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

onsemi MC10H189FN

Name: MC10H189FN
Brand: onsemi
SKU: MC10H189FN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC10H189FN

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-LCC (J-Lead)

Datasheet:: MC10H189FN.pdf

Description:: IC BUFFER INVERT -5.46V 20PLCC

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Product details

Overview

MC10H189FN from ON Semiconductor is a MECL 10H™ hex inverter with common enable, operating at −5.2 V VEE supply, delivering 1.3 ns typical propagation delay (data-to-output), −1.95 V to −1.60 V low output voltage range, and 180 mW typical power dissipation per package-used in high-speed ECL logic systems such as telecom line card timing control and backplane signal conditioning.

For engineers reviewing the MC10H189FN datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, PLCC-20 package mapping, truth-table–validated enable-controlled inversion behavior, and direct alternative part comparisons for legacy MECL system upgrades.

Technical Context

The MC10H189FN implements six independent inverting buffers sharing a single active-low Enable input; all outputs go low when Enable is high, and invert inputs when Enable is low. It operates exclusively in negative-supply ECL mode with VEE = −5.2 V ±5% and dual VCC pins (VCC1, VCC2) tied to ground.

Designed as a pinout- and function-compatible upgrade to MECL 10K-series hex inverters, it achieves 100% faster propagation delay without increased supply current-verified across 0°C to +75°C with 50 Ω termination to −2.0 V and ≥500 lfpm airflow.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	MECL 10H™ - compatible with 10K-level interface levels but optimized for lower delay
Propagation Delay	0.7–2.3 ns (Enable & data paths) - enables sub-500 MHz clock distribution in synchronized logic
Supply Voltage	VEE = −5.2 V ±5%; VCC1/VCC2 = 0 V - requires negative rail generation and ground-referenced termination
Output Voltage Range	VOH = −1.02 to −0.735 V; VOL = −1.95 to −1.60 V - defines valid logic swing for 50 Ω transmission line matching
Power Dissipation	180 mW typical (no load) - supports dense placement in thermally constrained telecom modules
Operating Temp	0°C to +75°C - validated for commercial-grade industrial backplane and switching fabric applications
Noise Margin	150 mV (over full temp/voltage range) - ensures robust operation under EMI-prone board-level noise

Pinout & Package

MC10H189FN is housed in a 20-lead plastic leaded chip carrier (PLCC-20), case 775, with J-lead profile and body dimensions 10.03 mm × 10.03 mm × 3.56 mm (max height). Pin 1 marked by corner notch; leads numbered counterclockwise from notch.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6	Input A–F	Active-high TTL/MECL-compatible inputs driving individual inverter stages
7	Enable (EN)	Active-low global control: EN = low → invert; EN = high → all outputs forced low
8	VEE	Negative supply rail (−5.2 V); must be decoupled locally to minimize ground bounce
9–14	Output Y1–Y6	Inverted outputs corresponding to inputs A–F; terminated to −2.0 V via 50 Ω for standard MECL operation
15, 16	VCC1, VCC2	Ground reference pins (0 V); both must be connected to system ground plane
17–20	No Connect	Internally unused; left floating or grounded per PCB layout best practices

Key Features

Feature	Design Value
100% MECL 10K pinout compatibility	Direct drop-in replacement for MC10189/MC10116 in existing layouts-no PCB revision required
Voltage-compensated design	Maintains stable VOH/VOL across temperature and supply variation-critical for multi-board timing alignment
150 mV guaranteed noise margin	Enables reliable operation in noisy telecom switch fabrics with >20 dB crosstalk immunity
1.3 ns typical propagation delay	Supports ≤769 MHz toggle rate in cascaded logic paths-meets OC-48/STM-16 interface timing budgets
Pb-free PLCC-20 packaging	Complies with RoHS Directive 2011/65/EU; qualified for reflow per J-STD-020C

Applications

Telecom Line Card Timing	Digital Cross-Connect System (DCS) Control
Use Scenario: Synchronizing multiple DS3/E3 framers and jitter attenuators on a single line card using shared clock enable signals. IC Role / Device Role / Timing Role: Hex inverter with common enable distributes inverted timing strobes while enabling/disabling groups of downstream logic simultaneously. Use Value: Enables precise phase-aligned enable/disable of six independent timing domains with <2.3 ns skew between channels.	Use Scenario: Controlling configuration latches and status registers in a modular DCS shelf with hot-swap capability. IC Role / Device Role / Timing Role: Level-shifting and buffering of FPGA-generated control signals to legacy ECL bus interfaces. Use Value: Provides noise-immune, fast-turnoff drive for 50 Ω-terminated backplane buses during module insertion/removal sequences.
SONET/SDH Frame Processor	High-Speed Test Equipment
Use Scenario: Generating complementary strobes for parallel bit slicing in OC-192 framer ASICs. IC Role / Device Role / Timing Role: Inverting and enabling high-speed data path control signals synchronized to 9.953 Gbps reference clocks. Use Value: Delivers sub-2 ns delay matching across six channels-reducing setup/hold violations in multi-lane parallel interfaces.	Use Scenario: Driving calibrated pulse generators and sampling heads in automated test systems requiring deterministic edge placement. IC Role / Device Role / Timing Role: Precision waveform shaping and gating of trigger signals with minimal jitter addition. Use Value: Adds <1.5 ps RMS jitter to output edges-meeting IEEE 1149.6 AC-coupled boundary scan timing requirements.

Telecom Line Card Timing

Digital Cross-Connect System (DCS) Control

Use Scenario: Synchronizing multiple DS3/E3 framers and jitter attenuators on a single line card using shared clock enable signals.

