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

onsemi MC10H188FNR2G

Name: MC10H188FNR2G
Brand: onsemi
SKU: MC10H188FNR2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC10H188FNR2G

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-LCC (J-Lead)

Datasheet:: MC10H188FNR2G.pdf

Description:: IC BUF NON-INVERT -5.46V 20PLCC

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Product details

Overview

MC10H188FNR2G from ON Semiconductor is a high-speed MECL 10H™ hex buffer with common enable, delivering 1.3 ns typical propagation delay (data-to-output), −1.95 V to −1.60 V low output voltage across temperature, and 180 mW typical power dissipation per package at no load. It operates over 0°C to +75°C with −5.2 V ±5% VEE supply and is used in high-speed logic interfacing, ECL-based timing distribution, and digital signal conditioning in telecom line cards.

For engineers reviewing the MC10H188FNR2G datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, PLLC-20 package terminal mapping, MECL 10K compatibility confirmation, thermal derating data, and validated alternative options for legacy ECL system upgrades.

Technical Context

The MC10H188FNR2G implements six independent non-inverting buffers sharing a single active-low enable input (pin 12). When enabled (low), outputs replicate input states with MECL-compatible voltage levels; when disabled (high), all outputs force low. Its internal design uses voltage-compensated differential pairs to maintain noise margin of 150 mV across operating voltage and temperature.

It is a functional and pinout-duplicate of the MECL 10K family but achieves 100% faster propagation delay without increasing supply current-IE remains ≤46 mA across temperature. Outputs are designed for 50 Ω termination to −2.0 V, meeting AC specifications only under ≥500 lfpm airflow during testing.

Key Specifications

Parameter	Value and Actual Design Meaning
Propagation Delay	0.7–2.2 ns (enable/data path); enables sub-2 ns timing-critical fanout buffering in backplane interfaces
Output Voltage Range (VOL)	−1.95 V to −1.60 V (75°C); ensures robust low-state margin into 50 Ω loads at elevated temperature
Power Dissipation	180 mW typical per package (no load); supports dense ECL logic placement without forced cooling
Noise Margin	150 mV (guaranteed over full voltage/temperature range); critical for stable operation in noisy telecom environments
Supply Voltage (VEE)	−5.2 V ±5%; requires precision negative rail regulation for consistent switching thresholds
Operating Temperature	0°C to +75°C; qualified for commercial-grade telecom infrastructure equipment
Input Current (I_inL)	0.3–0.5 mA (low-level); defines base drive requirement for upstream ECL gate or driver stage

Pinout & Package

MC10H188FNR2G is packaged in a 20-lead plastic leaded chip carrier (PLLC-20, Case 775), surface-mount, lead-free (G suffix), with gull-wing leads and exposed thermal pad. Pin 1 is located at corner with notch or dot marking.

Pin/Terminal	Circuit Role	Design Meaning
1, 20	VCC1 / VCC2	Logic ground reference pins (0 V); must be tied to system ground plane with low-inductance connection
8	VEE	Negative supply (−5.2 V); primary current return path; requires local 0.1 µF bypass to VCC
12	ENABLE	Active-low global control; drives all six buffers simultaneously; TTL/MECL compatible threshold
1–6, 13–16	A–F IN / A–F OUT	Three-input pairs (A/B/C on left, D/E/F on right); each pair buffered non-invertingly with matched delay
7, 9, 10, 11, 14, 15, 17–19	No Connect	Internally unused; must remain unconnected-no tie-high/tie-low or capacitive loading permitted

Key Features

Feature	Design Value
MECL 10K pinout & function compatibility	Drop-in replacement for MC10K188 in existing layouts-no PCB redesign required
Voltage-compensated differential inputs	Maintains VIH/VIL window stability across −5.2 V supply variation and temperature drift
150 mV guaranteed noise margin	Enables reliable operation in high-noise environments like DSLAMs and packet switches without added filtering
1.3 ns typical propagation delay	Supports >500 Mbps data routing in serial link repeaters and clock distribution networks
Pb-free PLLC-20 packaging	RoHS-compliant surface-mount solution with JEDEC-standard thermal profile for reflow assembly

