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onsemi MC74LCX00M
- Part No.:
- MC74LCX00M
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74LCX00M.pdf
- Description:
- IC GATE NAND
- Quantity:
- Payment:
- Shipping:
Inventory:17,197
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Product details
Overview
MC74LCX00M from onsemi is a low-voltage CMOS quad 2-input NAND gate operating from 2.3 V to 3.6 V, featuring 5 V–tolerant inputs (up to 5.5 V), 24 mA balanced output drive, and near-zero static supply current (10 µA). It interfaces safely with 5 V TTL logic while delivering LVTTL/LVCMOS compatibility in SO–14 packaging for embedded control and level-shifting applications.
For engineers reviewing the MC74LCX00M datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage tolerance, output drive strength at 3.3 V, propagation delay (≤6.0 ns), quiescent current, and SO–14 package compatibility with legacy 14-pin logic footprints.
Technical Context
The MC74LCX00M implements four independent NAND gates in a single SO–14 package, each with high-impedance TTL-compatible inputs that reduce loading on upstream drivers and TTL-compatible outputs optimized for switching noise immunity. Its 5 V–tolerant input structure enables direct interfacing with 5 V logic without external level shifters.
It operates within –40°C to +85°C ambient temperature, supports 2.3–3.6 V supply rails, and maintains guaranteed AC performance (tPLH/tPHL ≤6.0 ns) under 50 pF load and 500 Ω termination. Latchup immunity exceeds 500 mA and ESD robustness meets HBM >2000 V and MM >200 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - Enables operation in modern low-power 3.3 V systems while retaining margin for supply variation. |
| Input Voltage Tolerance | –0.5 V to +5.5 V - Allows safe connection to 5 V TTL outputs without clamping diodes or resistors. |
| Output Drive | ±24 mA at VCC = 3.0–3.6 V - Sufficient to drive multiple LVTTL inputs or small capacitive loads directly. |
| Quiescent ICC | 10 µA max - Minimizes standby power in battery-backed or always-on control circuits. |
| Propagation Delay | ≤6.0 ns (VCC = 2.7 V, CL = 50 pF) - Supports >100 MHz toggle rates in critical timing paths. |
| Input Leakage | ±5.0 µA max - Ensures stable logic levels even with high-impedance source networks. |
| ESD Rating | HBM >2000 V, MM >200 V - Provides robust handling during board assembly and field service. |
Pinout & Package
EIAJ SO–14 package (Case 965), 14-pin surface-mount, 1.27 mm pitch, body size 8.65 mm × 3.9 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | Data Inputs (A0/B0, A1/B1, A2/B2, A3/B3) | High-impedance TTL-compatible inputs accepting 0–5.5 V; enable mixed-voltage system interfacing. |
| 3, 6, 11, 14 | Outputs (O0/O1/O2/O3) | Push-pull CMOS outputs with ±24 mA drive; support fan-out to ≥10 LVTTL loads. |
| 7 | GND | Ground reference for all logic and supply return paths; requires low-inductance PCB connection. |
| 14 | VCC | Primary power supply pin (2.3–3.6 V); must be decoupled locally with 0.1 µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V–Tolerant Inputs | Enables direct interface with legacy 5 V microcontrollers, FPGAs, or peripherals without external level translation. |
| Balanced ±24 mA Output Drive | Supports driving transmission lines, LED indicators, or multiple downstream logic inputs without buffering. |
| 10 µA Quiescent Current | Reduces system-level standby power consumption in portable or energy-sensitive applications. |
| Latchup Immunity >500 mA | Ensures reliability under transient overvoltage or ESD events in industrial environments. |
| SO–14 Footprint Compatibility | Direct drop-in replacement for standard 74-series logic in existing PCB layouts using EIAJ-compliant SOIC. |
Applications
| Industrial PLC I/O Modules | Low-Power Sensor Interface Boards |
|---|---|
Use Scenario: Signal conditioning and logic inversion for 5 V sensor outputs feeding 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Level-shifting NAND gate providing voltage-domain isolation and signal polarity control. Use Value: Eliminates need for discrete MOSFET translators or resistor-divider networks, reducing BOM count and layout area. | Use Scenario: Debouncing mechanical switch inputs and enabling/disabling analog front-end sections via microcontroller control. IC Role / Device Role / Timing Role: Digital logic element performing active-low enable gating and input inversion in sleep-aware subsystems. Use Value: Leverages 10 µA quiescent current to minimize leakage impact during deep-sleep modes of host MCU. |
| Legacy System Upgrades | Communications Backplane Logic |
Use Scenario: Replacing obsolete 74HC00 in 3.3 V retrofitted control panels while retaining 5 V-compatible inputs from legacy panel wiring. IC Role / Device Role / Timing Role: Pin-compatible logic gate preserving original functionality with improved noise immunity and lower power. Use Value: Avoids PCB redesign by maintaining identical SO–14 footprint and truth table behavior under mixed-supply conditions. | Use Scenario: Glue logic for synchronizing status signals between 5 V FPGA configuration banks and 3.3 V communication PHYs. IC Role / Device Role / Timing Role: Timing-critical NAND gate ensuring sub-6 ns propagation for handshake signal alignment. Use Value: Meets tight skew requirements (≤1.0 ns) across outputs to prevent metastability in parallel bus handshaking. |
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 | Same VCC range (1.65–3.6 V), but only 3.6 V input-tolerant (not 5 V); 24 mA drive confirmed. | Lacks 5 V input tolerance - requires external clamping if interfacing with 5 V sources. | Select when full 5 V tolerance is unnecessary and cost or availability favors TI's offering. |
| 74AHC00PW | Wider VCC range (2.0–5.5 V); 5 V tolerant inputs confirmed; 8 mA output drive (lower than MC74LCX00M's 24 mA). | Lower drive strength limits fan-out in high-capacitance routing or multi-load scenarios. | Select when system uses 5 V supply or mixed 3.3/5 V rails and higher drive is not required. |
Compared with SN74LVC00APWR and 74AHC00PW, the MC74LCX00M uniquely combines 5 V input tolerance, 24 mA drive, and ultra-low 10 µA quiescent current - making it optimal for power-constrained, mixed-voltage industrial control nodes where reliability and interface flexibility are critical.
