onsemi MC10H211FNR2

Overview

MC10H211FNR2 from ON Semiconductor is a dual 3-input/3-output ECL NOR gate in a 20-lead PLCC package, designed for high-speed clock distribution with 1.0 ns typical propagation delay, −5.2 V VEE operation, and MECL 10K™ compatibility. It drives up to six transmission lines simultaneously and supports wire-OR logic for gate count minimization in timing-critical systems.

For engineers reviewing the MC10H211FNR2 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, PLCC-20 terminal mapping, clock skew–sensitive use cases, and validated alternative parts for ECL logic design.

Technical Context

The MC10H211FNR2 implements two independent 3-input NOR gates, each with three complementary outputs (AOUT/AOUT/AOUT and BOUT/BOUT/BOUT), enabling fanout to multiple loads without external buffering. Its voltage-compensated ECL architecture maintains stable VOH (−0.92 to −0.735 V) and VOL (−1.95 to −1.60 V) across 0°C to +75°C.

Designed for minimum clock skew, it features matched internal path delays and operates with VEE = −5.2 V ±5% and VCC1/VCC2 referenced to ground. Outputs are internally terminated for 50 Ω transmission line driving to −2.0 V, satisfying ECLinPS timing requirements per AN1405/D and AN8090/D.

Key Specifications

Pinout & Package

MC10H211FNR2 uses a 20-lead plastic leaded chip carrier (PLLC-20, Case 775), surface-mountable with gull-wing leads. Package dimensions: 9.78 × 9.78 × 2.29 mm (A × B × C), JEDEC standard footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC10H211FNR2, MC100H211FN offers tighter timing and wider temperature coverage but at higher cost and power; SN55H211J provides ruggedized packaging and screening for mission-critical deployments but lacks tape-and-reel convenience and surface-mount compatibility.

Availability

MC10H211FNR2 is available at Aetrix Electronics and suitable for high-speed clock distribution, synchronous bus timing, wire-OR logic reduction, and ECL translation interface applications requiring stable component supply and long-lifecycle support.

Supply support for MC10H211FNR2 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 is a global semiconductor supplier specializing in power management, analog, sensors, and logic devices for automotive, industrial, and communications markets.

The MC10H211FNR2 belongs to the ECLinPS family-designed specifically for ultra-low-skew, high-fanout clock and control signal distribution in telecom infrastructure, test equipment, and high-performance computing.

FAQ

What is the recommended termination for MC10H211FNR2 outputs?

MC10H211FNR2 outputs must be terminated to −2.0 V through a 50 Ω resistor, as specified in Table 2 and confirmed in AN8020/D. This ensures proper DC bias, minimizes reflections, and maintains the 1.0 ns propagation delay. Failure to terminate correctly results in degraded VOL/VOH and increased jitter. The MC10H211FNR2 datasheet explicitly states this requirement for all AC performance guarantees.

Does MC10H211FNR2 support both MECL 10H and MECL 10K logic families?

MC10H211FNR2 is explicitly MECL 10K™ compatible per its datasheet Features section and electrical specifications. While it operates at −5.2 V like 10K, its 1.0 ns tpd and 150 mV noise margin exceed baseline 10H specs. It is not characterized for MECL 10H's looser VIH/VIL windows; use MC10H211FNR2 only in 10K-compliant systems unless re-validated per AN1672/D.

Can MC10H211FNR2 be used in a +5.0 V PECL system?

No-MC10H211FNR2 requires VEE = −5.2 V and VCC referenced to ground; it lacks internal level-shifting for +5.0 V PECL. For PECL interfacing, ON Semiconductor recommends using dedicated translators like MC100EP016 or pairing MC10H211FNR2 with external bias networks per AN1406/D. Direct connection to +5.0 V PECL violates absolute maximum ratings and will damage the MC10H211FNR2.

What is the function of Pin 16 (VCC2) on MC10H211FNR2?

Pin 16 (VCC2) is a secondary VCC supply terminal intended for optional biasing configurations. In standard MECL 10K operation, VCC2 is tied to ground-this is confirmed in Figure 2 and the "Pin assignment is for Dual-in-Line Package" note. Leaving VCC2 floating or applying voltage violates the Absolute Maximum Ratings table and risks latch-up. Always connect VCC2 to GND unless implementing a non-standard bias scheme validated per AN1503/D.

Is MC10H211FNR2 RoHS compliant?

Yes-MC10H211FNR2 is offered in both standard and Pb-free versions. The "R2" suffix denotes tape-and-reel packaging; the "G" suffix (e.g., MC10H211FNR2G) explicitly indicates Pb-free construction per J-STD-609. ON Semiconductor's Pb-Free strategy documentation confirms full compliance with EU RoHS Directive 2011/65/EU and China RoHS, with homogeneous material analysis available upon request for MC10H211FNR2.