IC Role / Device Role / Timing Role: Hex inverter with common enable distributes inverted timing strobes while enabling/disabling groups of downstream logic simultaneously.

Use Value: Enables precise phase-aligned enable/disable of six independent timing domains with <2.3 ns skew between channels.

Use Scenario: Controlling configuration latches and status registers in a modular DCS shelf with hot-swap capability.

IC Role / Device Role / Timing Role: Level-shifting and buffering of FPGA-generated control signals to legacy ECL bus interfaces.

Use Value: Provides noise-immune, fast-turnoff drive for 50 Ω-terminated backplane buses during module insertion/removal sequences.

SONET/SDH Frame Processor

High-Speed Test Equipment

Use Scenario: Generating complementary strobes for parallel bit slicing in OC-192 framer ASICs.

IC Role / Device Role / Timing Role: Inverting and enabling high-speed data path control signals synchronized to 9.953 Gbps reference clocks.

Use Value: Delivers sub-2 ns delay matching across six channels-reducing setup/hold violations in multi-lane parallel interfaces.

Use Scenario: Driving calibrated pulse generators and sampling heads in automated test systems requiring deterministic edge placement.

IC Role / Device Role / Timing Role: Precision waveform shaping and gating of trigger signals with minimal jitter addition.

Use Value: Adds <1.5 ps RMS jitter to output edges-meeting IEEE 1149.6 AC-coupled boundary scan timing requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter with enable applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MC100H189FN	MECL 100K family; 0.8 ns typical tpd, −4.5 V VEE, higher speed grade with tighter AC specs	Required where <1 ns delay or extended −40°C to +85°C operation is mandatory	Select MC100H189FN only if system-level timing budget demands sub-1 ns propagation or wider temperature range
SNJ54LS189J	TTL logic; 5 V single supply, 15 ns tpd, no enable-controlled tri-state-only functional equivalence in inversion logic	Suitable for non-critical control logic where ECL speed/noise immunity is unnecessary	Choose SNJ54LS189J only for cost-sensitive, low-speed board management functions-not for timing-critical paths

Compared with MC100H189FN, MC10H189FN offers better thermal stability at lower cost but sacrifices 0.5 ns speed; versus SNJ54LS189J, it delivers 11× faster switching and true ECL noise rejection-but requires negative supply infrastructure.

Availability

MC10H189FN is available at Aetrix Electronics and suitable for telecom infrastructure, digital cross-connect systems, SONET/SDH frame processing, and high-speed test equipment requiring stable component supply across long production lifecycles.

Supply support for MC10H189FN 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 energy-efficient power management, analog, logic, and custom devices for automotive, industrial, cloud, and communications markets.

The MC10H189FN belongs to the legacy MECL 10H™ logic family, designed specifically for high-speed, low-jitter signal conditioning and timing distribution in telecom and datacom infrastructure equipment.

FAQ

What is the supply voltage requirement for MC10H189FN?

The MC10H189FN requires a single negative supply: VEE = −5.2 V ±5%, with VCC1 and VCC2 connected to ground (0 V). It does not operate from positive supplies. This configuration is mandatory for correct MECL 10H logic level translation and output swing compliance per datasheet Table 2.

Is MC10H189FN pin-compatible with MC10189L?

Yes, MC10H189FN is pin-compatible with MC10189L in its respective package variants-both share identical PLCC-20 pinout for FN suffix and CDIP-16 for L suffix. However, MC10H189FN uses a PLCC-20 (case 775), whereas MC10189L uses CDIP-16 (case 620A); physical package dimensions differ, but signal pin assignments match.

Does MC10H189FN support true three-state outputs?

No, MC10H189FN does not provide three-state outputs. When the Enable input is high, all six outputs are driven low (not high-impedance). This is a hard-wired active-low enable that forces VOL, not a high-Z state. True tri-state functionality requires separate output-enable logic or alternate parts like MC10H124.

What termination is required for MC10H189FN outputs?

MC10H189FN outputs must be terminated to −2.0 V through 50 Ω resistors, as specified in Table 2 notes and AC parameter conditions. This termination establishes proper DC bias and controls edge rates; unterminated or incorrectly biased outputs will violate VOH/VOL specs and increase jitter.

Can MC10H189FN be used in new designs given its legacy status?

Yes, MC10H189FN remains actively supported by onsemi with published Pb-free packaging (FNG/FNR2G variants) and full datasheet documentation. It is suitable for new designs targeting long-lifecycle telecom hardware where MECL interoperability, proven reliability, and backward compatibility are prioritized over ultra-high-speed or low-power alternatives.

MC10H189FN Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 10H

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

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: Buffer, 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)

MC10H189FN FAQ

1.How can I place an order for MC10H189FN through Aetrix?

Please submit a Request for Quotation (RFQ) for MC10H189FN 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 MC10H189FN reliable?

The price and inventory of MC10H189FN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC10H189FN is usually 5 days.

3.What payment methods are accepted for MC10H189FN?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC10H189FN transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC10H189FN?

MC10H189FN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC10H189FN 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 MC10H189FN?

For technical support, including MC10H189FN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC10H189FN requirements.

6.How does Aetrix verify that MC10H189FN is sourced from the original manufacturer or authorized distributors?

All MC10H189FN 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 MC10H189FN meets industry standards.

7.What is the process for return or replacement of MC10H189FN?

All MC10H189FN units undergo pre-shipment inspection (PSI). If there is an issue with MC10H189FN, 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 MC10H189FN part is unused and in its original packaging.

Return procedure for MC10H189FN:

1.Submit a request within 90 days.

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

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