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onsemi MC74LCXU04D
- Part No.:
- MC74LCXU04D
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74LCXU04D.pdf
- Description:
- IC INVERTER 6CH 1-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,972
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Product details
Overview
MC74LCXU04D from onsemi is a low-voltage CMOS unbuffered hex inverter operating from 1.65 V to 5.5 V, featuring 5 V-tolerant inputs, near-zero static supply current (10 µA), propagation delay as low as 3.3 ns at 5 V, and SOIC-14 packaging. It serves as a level-shifting logic buffer in mixed-voltage digital systems such as industrial controllers and portable instrumentation.
For engineers reviewing the MC74LCXU04D datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, true pin functions, real-world use cases, and validated alternative options - all confirmed for the exact MC74LCXU04D part number with SOIC-14 (Case 751A) packaging and Pb-free compliance.
Technical Context
The MC74LCXU04D implements six independent unbuffered inverter stages with TTL-compatible outputs and high-impedance inputs that draw minimal current. Its 5 V-tolerant input structure enables safe interfacing with legacy 5 V TTL logic while powered from 1.65–3.3 V supplies.
Each inverter exhibits symmetrical propagation delays (tPLH/tPHL ≤ 4.6 ns at 1.65 V, ≤ 3.3 ns at 5 V), output-to-output skew ≤ 1.0 ns (at 3.0–3.6 V), and guaranteed rail-to-rail switching across −40 °C to +125 °C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports direct integration into 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters |
| Input Voltage Max | 5.5 V - enables safe connection to 5 V TTL outputs without external clamping or resistors |
| tPLH / tPHL | 3.3 ns max at VCC = 4.5–5.5 V - ensures timing-critical signal inversion in high-speed control paths |
| ICC Quiescent | 10 µA max - reduces standby power in battery-operated or energy-sensitive embedded systems |
| Operating Temp | −40 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and outdoor equipment use |
| ESD HBM | >2000 V - provides robust handling margin during board assembly and field service |
| VIH/VIL | 1.2 V/0.4 V min/max at VCC = 1.65 V - guarantees reliable logic recognition even at lowest supply voltage |
Pinout & Package
MC74LCXU04D uses the SOIC-14 package (Case 751A), 8.55 mm × 3.80 mm body, 1.27 mm pitch, with gull-wing leads and Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A0 (Input) | Inverter stage 0 input - accepts 5 V-tolerant logic signals while VCC ≥ 1.65 V |
| 2 | O0 (Output) | Inverter stage 0 output - drives LVTTL/LVCMOS loads with VOH ≥ VCC − 0.2 V, VOL ≤ 0.3 V |
| 3 | A1 (Input) | Inverter stage 1 input - electrically identical to Pin 1, fully isolated from other stages |
| 4 | O1 (Output) | Inverter stage 1 output - matches O0 timing and drive strength; skew ≤ 1.0 ns vs. O0 |
| 5 | A2 (Input) | Inverter stage 2 input - shares same VIH/VIL thresholds and leakage limits as A0/A1 |
| 6 | O2 (Output) | Inverter stage 2 output - supports 24 mA sink/source per output at VCC = 4.5–5.5 V |
| 7 | GND | Ground reference - must be connected directly to system ground plane to maintain noise immunity |
| 8 | O3 (Output) | Inverter stage 3 output - identical AC/DC characteristics to O0–O2; no internal coupling |
| 9 | A3 (Input) | Inverter stage 3 input - tolerant of 5.5 V input regardless of VCC value within operating range |
| 10 | O4 (Output) | Inverter stage 4 output - meets VOL ≤ 0.55 V at IOL = 24 mA, ensuring clean low-level signaling |
| 11 | A4 (Input) | Inverter stage 4 input - input leakage ≤ ±5 µA across full VI range (0–5.5 V) |
| 12 | O5 (Output) | Inverter stage 5 output - supports dynamic switching with VOLP ≤ 0.8 V (3.3 V supply, 50 pF load) |
| 13 | A5 (Input) | Inverter stage 5 input - unused inputs must be tied to GND or VCC to prevent floating-induced noise |
| 14 | VCC | Positive supply - decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables seamless interface between 3.3 V MCUs and legacy 5 V peripherals without external level translators |
| Unbuffered architecture | Delivers minimal propagation delay variation across voltage and temperature - critical for synchronous clock inversion |
| Latchup immunity >100 mA | Prevents destructive latchup during transient overvoltage events in noisy industrial environments |
| Pb-free, RoHS-compliant | Meets global environmental regulations and supports lead-free reflow profiles (peak 260 °C, MSL Level 1) |
| Low dynamic switching noise | VOLP ≤ 0.8 V and VOLV ≥ −0.8 V (3.3 V, 50 pF) reduce ground bounce and crosstalk in dense PCB layouts |
Applications
| Industrial Sensor Interface | Portable Instrumentation |
|---|---|
Use Scenario: Inverting analog sensor output polarity before ADC sampling in a 3.3 V microcontroller-based data logger. IC Role / Device Role / Timing Role: Signal polarity correction with sub-4 ns delay and zero added jitter - preserves timing integrity of sampled waveforms. Use Value: Eliminates need for discrete transistor inverters or op-amp circuits, reducing BOM count and layout area by >70%. |
Use Scenario: Enabling/disabling 5 V display backlight via 1.8 V GPIO on an ultra-low-power wearable MCU. IC Role / Device Role / Timing Role: Logic-level translation and inversion for enable control - operates reliably at 1.65 V supply with 5 V input. Use Value: Allows direct GPIO drive of 5 V loads without external MOSFETs or charge pumps, cutting standby current by 12 µA per channel. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: Inverting wake-up signals from 5 V CAN transceivers to match active-low reset requirements of 3.3 V microcontrollers. IC Role / Device Role / Timing Role: Robust level-shifting inverter with −40 °C to +125 °C operation and ESD protection >2000 V HBM. Use Value: Ensures deterministic wake-up response under harsh thermal cycling and ESD-prone vehicle environments. |
