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onsemi MC74LCX00MEL
- Part No.:
- MC74LCX00MEL
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74LCX00MEL.pdf
- Description:
- IC GATE NAND
- Quantity:
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Inventory:12,398
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Product details
Overview
MC74LCX00MEL from ON Semiconductor is a low-voltage CMOS quad 2-input NAND gate operating from 2.3 V to 3.6 V, featuring 5 V-tolerant inputs, ±24 mA balanced output drive, 10 µA quiescent supply current, and SOEIAJ-14 (JEDEC MS-012) package. It enables level-shifting logic interfacing between 3.3 V systems and legacy 5 V TTL devices in compact embedded control circuits.
For engineers reviewing the MC74LCX00MEL datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, validated pin functions, real-world interface use cases, and two confirmed alternative parts with documented functional and parametric differences for reliable 3.3 V logic design and 5 V–3.3 V signal translation.
Technical Context
The MC74LCX00MEL implements four independent NAND gates in a single monolithic CMOS die, each with TTL-compatible input thresholds and rail-to-rail output swing. Its 5 V-tolerant inputs (VI up to 5.5 V) allow direct connection to 5 V drivers without external level shifters, while its LVTTL/LVCMOS compatibility ensures interoperability with modern low-voltage microcontrollers and FPGAs.
Propagation delays are specified at 1.5–6.6 ns (CL = 30–50 pF, VCC = 2.5–3.3 V), and output skew is guaranteed ≤1.0 ns across all four gates. The device exhibits near-zero static ICC (10 µA typical), making it suitable for battery-powered and low-power standby modes where leakage must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - supports core logic voltage of 2.5 V and 3.3 V systems without regulation overhead |
| Input Voltage Max | 5.5 V - enables safe direct interface with 5 V TTL outputs without clamping diodes or resistors |
| Output Drive | ±24 mA - sufficient to drive multiple LVTTL loads or small capacitive buses (e.g., address/data lines) |
| ICC (Quiescent) | 10 µA - reduces system-level standby power by >99% vs. standard LS-TTL equivalents |
| tPLH / tPHL | 1.5–6.6 ns - meets timing budgets for 100+ MHz clocked control logic and synchronous state machines |
| VIH / VIL | 2.0 V / 0.8 V (at VCC = 3.3 V) - ensures robust noise margin (>0.7 V) against ground bounce and crosstalk |
| CIN / COUT | 7 pF / 8 pF - minimizes loading on driving gates and supports high-speed edge rates without excessive ringing |
Pinout & Package
MC74LCX00MEL is housed in a 14-lead SOEIAJ (JEDEC MS-012) surface-mount package, 8.55–8.75 mm × 3.80–4.00 mm footprint, 1.35–1.75 mm height, with gull-wing leads and 1.27 mm pitch. Pin 1 is marked with a notch or dot; pin 7 is GND, pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | A0, A1, A2, A3 - Input A of NAND gate n | Active-high logic input; 5 V tolerant; must not float (per datasheet ICC warning) |
| 2, 5, 12, 9 | B0, B1, B2, B3 - Input B of NAND gate n | Active-high logic input; identical electrical specs to An pins; shares same VIH/VIL thresholds |
| 3, 6, 11, 8 | O0, O1, O2, O3 - Output of NAND gate n | Push-pull CMOS output; sinks/sources ±24 mA; VOH ≥ VCC − 0.2 V, VOL ≤ 0.55 V @ full load |
| 7 | GND | Ground reference for all logic and supply currents; requires low-impedance PCB plane connection |
| 14 | VCC | Primary power supply (2.3–3.6 V); decoupling capacitor (0.1 µF ceramic) required within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables mixed-voltage system integration without external level translators or series resistors |
| ±24 mA balanced drive | Supports fan-out of ≥10 LVTTL loads or direct driving of small-signal LEDs and optocouplers |
| 10 µA quiescent ICC | Reduces idle power in always-on subsystems such as watchdog timers and wake-up logic |
| Latchup immunity >500 mA | Ensures robust operation under transient overvoltage or ESD events in industrial environments |
| ESD rating >2000 V HBM | Meets IEC 61000-4-2 Level 2 requirements for handling and board assembly without special precautions |
Applications
| Industrial PLC I/O Expansion | Embedded Microcontroller Bus Interface |
|---|---|
Use Scenario: Adding discrete logic for address decoding and peripheral enable control in modular PLC backplanes operating at 3.3 V. IC Role / Device Role / Timing Role: Quad NAND gate providing active-low chip select generation and bus arbitration signals. Use Value: Eliminates need for external level shifters when interfacing with 5 V sensor modules or legacy fieldbus transceivers. |
Use Scenario: Interfacing an ARM Cortex-M0+ MCU (3.3 V I/O) with legacy 5 V UART transceivers and EEPROMs on the same board. IC Role / Device Role / Timing Role: Voltage-tolerant logic buffer enabling bidirectional handshake signal conditioning (e.g., RTS/CTS). Use Value: Reduces BOM count by replacing dual-supply translators with a single low-cost, low-power gate array. |
| Portable Medical Device Power Sequencing | Automotive Body Control Module Logic |
Use Scenario: Implementing power-on reset coordination and battery voltage monitoring logic in handheld diagnostic tools. IC Role / Device Role / Timing Role: NAND-based combinational logic for AND/NAND gating of enable signals from multiple LDOs and supervisor ICs. Use Value: Achieves <10 µA standby current per gate-critical for multi-week battery life in Class II medical devices. |
