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onsemi MC74LCX86MG
- Part No.:
- MC74LCX86MG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC74LCX86MG.pdf
- Description:
- IC GATE XOR 4CH 2-INP SOEIAJ-14
- Quantity:
- Payment:
- Shipping:
Inventory:1,368
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Product details
Overview
MC74LCX86MG from onsemi is a low-voltage CMOS quad 2-input XOR gate operating from 1.65 V to 5.5 V, featuring 5.0 V-tolerant inputs, 24 mA balanced output drive at 3.0 V, near-zero static supply current (10 µA), and TTL/LVCMOS compatibility. It performs logic-level exclusive-OR operations in mixed-voltage digital systems such as level-shifting interfaces between 3.3 V and 5 V domains.
For engineers reviewing the MC74LCX86MG datasheet, pinout, applications, or equivalent options, this device supports high-speed signal integrity in battery-powered portable electronics, industrial control I/O expansion, and FPGA/CPLD glue logic where voltage translation and low quiescent power are critical.
Technical Context
The MC74LCX86MG implements four independent XOR gates with rail-to-rail input tolerance up to 5.5 V while powered from as low as 1.65 V, enabling direct interfacing with legacy 5 V TTL outputs without external level shifters. Its VIH/VIL thresholds scale with VCC across multiple voltage bands (e.g., VIH = 0.65×VCC at 1.65–1.95 V; 0.70×VCC at 4.5–5.5 V), ensuring robust noise margins.
Propagation delay ranges from 4.5 ns (at 4.5–5.5 V) to 12.0 ns (at 1.65–1.95 V), with output skew ≤1.0 ns across channels at 3.0–3.6 V. The device maintains LVTTL-compatible output levels and exhibits <7 pF input capacitance and <8 pF output capacitance at 3.3 V, minimizing dynamic loading on driving stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables operation across 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level-shifting circuitry. |
| Input Voltage Tolerance | −0.5 V to +6.5 V - Allows safe connection to 5 V TTL outputs while powered from lower VCC (e.g., 3.3 V or 2.5 V). |
| Output Drive | ±24 mA at 3.0 V - Sufficient to drive standard TTL loads or multiple CMOS inputs without buffering. |
| Quiescent ICC | 10 µA max - Reduces standby power in always-on subsystems like real-time clock interfaces or sensor wake-up logic. |
| Propagation Delay | 4.5 ns max at 4.5–5.5 V - Supports >100 MHz toggle rates in critical timing paths of microcontroller peripherals. |
| Input Capacitance | 7 pF typical - Limits capacitive loading on high-impedance drivers such as microcontroller GPIO or analog switch outputs. |
| ESD Rating | HBM >2000 V - Provides baseline ESD robustness for board-level handling and end-user interface circuits. |
Pinout & Package
TSSOP-14 package (Case 948G), 4.9 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 10, 12, 13 | Data Input (A0–A3, B0–B3) | Accepts logic signals; 5 V tolerant regardless of VCC - enables mixed-supply interconnect without clamping diodes. |
| 3, 6, 11, 8 | Output (O0–O3) | Drives downstream logic; TTL-compatible VOH/VOL ensures interoperability with legacy 5 V inputs even at low VCC. |
| 7 | GND | Ground reference for all logic and power domains; must be low-inductance connection to minimize switching noise. |
| 14 | VCC | Primary supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables direct connection to 5 V microcontrollers or legacy peripherals without external level translators. |
| Balanced ±24 mA output drive | Supports fan-out of ≥10 LVTTL loads or ≥20 LVCMOS inputs at 3.3 V, reducing need for buffer ICs. |
| Near-zero static current (10 µA) | Minimizes battery drain in always-on logic blocks such as interrupt combiners or status encoders. |
| Latchup immunity >100 mA | Ensures robustness against transient overvoltage events in noisy industrial environments. |
| Pb-free, RoHS-compliant packaging | Meets global environmental compliance requirements for consumer, medical, and automotive applications. |
Applications
| Industrial PLC I/O Expansion | Portable Device Power Sequencing |
|---|---|
Use Scenario: Adding isolated XOR-based parity checking to modular I/O cards in programmable logic controllers. IC Role / Device Role / Timing Role: Performs real-time bit-wise XOR on parallel data lines to generate parity bits before transmission over RS-485. Use Value: Eliminates need for discrete resistor networks or higher-power CPLDs, reducing BOM cost and PCB area by >30%. | Use Scenario: Coordinating power-up sequencing between 3.3 V MCU and 5 V display driver in handheld medical monitors. IC Role / Device Role / Timing Role: Generates enable/disable strobes using XOR logic on reset and voltage-good signals from dual regulators. Use Value: Ensures deterministic startup order without dedicated sequencer ICs, cutting system-level component count by one. |
| FPGA Configuration Interface | Automotive Body Control Module |
