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

onsemi MC10H188M

Name: MC10H188M
Brand: onsemi
SKU: MC10H188M
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC10H188M

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: MC10H188M.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MC10H188M 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 180 mW typical power dissipation per package. 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 MC10H188M datasheet, pinout, applications, or equivalent options, this part supports precise timing-critical buffering where MECL 10K compatibility, sub-2 ns propagation, and −1.95 V to −0.735 V output voltage swing are design requirements.

Technical Context

The MC10H188M implements six independent non-inverting buffers sharing a single active-low enable input (pin 1), with all outputs forced low when enabled. Its MECL 10H architecture uses emitter-coupled differential pairs biased at −5.2 V VEE, enabling rail-to-rail logic transitions without saturation delay.

It operates across 0°C to +75°C ambient, requires 50 Ω termination to −2.0 V on all outputs, and maintains 150 mV noise margin over full temperature and voltage range - critical for stable operation in noisy backplane environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Propagation Delay	1.3 ns typical (data-to-output); enables ≤769 MHz clock domain interfacing
Supply Voltage	VEE = −5.2 V ±5%; requires precision negative bias supply
Output Voltage Swing	VOL = −1.95 V, VOH = −0.735 V (75°C); defines valid MECL logic thresholds
Power Dissipation	180 mW typical (no load); dictates thermal management in dense PCB layouts
Noise Margin	150 mV over full temp/voltage range; ensures robustness against crosstalk in multi-channel systems
Input Current	IinL = 0.3–0.5 mA (low), IinH = −310 µA (high); determines drive strength of preceding stage
Operating Temp	0°C to +75°C; validated for commercial-grade telecom infrastructure use

Pinout & Package

MC10H188M is packaged in a 16-pin SOEIAJ (Small Outline EIAJ) surface-mount package (Case 966), measuring 9.90 mm × 5.45 mm × 1.50 mm, with gull-wing leads and Pb-free finish.

Pin/Terminal	Circuit Role	Design Meaning
1	Enable (active-low)	Global control: pulls all 6 outputs low when high; must be terminated to VEE or driven actively
2–7	Inputs A–F	Differential-compatible inputs accepting MECL logic levels; high-impedance, current-sinking
8	VEE	Negative supply rail (−5.2 V); primary reference for all internal biasing and output swing
9–14	Outputs AOUT–FOUT	Emitter-follower outputs with 50 Ω source impedance; require external 50 Ω to −2.0 V termination
15	VCC2	Unused positive supply pin; must be left open or tied to VEE per datasheet guidance
16	VCC1	Unused positive supply pin; same handling as VCC2 - not connected in standard operation

Key Features

Feature	Design Value
MECL 10K pinout and functional compatibility	Direct drop-in replacement for MC10K188 in existing designs without layout change
Voltage-compensated internal bias	Maintains stable switching thresholds across −5.2 V supply variation and temperature drift
100% propagation delay improvement vs. 10K	Reduces cumulative skew in multi-stage ECL fanout trees by >1 ns per stage
150 mV guaranteed noise margin	Enables reliable operation in high-density backplanes with >20 dB crosstalk coupling
Pb-free SOEIAJ-16 packaging	Complies with RoHS Directive 2011/65/EU; compatible with lead-free reflow profiles (J-STD-020)

Applications

Telecom Line Card Signal Routing	High-Speed Test Equipment Drivers
Use Scenario: Repeating and distributing parallel ECL data streams across multiple ASICs on a 10 Gbps line card. IC Role / Device Role / Timing Role: Hex buffer providing matched-delay, low-skew signal distribution with common enable for synchronized reset. Use Value: 1.3 ns max propagation delay minimizes inter-lane skew; 150 mV noise margin prevents bit errors in electrically congested card stacks.	Use Scenario: Driving multiple channels of high-frequency pattern generators in automated test systems. IC Role / Device Role / Timing Role: Fanout buffer replicating clock/data signals to 6 DUT interfaces while preserving edge fidelity. Use Value: Sub-2 ns rise/fall times (0.7–2.4 ns) maintain <10% timing jitter at 500 MHz; SOEIAJ package enables compact channel density.
Radar Pulse Timing Distribution	Digital Oscilloscope Front-End Conditioning
Use Scenario: Distributing synchronized trigger and gate signals across phased-array radar receiver modules. IC Role / Device Role / Timing Role: Low-jitter buffer isolating master timing controller from distributed loads with enable-controlled shutdown. Use Value: Active-low enable allows rapid blanking of all outputs during calibration cycles; −5.2 V operation matches legacy radar subsystem supplies.	Use Scenario: Level-shifting and conditioning fast analog-to-digital converter control signals in real-time sampling scopes. IC Role / Device Role / Timing Role: Signal conditioner converting TTL/CMOS logic to MECL-compatible levels for high-speed ADC timing sequencers. Use Value: MECL 10K compatibility ensures seamless integration with existing scope timing ICs; 180 mW dissipation simplifies thermal design in sealed front-end enclosures.

Telecom Line Card Signal Routing

High-Speed Test Equipment Drivers

Use Scenario: Repeating and distributing parallel ECL data streams across multiple ASICs on a 10 Gbps line card.

IC Role / Device Role / Timing Role: Hex buffer providing matched-delay, low-skew signal distribution with common enable for synchronized reset.

Use Value: 1.3 ns max propagation delay minimizes inter-lane skew; 150 mV noise margin prevents bit errors in electrically congested card stacks.

Use Scenario: Driving multiple channels of high-frequency pattern generators in automated test systems.

