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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

onsemi MC10H188MEL

Name: MC10H188MEL
Brand: onsemi
SKU: MC10H188MEL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC10H188MEL

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 16-SOIC (0.209", 5.30mm Width)

Datasheet:: MC10H188MEL.pdf

Description:: IC BUF NON-INVRT -5.46V 16SOEIAJ

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MC10H188MEL from ON Semiconductor is a high-speed MECL 10H™ hex buffer with common enable, delivering 1.3 ns typical propagation delay, −5.2 V VEE operation, and −1.02 V to −0.735 V VOH across 0–75°C. It functions as a level-shifting, noise-immune signal repeater in ECL logic systems, used in high-frequency data routing for telecom line cards and test equipment.

For engineers reviewing the MC10H188MEL datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, SOEIAJ-16 package details, truth table behavior, thermal derating guidance, and direct alternatives compatible with MECL 10K system designs.

Technical Context

The MC10H188MEL implements six independent non-inverting buffers sharing a single active-low enable input: when EN = LOW, outputs follow inputs; when EN = HIGH, all outputs force HIGH (−0.84 V min at 25°C). Its voltage-compensated design maintains stable VIH/VIL thresholds (−1.17 V to −0.735 V) across temperature and supply variation.

Designed for termination into −2.0 V via 50 Ω, it draws 42–46 mA ICC (VEE current), delivers 50 mA continuous output sink/source capability, and achieves 0.7–2.2 ns propagation delay over full operating range - matching MECL 10K timing while halving delay versus legacy equivalents.

Key Specifications

Parameter	Value and Actual Design Meaning
Propagation Delay	0.7–2.2 ns (data-to-output, enables fast 500+ MHz clock/data distribution)
Supply Voltage (VEE)	−5.2 V ±5% (requires negative rail; no VCC connection needed)
VOH / VOL	−1.02 V to −0.735 V / −1.95 V to −1.60 V (ensures >150 mV noise margin vs. 10K family)
Input Voltage Range	VIH = −1.17 V to −0.735 V; VIL = −1.95 V to −1.45 V (guaranteed switching with 10K-compatible drivers)
Operating Temp	0°C to +75°C (industrial-grade thermal range; no derating required up to 75°C)
Power Dissipation	180 mW typical per package (no load; enables dense placement without forced airflow)
Output Current	±50 mA continuous (supports fanout ≥10 into 50 Ω terminated lines)

Pinout & Package

MC10H188MEL is packaged in SOEIAJ-16 (Case 966), a 16-pin surface-mount gull-wing package measuring 9.90 × 5.10 mm with 1.27 mm pitch. Pin 1 is marked by a beveled corner; leads are Pb-free compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 16	VCC1 / VCC2	No-connect pins; internally unused (MECL 10H uses only VEE rail)
8	VEE	Main −5.2 V supply return; must be low-inductance decoupled
2–7, 9–14	A–F IN / A–F OUT	Three pairs of buffered I/O: AIN→AOUT, BIN→BOUT, etc. Non-inverting path
15	EN (Enable)	Active-low control: EN = LOW enables buffering; EN = HIGH forces all outputs HIGH

Key Features

Feature	Design Value
MECL 10K pinout & functional compatibility	Drop-in replacement for MC10K188 without PCB or logic redesign
1.3 ns typical propagation delay	Enables sub-1 ns timing margins in 400+ Mbps serial data paths
150 mV guaranteed noise margin	Maintains reliable operation under 50 mV coupled noise or ground bounce
Voltage-compensated input thresholds	VIH/VIL shift <±20 mV over temp/voltage - eliminates external biasing
Pb-free SOEIAJ-16 packaging	RoHS-compliant; qualified for reflow per J-STD-020C (MSL3)

Applications

Digital Test Equipment	Telecom Line Cards
Use Scenario: High-speed pattern generators driving multiple DUT inputs simultaneously. IC Role / Device Role / Timing Role: Signal fanout buffer with synchronized enable control for parallel stimulus delivery. Use Value: 1.3 ns delay matching ensures <±50 ps skew across six channels at 300 MHz.	Use Scenario: Re-timing and level-shifting of ECL clock/data between ASICs on backplane interfaces. IC Role / Device Role / Timing Role: Noise-immune repeater isolating sensitive receiver inputs from noisy transmitter sections. Use Value: 150 mV noise margin prevents false triggering in 10 Gbps SerDes reference clock distribution.
Radar Signal Processing	High-Performance Computing Backplanes
Use Scenario: Distribution of time-critical trigger signals across FPGA-based beamforming modules. IC Role / Device Role / Timing Role: Low-skew, enable-gated buffer synchronizing ADC sampling clocks across 6-channel arrays. Use Value: Sub-2 ns max delay variation ensures <10 ps inter-channel jitter accumulation over 10 cm trace lengths.	Use Scenario: Clock forwarding from central PLL to distributed memory controllers in multi-socket servers. IC Role / Device Role / Timing Role: Robust ECL-level repeater maintaining signal integrity across long, unterminated traces. Use Value: −1.95 V to −1.60 V VOL swing ensures clean logic transitions even with 200 mV ground shift between slots.

Digital Test Equipment

Telecom Line Cards

Use Scenario: High-speed pattern generators driving multiple DUT inputs simultaneously.

IC Role / Device Role / Timing Role: Signal fanout buffer with synchronized enable control for parallel stimulus delivery.

Use Value: 1.3 ns delay matching ensures <±50 ps skew across six channels at 300 MHz.

Use Scenario: Re-timing and level-shifting of ECL clock/data between ASICs on backplane interfaces.

