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onsemi MC74LCX86DR2
- Part No.:
- MC74LCX86DR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74LCX86DR2.pdf
- Description:
- IC GATE XOR 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,395
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Product details
Overview
MC74LCX86DR2 from onsemi is a low-voltage CMOS quad 2-input XOR gate operating from 1.65 V to 5.5 V supply, featuring 5.0 V-tolerant inputs, 24 mA balanced output drive at 3.0 V, near-zero static supply current (10 µA), and SOIC-14 packaging. It enables logic-level translation and noise-immune signal comparison in mixed-voltage digital systems such as industrial I/O controllers and embedded interface bridges.
For engineers reviewing the MC74LCX86DR2 datasheet, pinout, applications, or equivalent options, key selection criteria include its 5 V-tolerant input capability, propagation delay of 4.5 ns at 5 V, LVTTL/LVCMOS compatibility, and SOIC-14 footprint for legacy board compatibility and space-constrained designs.
Technical Context
The MC74LCX86DR2 implements four independent XOR logic functions with TTL-compatible inputs and outputs, supporting bidirectional voltage-level translation between 1.65–3.3 V and 5.0 V domains. Its high-impedance inputs reduce loading on upstream drivers, while its 24 mA sink/source capability ensures robust driving of downstream loads under 3.0 V operation.
It operates across −40 °C to +125 °C with latchup immunity exceeding 100 mA and ESD protection >2000 V (HBM). The device maintains functional integrity with VI up to 5.5 V and supports tri-state behavior only via external gating - no internal enable control is present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports single-supply operation across LVCMOS, LVTTL, and mixed-voltage system rails |
| Input Voltage Tolerance | Up to 5.5 V - allows direct interfacing with 5 V TTL outputs without level shifters |
| Propagation Delay | 4.5 ns max at VCC = 4.5–5.5 V - enables reliable timing in 200+ MHz clock domain edge detection |
| Output Drive | ±24 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines or multiple 74LVC inputs |
| Quiescent Current | 10 µA max - minimizes standby power in battery-backed or energy-sensitive applications |
| Operating Temperature | −40 °C to +125 °C - qualified for industrial and extended-temperature embedded control environments |
| Input Capacitance | 7 pF typical - limits high-frequency loading and preserves signal integrity on fast-switching nodes |
Pinout & Package
MC74LCX86DR2 is packaged in a 14-lead SOIC (Small Outline Integrated Circuit) per case 751A, with standard 1.27 mm pitch and 8.75 mm × 3.9 mm body dimensions. Pin 1 is marked by a notch or beveled corner; pin numbering follows counter-clockwise convention from top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 10, 11, 12, 13 | Data Inputs (A0/B0, A1/B1, A2/B2, A3/B3) | Eight dedicated XOR operand inputs - each pair feeds one of four independent gates |
| 3, 6, 8, 11 | Outputs (O0, O1, O2, O3) | Four buffered XOR results - non-inverting, push-pull, TTL/LVCMOS-compatible |
| 7 | GND | Ground reference for all logic and power domains - must be low-impedance connection |
| 14 | VCC | Primary supply rail - powers all four gates and defines logic threshold levels |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables seamless integration into mixed-voltage systems without external level-shifting components |
| 24 mA output drive @ 3.0 V | Supports fan-out of ≥10 LVTTL loads or direct termination of 50 Ω PCB traces |
| 10 µA quiescent ICC | Reduces system-level leakage current in always-on monitoring circuits and sleep-mode subsystems |
| Latchup immunity >100 mA | Ensures robustness against transient overvoltage events in noisy industrial environments |
| Pb-free, RoHS-compliant package | Meets global environmental compliance requirements for commercial and industrial manufacturing |
Applications
| Industrial PLC I/O Expansion | Embedded Microcontroller Bus Interface |
|---|---|
Use Scenario: Isolating and translating status signals between 3.3 V microcontrollers and 5 V field sensors in programmable logic controllers. IC Role / Device Role / Timing Role: XOR gate performing parity check and signal inversion for fault-detection logic in real-time I/O modules. Use Value: 5 V-tolerant inputs eliminate level-shifter ICs, reducing BOM count and board area in DIN-rail mounted controllers. | Use Scenario: Synchronizing handshake signals between dual-core SoCs operating at different voltage rails in automotive infotainment gateways. IC Role / Device Role / Timing Role: Logic-level translator and signal combiner enabling cross-domain interrupt arbitration and status flag generation. Use Value: Sub-5 ns propagation delay ensures deterministic timing alignment between asynchronous processor domains. |
| Digital Power Supply Monitoring | Legacy System Signal Conditioning |
Use Scenario: Comparing reference and feedback voltages digitized by ADCs in digitally controlled DC-DC converters. IC Role / Device Role / Timing Role: XOR-based comparator detecting mismatch between redundant voltage sense paths for fault reporting. Use Value: Near-zero static current avoids loading precision voltage references during continuous monitoring cycles. | Use Scenario: Adapting legacy 5 V TTL control signals to modern 3.3 V FPGA I/O banks in test equipment upgrades. IC Role / Device Role / Timing Role: Bidirectional logic translator preserving signal polarity and timing integrity across voltage domains. Use Value: SOIC-14 footprint matches original design layout, enabling drop-in replacement without PCB rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar XOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC86APWR | Lower VCC range (1.65–3.6 V), no 5 V input tolerance, 32 mA drive @ 3.3 V | Suitable only for pure 3.3 V systems; requires external level shifters for 5 V interfaces | Select when full 5 V tolerance is unnecessary and higher output drive is prioritized |
| 74AHC86D | Wider VCC range (2.0–5.5 V), 5 V tolerant, but slower (7.0 ns @ 5 V), lower drive (8 mA @ 3.3 V) | Better suited for cost-sensitive, lower-speed applications where ESD/latchup margins are less critical | Select when budget constraints outweigh speed and drive requirements |
Compared with SN74LVC86APWR and 74AHC86D, the MC74LCX86DR2 uniquely balances 5 V input tolerance, sub-5 ns speed at 5 V, and 24 mA drive in a legacy-compatible SOIC-14 package - making it optimal for industrial retrofits and mixed-voltage signal conditioning where reliability and footprint compatibility are essential.