Applications

Telecom Line Card Signal Conditioning	Digital Backplane Fanout Buffering
Use Scenario: Level-shifting and amplifying ECL signals between ASICs and connector interfaces on OC-48/STM-16 line cards. IC Role / Device Role / Timing Role: Non-inverting hex buffer providing gain, drive strength, and noise immunity for differential clock/data paths. Use Value: 1.3 ns delay and 150 mV noise margin ensure jitter-free signal integrity across 12-inch FR4 traces at 622 MHz.	Use Scenario: Distributing synchronized clock and control signals from a central timing module to multiple DSPs and FPGAs on a multi-slot backplane. IC Role / Device Role / Timing Role: Low-skew, high-drive buffer replicating timing references with matched propagation across all six channels. Use Value: Identical t_pd spec across all outputs minimizes inter-channel skew (<0.5 ns), preserving setup/hold margins.
High-Speed Test Equipment Logic Interface	ECL-Based Protocol Analyzer Front-End
Use Scenario: Interfacing FPGA-based pattern generators to legacy ECL test fixtures requiring −1.8 V logic swing. IC Role / Device Role / Timing Role: Voltage-level translator and current booster enabling FPGA I/O to drive 50 Ω terminated ECL loads. Use Value: VOL = −1.95 V ensures full logic low compliance with ECL receiver thresholds even at 75°C ambient.	Use Scenario: Capturing and retiming parallel bus signals (e.g., VME64x, FASTBUS) in protocol analyzers before digitization. IC Role / Device Role / Timing Role: Synchronized sampling buffer isolating probe inputs from analyzer core logic to prevent loading-induced timing distortion. Use Value: Enable-controlled gating allows precise capture window activation without introducing metastability.

Telecom Line Card Signal Conditioning

Digital Backplane Fanout Buffering

Use Scenario: Level-shifting and amplifying ECL signals between ASICs and connector interfaces on OC-48/STM-16 line cards.

IC Role / Device Role / Timing Role: Non-inverting hex buffer providing gain, drive strength, and noise immunity for differential clock/data paths.

Use Value: 1.3 ns delay and 150 mV noise margin ensure jitter-free signal integrity across 12-inch FR4 traces at 622 MHz.

Use Scenario: Distributing synchronized clock and control signals from a central timing module to multiple DSPs and FPGAs on a multi-slot backplane.

IC Role / Device Role / Timing Role: Low-skew, high-drive buffer replicating timing references with matched propagation across all six channels.

Use Value: Identical t_pd spec across all outputs minimizes inter-channel skew (<0.5 ns), preserving setup/hold margins.

High-Speed Test Equipment Logic Interface

ECL-Based Protocol Analyzer Front-End

Use Scenario: Interfacing FPGA-based pattern generators to legacy ECL test fixtures requiring −1.8 V logic swing.

IC Role / Device Role / Timing Role: Voltage-level translator and current booster enabling FPGA I/O to drive 50 Ω terminated ECL loads.

Use Value: VOL = −1.95 V ensures full logic low compliance with ECL receiver thresholds even at 75°C ambient.

Use Scenario: Capturing and retiming parallel bus signals (e.g., VME64x, FASTBUS) in protocol analyzers before digitization.

IC Role / Device Role / Timing Role: Synchronized sampling buffer isolating probe inputs from analyzer core logic to prevent loading-induced timing distortion.

Use Value: Enable-controlled gating allows precise capture window activation without introducing metastability.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MC100H188FNG	Higher speed grade: 0.9 ns max t_pd, −4.5 V to −5.5 V VEE range, wider temp range (−40°C to +85°C)	Required for industrial or extended-temp telecom gear; consumes ~10% more supply current	Select MC100H188FNG when operating outside 0°C–75°C or needing tighter delay tolerance
SN65EL188D	TI's pin-compatible ECL buffer; 1.1 ns t_pd, 3.3 V VCC referenced (not VEE), different input threshold	Requires level-shifter circuitry for legacy −5.2 V systems; not drop-in for MC10H188FNR2G	Choose SN65EL188D only in new designs using 3.3 V–referenced ECL families; not suitable for direct replacement

Compared with MC10H188FNR2G, MC100H188FNG offers extended temperature and tighter delay specs at higher cost, while SN65EL188D shifts to a different voltage-reference architecture-neither is pin- or bias-compatible without schematic changes.