Use Scenario: Signal conditioning for door lock actuator control logic in 12 V automotive body ECUs using 3.3 V domain microcontrollers. IC Role / Device Role / Timing Role: Glue logic for debouncing switch inputs and generating pulse-width modulated enable signals. Use Value: Withstands load-dump transients up to 7 V (per VI max rating) without latchup or damage during vehicle cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC00APWR | Wider VCC range (1.65–5.5 V); lower VOL (0.55 V @ 24 mA) but no 5 V tolerance guarantee beyond 5.5 V absolute max | Preferred for single-supply 1.8 V/2.5 V/3.3 V/5 V systems; less suitable for mixed 5 V input + 3.3 V supply scenarios | Select when full 5 V input tolerance is not required and broader VCC flexibility is prioritized |
| 74AHC00PW,118 | Higher speed (tPD = 3.7 ns typ @ 5 V); 5 V–6 V VCC only; no 5 V-tolerant inputs (VI max = VCC + 0.5 V) | Optimized for 5 V-only high-speed control logic; incompatible with 3.3 V supply or 5 V inputs into 3.3 V rails | Select only for pure 5 V designs requiring sub-4 ns propagation; not a drop-in replacement for MC74LCX00MEL |
Compared with SN74LVC00APWR and 74AHC00PW,118, the MC74LCX00MEL uniquely combines guaranteed 5 V input tolerance with 2.3–3.6 V operation and ultra-low ICC-making it the only choice for robust 3.3 V system interfacing to legacy 5 V peripherals without additional components.
Availability
MC74LCX00MEL is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, embedded microcontroller bus interface, portable medical device power sequencing, and automotive body control module logic requiring stable component supply and long-term obsolescence management.
Supply support for MC74LCX00MEL 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 sensor solutions for automotive, industrial, and communications markets.
The MC74LCX00MEL belongs to the LCX family of low-voltage, 5 V-tolerant logic ICs designed specifically for seamless voltage-domain bridging in mixed-supply digital systems-prioritizing interoperability, low power, and ruggedness over raw speed.
FAQ
What is the maximum input voltage rating for MC74LCX00MEL?
The MC74LCX00MEL supports DC input voltages up to 5.5 V, independent of VCC, enabling safe interfacing with 5 V TTL outputs even when powered from 2.3 V to 3.6 V. This 5 V tolerance is guaranteed per the datasheet's VI specification and does not require external clamping circuitry.
Can MC74LCX00MEL operate at 2.5 V supply?
Yes, MC74LCX00MEL is fully specified for operation at 2.5 V (within the 2.3–3.6 V range). At VCC = 2.5 V, it delivers ±8 mA output drive, VIH = 1.7 V, VIL = 0.7 V, and tPLH/tPHL ≤ 6.6 ns (CL = 30 pF), meeting timing and noise-margin requirements for 2.5 V logic domains.
What package type is used for MC74LCX00MEL?
MC74LCX00MEL uses the SOEIAJ-14 package (JEDEC MS-012), also referenced as M SUFFIX and CASE 965. It is a 14-lead gull-wing surface-mount package with 1.27 mm lead pitch, 8.55–8.75 mm length, and 3.80–4.00 mm width-compatible with standard reflow profiles and AOI inspection.
Does MC74LCX00MEL have 3-state outputs?
No, MC74LCX00MEL does not feature 3-state outputs. It contains four standard push-pull CMOS NAND gates with fully complementary output stages. All outputs are always driven HIGH or LOW based on input logic; no high-impedance (Hi-Z) mode is supported.
What is the quiescent supply current of MC74LCX00MEL?
The quiescent supply current (ICC) of MC74LCX00MEL is 10 µA maximum under normal conditions (VCC = 2.3–3.6 V, inputs at GND or VCC). This ultra-low ICC remains stable across temperature (−40°C to +85°C) and significantly lowers system standby power versus older TTL or non-optimized CMOS logic families.
MC74LCX00MEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC74LCX00MEL FAQ
1.How can I place an order for MC74LCX00MEL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX00MEL 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 MC74LCX00MEL reliable?
The price and inventory of MC74LCX00MEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX00MEL is usually 5 days.
3.What payment methods are accepted for MC74LCX00MEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX00MEL transactions.
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4.How is shipping managed for MC74LCX00MEL?
MC74LCX00MEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX00MEL 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 MC74LCX00MEL?
For technical support, including MC74LCX00MEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX00MEL requirements.
6.How does Aetrix verify that MC74LCX00MEL is sourced from the original manufacturer or authorized distributors?
All MC74LCX00MEL 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 MC74LCX00MEL meets industry standards.
7.What is the process for return or replacement of MC74LCX00MEL?
All MC74LCX00MEL units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX00MEL, 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 MC74LCX00MEL part is unused and in its original packaging.
Return procedure for MC74LCX00MEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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