onsemi MC10H211M

Overview

MC10H211M from ON Semiconductor is a dual 3-input/3-output ECL NOR gate IC designed for high-speed clock distribution and wire-OR logic synthesis. It delivers 1.0 ns typical propagation delay, −5.2 V VEE operation, and drives up to six transmission lines simultaneously with MECL 10K™ compatibility and improved 150 mV noise margin.

For engineers reviewing the MC10H211M datasheet, pinout, applications, or equivalent options, this device is selected for low-skew clock fanout, multi-level ECL gating consolidation, and systems requiring deterministic timing in telecom backplanes and test instrumentation.

Technical Context

The MC10H211M implements two independent 3-input NOR gates, each with three complementary outputs (AOUT/AOUT/AOUT and BOUT/BOUT/BOUT), enabling direct wire-ORing without external diodes. Its voltage-compensated design maintains stable switching thresholds across temperature and supply variation.

All inputs accept standard MECL 10K logic levels (VIH = −1.17 V min, VIL = −1.95 V max at 25°C), and outputs are terminated to −2.0 V via 50 Ω, delivering VOH = −0.98 V and VOL = −1.95 V under nominal conditions.

Key Specifications

Pinout & Package

MC10H211M uses a 16-pin SOEIAJ surface-mount package (Case 966), 7.40 mm × 8.20 mm body, 1.27 mm pitch, gull-wing leads. Pin 1 marked by notch or dot; pin 1 corner located at top-left when marking faces upward.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC10H211M, MC10H108P reduces gate count and output flexibility but simplifies layout for single-function use; MC100H211FN offers enhanced thermal and electrical isolation between gates at the cost of larger footprint and non-drop-in replacement.

Availability

MC10H211M is available at Aetrix Electronics and suitable for clock distribution networks, wire-OR logic synthesis, test equipment timing generators, and ECL backplane interfaces requiring stable component supply and long-term obsolescence management.

Supply support for MC10H211M 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 power management, analog, sensor, and logic solutions for automotive, industrial, and communications markets.

The MC10H211M belongs to the ECLinPS™ family of high-speed ECL logic devices, engineered specifically for ultra-low-skew clock distribution and deterministic timing in telecom infrastructure and test instrumentation.

FAQ

What is the recommended termination for MC10H211M outputs?

MC10H211M outputs must be terminated to −2.0 V through 50 Ω resistors, as specified in Table 2 and Figure 1 of the datasheet. This termination ensures correct VOH/VOL levels and minimizes reflections on transmission lines. Failure to terminate properly results in degraded noise margin and increased propagation delay variation. The MC10H211M datasheet explicitly states that outputs are characterized under this condition, and deviation invalidates guaranteed AC performance.

Is MC10H211M pin-compatible with MC10H211P or MC10H211L?

No, MC10H211M is not pin-compatible with MC10H211P (PDIP-16) or MC10H211L (CDIP-16). While all share identical logic functionality and pin numbering, the SOEIAJ-16 package of MC10H211M has gull-wing leads and different mechanical dimensions, requiring distinct PCB footprints and assembly processes. The MC10H211M datasheet confirms separate package outlines (Case 966) versus Case 648 and Case 620A, with no claim of mechanical interchangeability.

Does MC10H211M support Pb-free soldering?

Yes, MC10H211MG and MC10H211MELG variants are Pb-free versions of MC10H211M, qualified per J-STD-020 moisture sensitivity level (MSL) 3 and compliant with RoHS Directive 2011/65/EU. The datasheet notes "Pb−Free Packages are Available" and references ON Semiconductor's Soldering and Mounting Techniques Reference Manual (SOLDERRM/D) for reflow profiles and handling requirements specific to the SOEIAJ-16 package.

Can MC10H211M operate with VEE = −4.5 V or −5.5 V?

No - MC10H211M is characterized and guaranteed only at VEE = −5.2 V ±5% (i.e., −4.94 V to −5.46 V), as stated in Table 2. Operation outside this range violates Recommended Operating Conditions and may cause VOH/VOL shift, reduced noise margin, or failure to meet propagation delay specs. The datasheet explicitly defines this as the sole valid operating point for electrical characteristics; no derating curves or extended range data are provided.

What is the function of pin 15 on MC10H211M?

Pin 15 on MC10H211M serves dual roles: it is both VCC1 (positive supply for Gate A outputs) and AOUT (true output of Gate A). This shared terminal is electrically validated in the logic diagram and pin assignment table. Designers must route this pin to both the VCC1 supply net and the AOUT signal net while ensuring no shorting between supply and signal paths; the MC10H211M datasheet confirms this dual assignment is intentional and functional.