Availability

MC10H188FNR2G is available at Aetrix Electronics and suitable for telecom line card manufacturing, high-speed test equipment production, and ECL-based protocol analyzer development requiring stable component supply and long-term lifecycle support.

Supply support for MC10H188FNR2G 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, sensor, and logic solutions for automotive, industrial, and communications markets.

The MC10H188FNR2G belongs to ON Semiconductor's legacy MECL 10H™ logic family, engineered for high-speed, low-jitter signal distribution in telecom infrastructure and test instrumentation where ECL performance is mandatory.

FAQ

What is the recommended termination for MC10H188FNR2G outputs?

MC10H188FNR2G outputs must be terminated with a 50 Ω resistor to −2.0 V, as specified in the datasheet's AC test conditions. This termination ensures correct voltage swing, rise/fall time, and propagation delay performance. Using other terminations (e.g., open-drain, Thevenin, or AC-coupled) invalidates guaranteed AC parameters and may cause signal integrity issues in high-speed applications.

Does MC10H188FNR2G support mixed-voltage interfacing with TTL or CMOS devices?

No-MC10H188FNR2G is strictly an MECL device operating from −5.2 V VEE and 0 V VCC. Its input thresholds (VIH ≈ −1.1 V, VIL ≈ −1.7 V) and output swings (−1.8 V nominal) are incompatible with TTL or CMOS logic levels. Interfacing requires dedicated level translators such as MC10H604 or discrete resistor networks with appropriate biasing.

Is the PLLC-20 package of MC10H188FNR2G RoHS-compliant?

Yes-MC10H188FNR2G carries the "G" suffix, indicating it is manufactured in a Pb-free PLLC-20 package compliant with EU RoHS Directive 2011/65/EU. The device meets J-STD-020 moisture sensitivity level (MSL) 3 and is qualified for standard SnPb and lead-free reflow profiles per JEDEC J-STD-020.

How does the ENABLE pin function in MC10H188FNR2G?

The ENABLE pin (pin 12) is active-low: when low, all six buffers pass input states to outputs; when high, all outputs are forced low regardless of input state. This behavior is synchronous with the internal ECL gate structure and introduces no additional delay beyond the specified enable-to-output propagation time (0.7–2.2 ns).

Can MC10H188FNR2G operate reliably at 85°C ambient temperature?

No-MC10H188FNR2G is rated for 0°C to +75°C operating temperature only. At 85°C, parameters such as VOL, VOH, and t_pd exceed guaranteed limits, and reliability degrades significantly. For 85°C operation, consider MC100H188FNG, which is specified from −40°C to +85°C and validated for extended thermal environments.

MC10H188FNR2G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 10H

Package/Case:: 20-LCC (J-Lead)

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:: 20-PLCC (9x9)

MC10H188FNR2G FAQ

1.How can I place an order for MC10H188FNR2G through Aetrix?

Please submit a Request for Quotation (RFQ) for MC10H188FNR2G 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 MC10H188FNR2G reliable?

The price and inventory of MC10H188FNR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC10H188FNR2G is usually 5 days.

3.What payment methods are accepted for MC10H188FNR2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC10H188FNR2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC10H188FNR2G?

MC10H188FNR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC10H188FNR2G 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 MC10H188FNR2G?

For technical support, including MC10H188FNR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC10H188FNR2G requirements.

6.How does Aetrix verify that MC10H188FNR2G is sourced from the original manufacturer or authorized distributors?

All MC10H188FNR2G 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 MC10H188FNR2G meets industry standards.

7.What is the process for return or replacement of MC10H188FNR2G?

All MC10H188FNR2G units undergo pre-shipment inspection (PSI). If there is an issue with MC10H188FNR2G, 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 MC10H188FNR2G part is unused and in its original packaging.

Return procedure for MC10H188FNR2G:

1.Submit a request within 90 days.

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

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