Use Scenario: Implementing address decoding and bus arbitration logic between FPGA and external SPI flash memory. IC Role / Device Role / Timing Role: Acts as configurable XOR gate array to mask or invert address bits based on mode selection pins. Use Value: Provides flexible memory mapping without reprogramming FPGA bitstream, accelerating field firmware updates. | Use Scenario: Detecting mismatched switch states (e.g., door open/closed vs. latch position) in vehicle door modules. IC Role / Device Role / Timing Role: Compares redundant sensor inputs via XOR to flag inconsistent readings in real time. Use Value: Delivers fail-safe diagnostics with sub-10 ns response latency, meeting ASIL-B functional safety requirements. |
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 max VCC (3.6 V); no 5 V input tolerance; 24 mA drive at 3.3 V identical. | Requires external level shifting when interfacing with 5 V sources; unsuitable for mixed-voltage backplanes. | Select only if system operates exclusively at ≤3.6 V and all upstream logic is LVCMOS. |
| 74AHC86PW | Wider VCC range (2–5.5 V); 5 V tolerant inputs; slower propagation (7.5 ns min at 5 V). | Higher propagation delay limits use in >70 MHz clock domains; better noise immunity due to AHC threshold design. | Prefer for cost-sensitive industrial controls where speed is secondary to EMI resilience. |
Compared with SN74LVC86APWR, MC74LCX86MG provides essential 5 V input tolerance for legacy integration; versus 74AHC86PW, it delivers faster 4.5 ns propagation at 5 V while maintaining identical package and pinout - enabling drop-in replacement in timing-critical designs.
Availability
MC74LCX86MG is available at Aetrix Electronics and suitable for industrial automation, portable medical devices, and automotive body electronics requiring stable component supply across extended temperature ranges (−40 °C to +125 °C).
Supply support for MC74LCX86MG 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 delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74LCX86MG belongs to the LCX low-voltage logic family, designed specifically for mixed-signal systems requiring seamless interoperability between 1.8 V/2.5 V/3.3 V and 5 V logic domains.
FAQ
What is the maximum input voltage rating for MC74LCX86MG?
The MC74LCX86MG supports DC input voltages from −0.5 V to +6.5 V, independent of VCC. This allows safe connection to 5 V TTL outputs even when powered from 1.65 V to 3.3 V supplies, eliminating external clamping diodes or level shifters in mixed-voltage interfaces.
Does MC74LCX86MG support operation at 1.8 V supply?
Yes, MC74LCX86MG is fully specified for operation at 1.65 V to 5.5 V, including 1.8 V. At 1.8 V, VIH is 1.17 V (0.65×VCC) and VIL is 0.63 V (0.35×VCC), with propagation delay ≤12.0 ns and output drive capability maintained per datasheet AC/DC specs.
What package type is used for MC74LCX86MG?
MC74LCX86MG uses the TSSOP-14 package (Case 948G), measuring 4.9 mm × 4.4 mm × 1.2 mm with 0.65 mm lead pitch. It is Pb-free, RoHS compliant, and rated MSL Level 1 - suitable for standard reflow soldering without moisture preconditioning.
Can MC74LCX86MG replace older 74LS86 in existing designs?
MC74LCX86MG can replace 74LS86 in many cases due to identical pinout (SOIC-14/TSSOP-14), same truth table, and TTL-compatible outputs. However, its 5 V-tolerant inputs and lower supply voltage range (1.65–5.5 V vs. 4.75–5.25 V) require verification of VCC stability and input source compatibility in legacy 5 V-only systems.
What is the thermal resistance (θJA) of MC74LCX86MG in TSSOP-14?
The junction-to-ambient thermal resistance (θJA) for MC74LCX86MG in TSSOP-14 package is 150 °C/W under JEDEC JESD51-7 conditions (76 mm × 114 mm, 2-oz copper, still air). This value assumes standard PCB layout with thermal vias under the exposed pad - not applicable here since TSSOP-14 lacks an exposed pad.
MC74LCX86MG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LCX
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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:
- SOEIAJ-14
MC74LCX86MG FAQ
1.How can I place an order for MC74LCX86MG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX86MG 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 MC74LCX86MG reliable?
The price and inventory of MC74LCX86MG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX86MG is usually 5 days.
3.What payment methods are accepted for MC74LCX86MG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX86MG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX86MG?
MC74LCX86MG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX86MG 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 MC74LCX86MG?
For technical support, including MC74LCX86MG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX86MG requirements.
6.How does Aetrix verify that MC74LCX86MG is sourced from the original manufacturer or authorized distributors?
All MC74LCX86MG 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 MC74LCX86MG meets industry standards.
7.What is the process for return or replacement of MC74LCX86MG?
All MC74LCX86MG units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX86MG, 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 MC74LCX86MG part is unused and in its original packaging.
Return procedure for MC74LCX86MG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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