is the maximum continuous output current rating for MC10H102PG?

The MC10H102PG supports a maximum continuous output current of ±50 mA per output, as defined in Table 1's Absolute Maximum Ratings. Surge current up to ±100 mA is allowed for short durations. Exceeding these limits risks permanent damage. These ratings apply under the specified VEE = −5.2 V condition and assume proper termination to −2.0 V.

How does MC10H102PG achieve improved noise margin without increasing power?

MC10H102PG achieves 150 mV noise margin through optimized transistor sizing and tighter process control - not higher current. Its power supply current remains at 26–29 mA (Table 2), matching MECL 10K levels. The improvement stems from reduced input threshold variation across voltage and temperature, enabled by on-chip voltage compensation, not increased drive strength or quiescent current.