IC Role / Device Role / Timing Role: Fanout buffer replicating clock/data signals to 6 DUT interfaces while preserving edge fidelity.

Use Value: Sub-2 ns rise/fall times (0.7–2.4 ns) maintain <10% timing jitter at 500 MHz; SOEIAJ package enables compact channel density.

Radar Pulse Timing Distribution

Digital Oscilloscope Front-End Conditioning

Use Scenario: Distributing synchronized trigger and gate signals across phased-array radar receiver modules.

IC Role / Device Role / Timing Role: Low-jitter buffer isolating master timing controller from distributed loads with enable-controlled shutdown.

Use Value: Active-low enable allows rapid blanking of all outputs during calibration cycles; −5.2 V operation matches legacy radar subsystem supplies.

Use Scenario: Level-shifting and conditioning fast analog-to-digital converter control signals in real-time sampling scopes.

IC Role / Device Role / Timing Role: Signal conditioner converting TTL/CMOS logic to MECL-compatible levels for high-speed ADC timing sequencers.

Use Value: MECL 10K compatibility ensures seamless integration with existing scope timing ICs; 180 mW dissipation simplifies thermal design in sealed front-end enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MC100H188M	Higher-speed variant: 0.75 ns typical tpd, −4.5 V to −5.5 V VEE range, wider temp range (−40°C to +85°C)	Suitable for extended-temperature industrial or military systems requiring tighter timing budgets	Select MC100H188M when operating below 0°C or above +75°C, or when <1 ns propagation is required
MC10H188P	Same electrical specs but in PDIP-16 through-hole package (Case 648); no Pb-free option in base ordering	Used in prototyping, legacy repair, or through-hole production where SMT is unavailable	Choose MC10H188P for hand-soldered evaluation or backward-compatible board repairs

Compared with MC10H188M, MC100H188M offers broader temperature support and faster speed at higher cost and power, while MC10H188P provides identical logic performance in a through-hole form factor - making MC10H188M the optimal choice for RoHS-compliant, high-density SMT telecom and test applications.

Availability

MC10H188M is available at Aetrix Electronics and suitable for telecom infrastructure, automated test equipment, radar timing systems, and digital oscilloscope designs requiring stable component supply and long-term manufacturability.

Supply support for MC10H188M 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 onsemi) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MC10H188M belongs to the MECL 10H™ family - engineered specifically for high-speed, low-skew digital signal distribution in ECL-based telecom, instrumentation, and defense systems where nanosecond-level timing integrity is mandatory.

FAQ

What is the recommended termination for MC10H188M outputs?

MC10H188M outputs must be terminated with a 50 Ω resistor to −2.0 V, as specified in the datasheet's AC parameter test conditions. This termination establishes correct DC bias points and ensures clean signal edges. Failure to apply this termination results in undefined logic levels, increased propagation delay variation, and degraded noise immunity. The MC10H188M itself does not include internal termination resistors.

Does MC10H188M support mixed-voltage interfacing with TTL or CMOS logic?

No, MC10H188M is a dedicated MECL device operating at −5.2 V VEE and producing outputs between −1.95 V and −0.735 V. Direct interface with TTL or CMOS requires level-shifting circuitry such as the MC10H605 translator or discrete resistor networks. The MC10H188M has no internal translation capability and will not reliably drive or accept non-MECL logic levels.

What is the function of pins 15 (VCC2) and 16 (VCC1) on MC10H188M?

Pins 15 and 16 are unused positive supply terminals inherited from the MECL 10K footprint. Per the MC10H188M datasheet, they must remain unconnected (open) or be tied to VEE (−5.2 V); connecting them to any positive voltage risks device damage. These pins exist solely for mechanical and pinout compatibility with older 10K devices and serve no active circuit function in the MC10H188M.

Is MC10H188M pin-compatible with MC10K188 in all packages?

Yes - the MC10H188M is explicitly designed as a functional and pinout duplication of the MC10K188, including identical pin numbering and assignment across SOEIAJ-16, PDIP-16, CDIP-16, and PLLC-20 packages. This allows direct substitution in existing layouts without modification, provided the −5.2 V supply and −2.0 V termination are implemented per MC10H188M specifications.

What is the maximum allowable surge current for MC10H188M outputs?

The MC10H188M output current rating specifies a continuous limit of 50 mA and a surge limit of 100 mA per output, as defined in Table 1 (Maximum Ratings). Exceeding 100 mA even momentarily may cause permanent degradation of output transistor gain or bonding wire integrity. Designers must ensure termination networks and downstream loads keep peak current within this surge limit under all operating conditions, including hot-plug transients.

MC10H188M Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 10H

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

Packaging:: Tube

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

MC10H188M FAQ

1.How can I place an order for MC10H188M through Aetrix?

Please submit a Request for Quotation (RFQ) for MC10H188M 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 MC10H188M reliable?

The price and inventory of MC10H188M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC10H188M is usually 5 days.

3.What payment methods are accepted for MC10H188M?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC10H188M transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC10H188M?

MC10H188M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC10H188M 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 MC10H188M?

For technical support, including MC10H188M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC10H188M requirements.

6.How does Aetrix verify that MC10H188M is sourced from the original manufacturer or authorized distributors?

All MC10H188M 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 MC10H188M meets industry standards.

7.What is the process for return or replacement of MC10H188M?

All MC10H188M units undergo pre-shipment inspection (PSI). If there is an issue with MC10H188M, 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 MC10H188M part is unused and in its original packaging.

Return procedure for MC10H188M:

1.Submit a request within 90 days.

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

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