Availability
MC74LCX00M is available at Aetrix Electronics and suitable for industrial PLC I/O modules, low-power sensor interface boards, and legacy system upgrades requiring stable component supply, long-term lifecycle support, and consistent SO–14 packaging.
Supply support for MC74LCX00M 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 is a global semiconductor manufacturer specializing in energy-efficient technologies for automotive, industrial, cloud, and IoT applications.
The MC74LCX00M belongs to the LCX family of low-voltage CMOS logic devices designed specifically for mixed-supply system interfacing, emphasizing 5 V tolerance, low power, and high noise immunity in industrial and embedded control environments.
FAQ
What is the maximum input voltage the MC74LCX00M can safely accept?
The MC74LCX00M supports DC input voltages from –0.5 V to +5.5 V, verified per its Absolute Maximum Ratings table. This 5 V–tolerance allows direct connection to 5 V TTL outputs without risk of damage or latchup, making the MC74LCX00M ideal for bridging legacy and modern logic domains.
Does the MC74LCX00M require external pull-up or pull-down resistors on unused inputs?
No - the MC74LCX00M features high-impedance TTL-compatible inputs with ±5.0 µA max leakage current. Unused inputs may be tied directly to VCC or GND without external resistors. However, tying to a defined rail is still recommended to prevent floating states and ensure predictable NAND gate behavior in the MC74LCX00M.
What is the typical propagation delay of the MC74LCX00M at 3.3 V supply?
At VCC = 3.3 V, CL = 50 pF, and RL = 500 Ω, the MC74LCX00M exhibits tPLH/tPHL ≤ 5.2 ns (max), per its AC Characteristics table. This ensures reliable operation in digital systems requiring sub-6 ns timing margins, such as synchronous control buses or real-time sensor preprocessing stages using the MC74LCX00M.
Is the MC74LCX00M pin-compatible with standard 74HC00 or 74LS00 devices?
Yes - the MC74LCX00M uses the standard SO–14 package (EIAJ) with identical pinout to 74HC00 and 74LS00. All four NAND gates map identically: pins 1–2–3, 4–5–6, 8–9–10, and 12–13–14. This allows drop-in replacement in existing designs, provided supply voltage and input tolerance requirements align with the MC74LCX00M's 2.3–3.6 V operation.
What decoupling capacitance is recommended for stable operation of the MC74LCX00M?
A minimum 0.1 µF ceramic capacitor placed as close as possible to the VCC (pin 14) and GND (pin 7) pins is recommended for the MC74LCX00M. For systems with high-frequency switching or shared supply rails, adding a 4.7 µF tantalum or X7R MLCC in parallel improves low-frequency stability and reduces ground bounce observed across the MC74LCX00M's output transitions.
MC74LCX00M 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:
- -
MC74LCX00M FAQ
1.How can I place an order for MC74LCX00M through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX00M 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 MC74LCX00M reliable?
The price and inventory of MC74LCX00M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX00M is usually 5 days.
3.What payment methods are accepted for MC74LCX00M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX00M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX00M?
MC74LCX00M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX00M 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 MC74LCX00M?
For technical support, including MC74LCX00M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX00M requirements.
6.How does Aetrix verify that MC74LCX00M is sourced from the original manufacturer or authorized distributors?
All MC74LCX00M 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 MC74LCX00M meets industry standards.
7.What is the process for return or replacement of MC74LCX00M?
All MC74LCX00M units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX00M, 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 MC74LCX00M part is unused and in its original packaging.
Return procedure for MC74LCX00M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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