onsemi MC10H100M

Overview

MC10H100M from ON Semiconductor is a quad 2-input NOR gate with strobe, implemented in MECL 10H logic family. It features three-input per gate (two independent + one common strobe), 1.0 ns typical propagation delay, −5.2 V VEE supply, and operates from 0°C to +75°C. It is used in high-speed digital control paths such as clock gating and bus arbitration in telecom line cards.

For engineers reviewing the MC10H100M datasheet, pinout, applications, or equivalent options, key selection criteria include strobe-controlled NOR functionality, MECL 10H compatibility, SOEIAJ-16 package thermal performance, and guaranteed AC timing across temperature.

Technical Context

The MC10H100M implements four independent NOR gates sharing a single common strobe input (Pin 9), enabling synchronous enable/disable of all outputs. Each gate accepts two dedicated inputs (e.g., Pins 1/2 for Gate A) and drives differential ECL-compatible outputs with defined VOH (−0.84 V min) and VOL (−1.95 V max) at −5.2 V VEE.

It operates strictly in the MECL 10H voltage domain: input thresholds VIH = −1.17 V min and VIL = −1.95 V max at 25°C; output termination requires 50 Ω to −2.0 V. Propagation delay varies by input path-Pin 9 strobe path is faster (0.65 ns min) than non-strobe paths (0.7 ns min).

Key Specifications

Pinout & Package

MC10H100M uses the SOEIAJ-16 surface-mount package (Case 966), 10.2 mm × 7.6 mm body, 1.27 mm pitch, gull-wing leads. Pin 1 is top-left corner, Pin 16 top-right.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC10H100M, MC10H104M offers identical timing and package but inverted logic polarity, while SN74AS805N trades speed and ECL compatibility for TTL simplicity and positive-supply operation - neither is drop-in replaceable without circuit redesign.

Availability

MC10H100M is available at Aetrix Electronics and suitable for telecom infrastructure, radar subsystems, and high-speed digital test equipment requiring stable component supply and long-lifecycle support.

Supply support for MC10H100M 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 (now part of onsemi) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, and communications markets.

The MC10H100M belongs to the legacy MECL 10H logic family, designed specifically for high-speed, low-jitter digital control in telecom switching and instrumentation where sub-2 ns timing and ECL signal integrity are mandatory.

FAQ

What is the correct termination for MC10H100M outputs?

The MC10H100M outputs must be terminated with a 50 Ω resistor to −2.0 V to meet specified propagation delay and waveform integrity. This termination is required for both rise/fall time (0.5–2.2 ns) and output voltage (VOH/VOL) compliance. Leaving outputs unterminated or using alternative terminations invalidates AC specifications.

Does MC10H100M support mixed-voltage interfacing?

No, MC10H100M operates exclusively in the MECL 10H domain with VEE = −5.2 V and no positive supply. It does not support mixed-voltage interfaces or level shifting internally. External translators like MC100ELT22 are required to interface with PECL, LVDS, or CMOS systems.

Is Pin 16 of MC10H100M connected internally?

No, Pin 16 of MC10H100M is a No Connect (NC) terminal per the official ON Semiconductor datasheet. It must remain unconnected on PCB layout; routing or soldering to this pin may cause functional failure or parametric deviation.

What is the function of the common strobe input on MC10H100M?

The common strobe input (Pin 9) enables or disables all four NOR gates simultaneously. When strobe is low, each gate outputs logic HIGH (−0.84 V typical); when strobe is high, gates perform normal NOR logic on their two dedicated inputs. This provides atomic control over output states without gate-to-gate skew.

Can MC10H100M operate at VEE = −4.5 V?

No, MC10H100M is characterized and guaranteed only at VEE = −5.2 V ±5% (−4.94 V to −5.46 V). Operation at −4.5 V falls outside maximum ratings and violates the electrical specifications table; VOH, VOL, and propagation delay are not assured, and reliability may be compromised.