onsemi MC10211P

Overview

MC10211P from onsemi is a triple-output ECL clock driver IC designed for low-skew clock distribution, featuring 1.5 ns typical propagation delay, 1.5 ns typical rise/fall time (20–80%), and –1.06 V / –1.675 V logic-high/low output voltage levels under loaded conditions. It drives up to six transmission lines simultaneously and supports wire-OR logic gating in high-speed digital systems.

For engineers reviewing the MC10211P datasheet, pinout, applications, or equivalent options, key selection criteria include its ECL-compatible output swing, sub-2 ns timing performance across all three outputs, dual V_CC supply architecture (V_CC1, V_CC2), and PDIP-16 package compatibility with legacy MECL 10K system layouts.

Technical Context

The MC10211P implements three independent ECL gate outputs (AOUT, BOUT, COUT) driven by three common inputs (AIN, BIN, CIN), enabling parallel signal distribution with matched internal path delays. Its dual V_CC supply (pins 1/15 = V_CC1, pin 16 = V_CC2) isolates input and output power domains to minimize noise coupling.

Designed for MECL 10,000 series compatibility, it operates with V_EE = –5.2 V and requires 50 Ω terminations to –2.0 V. Input thresholds are VIH_max = –0.81 V and VIL_min = –1.85 V at +25°C, ensuring robust noise margin in high-speed backplane environments.

Key Specifications

Pinout & Package

MC10211P is housed in a 16-pin plastic dual-in-line package (PDIP-16, Case 648), with 0.3-inch body width and standard through-hole mounting. Pin 1 is top-left corner, pin 16 top-right, viewed from top with notch or dot orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ECL clock driver applications.

Compared with MC10116P and SY100EL15ZC, the MC10211P uniquely balances triple-output fanout, dual-supply noise isolation, and drop-in compatibility with existing MECL 10K PCB footprints - making it optimal for retrofit and high-integrity clock tree upgrades.

Availability

MC10211P is available at Aetrix Electronics and suitable for high-speed clock distribution, backplane signal fanout, and MECL 10K system upgrades requiring stable component supply and long-term obsolescence management.

Supply support for MC10211P 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC10211P belongs to the legacy MECL 10,000 series product line, engineered specifically for high-speed, low-skew digital systems requiring ECL-compatible timing integrity and backward compatibility with 1980s–1990s mainframe and telecom infrastructure.

FAQ

What is the recommended termination for MC10211P outputs?

MC10211P outputs must be terminated with 50 Ω resistors to –2.0 V, as specified in the Electrical Characteristics table. This termination ensures proper ECL logic levels, minimizes reflections on transmission lines, and maintains the 1.5 ns typical propagation delay and rise/fall times. Using incorrect termination (e.g., open-drain or TTL-style pull-ups) will cause invalid output voltages and timing violations in the MC10211P.

Does MC10211P support mixed-voltage interfacing between TTL and ECL logic families?

MC10211P accepts TTL-level inputs (VIH ≥ –0.81 V, VIL ≤ –1.85 V at +25°C) and produces standard MECL 10K outputs (VOH ≈ –0.81 V, VOL ≈ –1.675 V). It does not include level-shifting circuitry; interface to TTL must use appropriate input biasing or external translators. The MC10211P itself operates strictly within ECL voltage domains and requires –5.2 V V_EE and +5 V V_CC supplies.

Can MC10211P outputs be directly wire-ORed with other ECL devices?

Yes - MC10211P outputs are designed for wire-OR operation: multiple AOUT/BOUT/COUT pins can be tied together with a single 50 Ω termination to –2.0 V. This is enabled by its active-low ECL output structure and current-mode logic design. The MC10211P datasheet explicitly states this capability for minimizing gate and package count in complex logic systems.

What is the maximum operating temperature range for MC10211P?

The MC10211P is characterized for operation from –30°C to +85°C, with full electrical specifications guaranteed across this range. At +85°C, propagation delay increases to 2.8 ns max, VOH degrades to –0.700 V min, and VOL rises to –1.615 V max. These limits ensure reliable timing and noise margin in industrial and telecom equipment enclosures without forced air cooling.

Is MC10211P pin-compatible with MC10211L or MC10211FN variants?

No - MC10211P (PDIP-16) shares logic functionality but differs physically from MC10211L (CDIP-16) and MC10211FN (PLCC-20). While all three share identical pin functions, the PLCC-20 variant has different pin numbering and spacing, and CDIP uses ceramic vs. plastic packaging. PCB layout must match the specific package; the MC10211P cannot be substituted without footprint revision.