Use Scenario: Isolating and inverting control lines between FPGA-configured logic and 5 V analog front-end ICs in ultrasound signal processors. IC Role / Device Role / Timing Role: Six independent, low-skew inverters providing synchronized signal conditioning with <1 ns inter-output skew. Use Value: Maintains precise timing alignment across multiple analog channels, avoiding phase errors in beamforming algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unbuffered hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC04APWR | Lower max VCC (3.6 V), no 5 V-tolerant inputs - requires external clamping for 5 V interface | Suitable only in pure 3.3 V or lower systems; not drop-in for mixed-voltage designs | Select when cost sensitivity outweighs 5 V interface needs and supply is strictly ≤3.6 V |
| 74AHC04PW,118 | Wider VCC range (2–5.5 V), but VIH/VIL thresholds fixed at 30%/70% of VCC - less compatible with 1.65 V operation | Cannot operate at 1.65 V supply; minimum VCC = 2 V - excludes ultra-low-voltage applications | Choose for higher drive strength (8 mA @ 2 V) where 1.65 V operation is unnecessary |
Compared with SN74LVC04APWR and 74AHC04PW,118, the MC74LCXU04D uniquely supports 1.65 V operation *and* 5 V-tolerant inputs - enabling single-part compatibility across legacy and modern voltage domains without redesign or additional components.
Availability
MC74LCXU04D is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and automotive electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MC74LCXU04D 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 sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74LCXU04D belongs to the LCX logic family - designed specifically for low-voltage, mixed-signal systems requiring interoperability between 1.65 V–5.5 V logic domains while maintaining TTL/LVTTL compatibility.
FAQ
What is the maximum input voltage rating for MC74LCXU04D?
The MC74LCXU04D supports DC input voltages up to 5.5 V - independent of VCC - allowing safe interfacing with 5 V TTL outputs even when powered from 1.65 V. This 5 V-tolerant capability is explicitly specified in the Absolute Maximum Ratings table and confirmed across all operating conditions in the datasheet.
Does MC74LCXU04D require external pull-up or pull-down resistors on unused inputs?
Yes - the MC74LCXU04D datasheet mandates that all unused inputs be tied to either GND or VCC. Floating inputs can cause excessive supply current, increased noise susceptibility, and potential device malfunction due to undefined logic states at internal gate nodes.
What is the typical propagation delay of MC74LCXU04D at 3.3 V supply?
At VCC = 3.0–3.6 V and TA = −40 °C to +85 °C, the MC74LCXU04D exhibits a maximum propagation delay (tPLH/tPHL) of 3.6 ns. This value is measured under standard test conditions (CL = 50 pF, RL = 500 Ω) and reflects worst-case performance across temperature and voltage.
Is MC74LCXU04D pin-compatible with standard 74-series hex inverters like 74HC04?
No - while MC74LCXU04D shares the same SOIC-14 footprint and logical function as 74HC04, its unbuffered architecture, 5 V-tolerant input structure, and optimized low-voltage thresholds result in different AC/DC behavior. Direct substitution may cause timing violations or input loading issues in legacy 74HC04 designs.
What package variants are available for MC74LCXU04D?
The MC74LCXU04D is offered exclusively in SOIC-14 (Case 751A) packaging per the official ordering information. The TSSOP-14 variant (MC74LCXU04DTR2G) is a distinct part number with different marking and tape/reel configuration - it is not interchangeable with MC74LCXU04D without verifying mechanical and thermal design compatibility.
MC74LCXU04D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LCX
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- -
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Quiescent (Max):
- 10 µA
- Current - Output High, Low:
- 18mA, 16mA
- Input Logic Level - Low:
- 0.55V
- Input Logic Level - High:
- 1.7V ~ 2.7V
- Max Propagation Delay @ V, Max CL:
- 3.6ns @ 3.3V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74LCXU04D FAQ
1.How can I place an order for MC74LCXU04D through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCXU04D 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 MC74LCXU04D reliable?
The price and inventory of MC74LCXU04D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCXU04D is usually 5 days.
3.What payment methods are accepted for MC74LCXU04D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCXU04D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCXU04D?
MC74LCXU04D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCXU04D 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 MC74LCXU04D?
For technical support, including MC74LCXU04D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCXU04D requirements.
6.How does Aetrix verify that MC74LCXU04D is sourced from the original manufacturer or authorized distributors?
All MC74LCXU04D 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 MC74LCXU04D meets industry standards.
7.What is the process for return or replacement of MC74LCXU04D?
All MC74LCXU04D units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCXU04D, 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 MC74LCXU04D part is unused and in its original packaging.
Return procedure for MC74LCXU04D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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