Availability
MC74LCX86DR2 is available at Aetrix Electronics and suitable for industrial PLCs, embedded bus interfaces, and digital power supply monitoring requiring stable component supply and long-term production continuity.
Supply support for MC74LCX86DR2 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The MC74LCX86DR2 belongs to the LCX low-voltage logic family, designed specifically for high-speed, low-power interoperability between 3.3 V and 5 V digital systems in harsh industrial and extended-temperature environments.
FAQ
What is the maximum input voltage rating for MC74LCX86DR2?
The MC74LCX86DR2 supports DC input voltages up to 5.5 V, enabling safe interfacing with standard 5.0 V TTL outputs without external clamping or level-shifting circuitry. This specification is explicitly defined in the Absolute Maximum Ratings table and verified across temperature ranges from −40 °C to +125 °C. Exceeding 5.5 V may damage the input protection diodes or compromise latchup immunity.
Does MC74LCX86DR2 support tri-state outputs?
No, the MC74LCX86DR2 does not feature tri-state outputs. All four XOR outputs are push-pull and permanently enabled - there is no output enable (OE) pin or internal control mechanism for high-impedance states. If bus-sharing or dynamic output disabling is required, external gating or a different logic family (e.g., 74LCX125) must be used alongside MC74LCX86DR2.
What is the propagation delay of MC74LCX86DR2 at 3.3 V operation?
At VCC = 3.0–3.6 V, the MC74LCX86DR2 exhibits a maximum propagation delay (tPLH/tPHL) of 6.5 ns over the full operating temperature range (−40 °C to +125 °C). This value is measured under standard AC test conditions with CL = 50 pF and accounts for both rising and falling edge transitions, ensuring predictable timing in 150 MHz digital control loops.
Is MC74LCX86DR2 pin-compatible with other 74-series XOR gates in SOIC-14 packages?
Yes, MC74LCX86DR2 uses the industry-standard 14-pin SOIC footprint (case 751A) and shares identical pinout with 74HC86, 74HCT86, and 74AHC86 devices. Pin assignments for inputs (A0–A3, B0–B3), outputs (O0–O3), VCC, and GND are functionally and physically aligned - enabling mechanical drop-in replacement in existing layouts where voltage and speed requirements align.
What is the recommended operating temperature range for MC74LCX86DR2?
The MC74LCX86DR2 is rated for continuous operation from −40 °C to +125 °C ambient temperature, meeting industrial-grade thermal requirements. This range is validated per JEDEC JESD78 and confirmed in the Recommended Operating Conditions table. Operation outside this range may result in parametric drift, increased leakage, or irreversible degradation of latchup immunity.
MC74LCX86DR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LCX
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- XOR (Exclusive OR)
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Quiescent (Max):
- 10 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 6.5ns @ 3.3V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74LCX86DR2 FAQ
1.How can I place an order for MC74LCX86DR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX86DR2 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 MC74LCX86DR2 reliable?
The price and inventory of MC74LCX86DR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX86DR2 is usually 5 days.
3.What payment methods are accepted for MC74LCX86DR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX86DR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX86DR2?
MC74LCX86DR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX86DR2 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 MC74LCX86DR2?
For technical support, including MC74LCX86DR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX86DR2 requirements.
6.How does Aetrix verify that MC74LCX86DR2 is sourced from the original manufacturer or authorized distributors?
All MC74LCX86DR2 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 MC74LCX86DR2 meets industry standards.
7.What is the process for return or replacement of MC74LCX86DR2?
All MC74LCX86DR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX86DR2, 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 MC74LCX86DR2 part is unused and in its original packaging.
Return procedure for MC74LCX86DR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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