onsemi MC10H104FN

Overview

MC10H104FN from ON Semiconductor is a quad 2-input MECL 10H™ AND gate with one gate providing both AND and NAND outputs, 1.0 ns typical propagation delay, −5.2 V VEE supply, and −1.02 V to −0.735 V VOH across 0°C to +75°C. It operates in high-speed digital systems requiring ECL-level logic interfacing, such as telecom line cards and test equipment timing control.

For engineers reviewing the MC10H104FN datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternative parts for high-speed logic design and legacy MECL system upgrades.

Technical Context

The MC10H104FN implements four independent 2-input AND gates using MECL 10H differential emitter-coupled logic, with one gate featuring complementary AND/NAND outputs. It maintains full pinout and functional compatibility with MECL 10K while delivering 100% faster propagation delay without increased supply current.

All gates operate with VEE = −5.2 V ±5%, VCC1 and VCC2 tied to ground (0 V), and require 50 Ω termination to −2.0 V. Input voltage thresholds range from −1.95 V (VIL max) to −0.735 V (VOH min) at +75°C, ensuring robust noise margin of 150 mV over full temperature range.

Key Specifications

Pinout & Package

MC10H104FN uses a 20-lead plastic leaded chip carrier (PLLC−20, Case 775), surface-mount package with gull-wing leads, 0.050″ pitch, and exposed thermal pad. Dimensions: 0.385″ × 0.385″ × 0.090″ (9.78 mm × 9.78 mm × 2.29 mm).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input AND gate applications.

Compared with MC10K104L and MC100H104FN, the MC10H104FN uniquely delivers MECL 10K pin compatibility with doubled speed and unchanged power-making it the optimal drop-in performance upgrade for commercial telecom and test gear without layout change.

Availability

MC10H104FN is available at Aetrix Electronics and suitable for telecom infrastructure, automated test equipment, radar signal processing, and avionics subsystems requiring stable component supply across extended product lifecycles.

Supply support for MC10H104FN 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 MC10H104FN belongs to the MECL 10H logic family, engineered specifically for high-speed digital systems requiring ECL-level performance with backward compatibility to legacy MECL 10K designs.

FAQ

What is the supply voltage requirement for MC10H104FN?

The MC10H104FN requires VEE = −5.2 V ±5% as the sole active supply rail; VCC1 and VCC2 pins must be connected to ground (0 V). This negative-supply configuration is fundamental to MECL 10H operation and differs from TTL or CMOS logic families. Proper decoupling near the VEE pin is essential to maintain noise margin and propagation delay stability.

Is MC10H104FN pin-compatible with MC10K104?

Yes, the MC10H104FN is a functional and pinout duplication of the MECL 10K family part, as explicitly stated in the datasheet. All 20-pin assignments-including VCC1, VCC2, VEE, inputs, outputs, and NC pins-match MC10K104L/P variants. This allows direct substitution without PCB modification, provided the −5.2 V supply and termination conditions are met.

What termination is required for MC10H104FN outputs?

MC10H104FN outputs must be terminated through a 50 Ω resistor to −2.0 V, as specified in the datasheet's test conditions. This termination establishes the correct common-mode voltage and differential swing (≈0.9 V) for interfacing with other MECL devices. Failure to apply proper termination results in degraded noise margin, increased propagation delay variation, and potential signal integrity failure.

Does MC10H104FN support both AND and NAND outputs simultaneously?

Only one of the four gates-the first gate (pins 2–3 inputs, pins 4–7 outputs)-provides both AND and NAND outputs, as shown in Figure 1 of the datasheet. The remaining three gates (pins 5–6, 9–10, 12–13 inputs; pins 11, 14–15, 16 outputs) are standard AND-only configurations. This dual-output capability is unique to Gate 1 and supports wired-OR logic or polarity flexibility in critical paths.

What is the maximum operating temperature for MC10H104FN?

The MC10H104FN is rated for an operating temperature range of 0°C to +75°C, as confirmed in Table 1 (Maximum Ratings) and Table 2 (Electrical Characteristics). This commercial-grade specification applies to the FN suffix PLLC−20 package. Operation outside this range is not guaranteed and may result in parameter shift or functional failure.