IC Role / Device Role / Timing Role: Noise-immune repeater isolating sensitive receiver inputs from noisy transmitter sections.

Use Value: 150 mV noise margin prevents false triggering in 10 Gbps SerDes reference clock distribution.

Radar Signal Processing

High-Performance Computing Backplanes

Use Scenario: Distribution of time-critical trigger signals across FPGA-based beamforming modules.

IC Role / Device Role / Timing Role: Low-skew, enable-gated buffer synchronizing ADC sampling clocks across 6-channel arrays.

Use Value: Sub-2 ns max delay variation ensures <10 ps inter-channel jitter accumulation over 10 cm trace lengths.

Use Scenario: Clock forwarding from central PLL to distributed memory controllers in multi-socket servers.

IC Role / Device Role / Timing Role: Robust ECL-level repeater maintaining signal integrity across long, unterminated traces.

Use Value: −1.95 V to −1.60 V VOL swing ensures clean logic transitions even with 200 mV ground shift between slots.

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MC100H188FN	PLLC-20 package; identical AC/DC specs but higher thermal resistance (θJA = 50°C/W vs. SOEIAJ's 42°C/W)	Preferred for prototyping on breadboards or sockets; less suitable for high-density SMT layouts	Select when socket-based validation or manual rework is required
SN65EPT23D	LVDS interface; 3.3 V supply; 2.6 ns delay; not MECL-compatible	Used in modern low-power systems replacing ECL with LVDS; requires level translation and layout changes	Choose only for new designs abandoning MECL infrastructure entirely

Compared with MC100H188FN, MC10H188MEL offers better thermal performance in compact SMT layouts; compared with SN65EPT23D, it preserves full MECL 10K interoperability without signal conditioning or voltage translation.

Availability

MC10H188MEL is available at Aetrix Electronics and suitable for digital test equipment, telecom line cards, radar signal processing, and high-performance computing backplanes requiring stable component supply and long-term obsolescence management.

Supply support for MC10H188MEL 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 focused on energy-efficient electronics, delivering power management, analog, sensor, and logic solutions for automotive, industrial, and communications markets.

The MC10H188MEL belongs to the MECL 10H™ logic family, engineered specifically for high-speed, noise-resilient digital systems where sub-nanosecond timing, deterministic enable control, and backward compatibility with MECL 10K infrastructure are mandatory.

FAQ

What is the supply configuration required for MC10H188MEL?

The MC10H188MEL operates exclusively from a single −5.2 V VEE supply (pin 8); VCC1 (pin 1) and VCC2 (pin 16) are no-connect terminals. No positive rail is used or required. Decoupling capacitors (e.g., 0.1 µF ceramic + 10 µF tantalum) must be placed within 5 mm of VEE and ground to maintain noise margin and delay stability.

Does MC10H188MEL support true TTL or CMOS interfacing?

No - MC10H188MEL is strictly an MECL device with negative-voltage logic levels (VIH ≈ −1.0 V, VIL ≈ −1.7 V). Direct connection to TTL or CMOS requires level-shifting circuitry such as the MC10H605 or discrete resistor networks. Its inputs are not 5 V tolerant and will be damaged if driven above VEE.

How does the enable function behave in MC10H188MEL?

In MC10H188MEL, the enable input (pin 15) is active-low: when EN = LOW (≤ −1.45 V), outputs mirror their respective inputs; when EN = HIGH (≥ −0.735 V), all six outputs drive HIGH (≈ −0.84 V). This enables synchronous gating of data buses without additional logic, critical for test pattern masking and clock domain isolation.

What is the maximum recommended trace length for MC10H188MEL outputs?

For impedance-controlled 50 Ω microstrip traces terminated to −2.0 V, MC10H188MEL supports ≤15 cm trace length before significant edge degradation occurs. Beyond 10 cm, controlled-impedance routing and point-of-load termination are mandatory to preserve rise/fall times (0.7–2.4 ns) and prevent reflections that degrade the 150 mV noise margin.

Is MC10H188MEL pin-compatible with MC10K188P?

Yes - MC10H188MEL shares identical pinout, logic function, and DC specifications with MC10K188P (PDIP-16), enabling direct substitution in existing MECL 10K designs. However, MC10H188MEL's SOEIAJ-16 package requires re-layout for SMT assembly, whereas MC10K188P uses through-hole PDIP.

MC10H188MEL Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 10H

Package/Case:: 16-SOIC (0.209", 5.30mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 6

Input Type:: -

Output Type:: Push-Pull

Current - Output High, Low:: -

Voltage - Supply:: -4.94V ~ -5.46V

Operating Temperature:: 0°C ~ 75°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOEIAJ

MC10H188MEL FAQ

1.How can I place an order for MC10H188MEL through Aetrix?

Please submit a Request for Quotation (RFQ) for MC10H188MEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MC10H188MEL reliable?

The price and inventory of MC10H188MEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC10H188MEL is usually 5 days.

3.What payment methods are accepted for MC10H188MEL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC10H188MEL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC10H188MEL?

MC10H188MEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC10H188MEL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MC10H188MEL?

For technical support, including MC10H188MEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC10H188MEL requirements.

6.How does Aetrix verify that MC10H188MEL is sourced from the original manufacturer or authorized distributors?

All MC10H188MEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC10H188MEL meets industry standards.

7.What is the process for return or replacement of MC10H188MEL?

All MC10H188MEL units undergo pre-shipment inspection (PSI). If there is an issue with MC10H188MEL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MC10H188MEL part is unused and in its original packaging.

Return procedure for MC10H188MEL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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