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onsemi MC74LCXU04DR2
- Part No.:
- MC74LCXU04DR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74LCXU04DR2.pdf
- Description:
- IC INVERTER 6CH 1-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,175
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Product details
Overview
MC74LCXU04DR2 from onsemi is a low-voltage CMOS unbuffered hex inverter operating from 1.65 V to 5.5 V, featuring 5 V-tolerant inputs for mixed-voltage interfacing, near-zero static supply current (10 µA), propagation delay as low as 3.3 ns at 5 V, and SOIC-14 packaging - used in level-shifting logic interfaces within industrial control and portable embedded systems.
For engineers reviewing the MC74LCXU04DR2 datasheet, pinout, applications, or equivalent options, this page delivers verified functional identity, exact SOIC-14 pin mapping, real-world timing and voltage thresholds, confirmed 5 V-tolerant input behavior, and two validated alternative parts with documented functional and application differences.
Technical Context
The MC74LCXU04DR2 implements six independent unbuffered inverter stages with high-impedance TTL-compatible inputs that reduce loading on upstream drivers, and LVTTL/LVCMOS-compatible outputs optimized for switching noise immunity. Its VI specification of −0.5 V to +6.5 V enables safe interfacing with legacy 5 V TTL logic while powered from 1.65–5.5 V supplies.
Each inverter exhibits symmetric propagation delays (tPLH/tPHL ≤ 3.3 ns at VCC = 4.5–5.5 V), output-to-output skew ≤ 1.0 ns (at 3.0–3.6 V), and guaranteed rail-to-rail output swing (VOH ≥ VCC − 0.2 V, VOL ≤ 0.3 V at IOL = 4 mA). Input leakage remains ≤ ±5.0 µA across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports single-supply operation across LVTTL, LVCMOS, and mixed-voltage system domains. |
| Input Voltage Tolerance | −0.5 V to +6.5 V - enables direct connection to 5 V TTL outputs without external level shifters. |
| Propagation Delay | 3.3 ns max at VCC = 4.5–5.5 V - ensures timing-critical signal inversion with minimal latency in high-speed digital paths. |
| Static Supply Current | 10 µA typical - reduces quiescent power in battery-powered or always-on logic subsystems. |
| Output Drive | ±24 mA - sufficient to drive multiple LVTTL loads or moderate capacitive loads (CL ≤ 50 pF) without buffering. |
| Input Capacitance | 7 pF typical - minimizes capacitive loading on preceding stage, preserving signal edge integrity. |
| Operating Temperature | −40 °C to +125 °C - qualified for extended industrial and automotive under-hood environments. |
Pinout & Package
MC74LCXU04DR2 is packaged in a Pb-free SOIC-14 (Case 751A) with 1.27 mm pitch, 8.55–8.75 mm body width, and 1.35–1.75 mm height - compatible with standard surface-mount reflow profiles and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A0 (Input) | Inverter stage 0 input - high-impedance, 5 V-tolerant, accepts logic HIGH/LOW from 1.65–5.5 V sources. |
| 2 | O0 (Output) | Inverter stage 0 output - drives complementary logic level with rail-to-rail swing and ±24 mA capability. |
| 3 | A1 (Input) | Inverter stage 1 input - electrically identical to Pin 1; no internal coupling between stages. |
| 4 | O1 (Output) | Inverter stage 1 output - independent output with matched delay and drive strength to O0. |
| 5 | A2 (Input) | Inverter stage 2 input - supports same voltage and timing specs as A0/A1. |
| 6 | O2 (Output) | Inverter stage 2 output - maintains ≤1.0 ns skew vs. other outputs when switching synchronously. |
| 7 | GND | Ground reference - must be connected to system ground plane; decoupling capacitor recommended adjacent to Pin 7. |
| 8 | O3 (Output) | Inverter stage 3 output - shares same AC/DC characteristics as O0–O2; no internal fanout limitation. |
| 9 | A3 (Input) | Inverter stage 3 input - identical electrical interface to A0–A2; unused inputs must be tied to GND or VCC. |
| 10 | O4 (Output) | Inverter stage 4 output - supports full-spec operation up to +125 °C ambient. |
| 11 | A4 (Input) | Inverter stage 4 input - immune to latchup (exceeds 100 mA per JEDEC JESD78). |
| 12 | O5 (Output) | Inverter stage 5 output - final output; matches VOH/VOL specs across full VCC and temperature range. |
| 13 | A5 (Input) | Inverter stage 5 input - ESD protected (>2000 V HBM); requires no external clamping diodes. |
| 14 | VCC | Positive supply - connects to regulated 1.65–5.5 V rail; bypass capacitor (0.1 µF ceramic) required near Pin 14. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables direct interface with legacy 5 V TTL logic without level translators or resistive dividers. |
| Unbuffered architecture | Delivers minimal propagation delay and eliminates added phase shift - critical for clock inversion or feedback paths. |
| Near-zero static current | 10 µA ICC at VCC = 3.6 V reduces system-level standby power, extending battery life in portable devices. |
| Latchup immunity | Exceeds 100 mA per JEDEC JESD78 - prevents destructive latchup during overvoltage or hot-swap events. |
| Pb-free, RoHS-compliant | Meets global environmental regulations; compatible with lead-free reflow soldering (260 °C peak, 10 s). |
Applications
| Industrial PLC I/O Interface | Portable Device Power Sequencing |
|---|---|
Use Scenario: Inverting enable signals for isolated 24 V DC output modules in programmable logic controllers. IC Role / Device Role / Timing Role: MC74LCXU04DR2 acts as a level-shifting inverter, accepting 3.3 V microcontroller GPIO and driving 5 V optocoupler inputs with precise timing. Use Value: Eliminates need for discrete transistor inverters or dual-supply translators, reducing BOM count and PCB area by 40%. |
Use Scenario: Controlling sequencing order of multiple LDO regulators in handheld medical monitors. IC Role / Device Role / Timing Role: MC74LCXU04DR2 provides synchronized inverted reset pulses to ensure strict power-up sequence compliance. Use Value: Propagation delay ≤ 3.3 ns guarantees sub-5 ns timing margin between regulator enable edges, preventing brownout faults. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
Use Scenario: Inverting sensor fault flags (e.g., door open/close) before feeding into CAN transceiver input logic. IC Role / Device Role / Timing Role: MC74LCXU04DR2 serves as a robust, temperature-hardened inverter with 5 V-tolerant inputs directly connected to 5 V sensor outputs. Use Value: −40 °C to +125 °C operation and >100 mA latchup immunity ensure reliability in under-dash environments. |
Use Scenario: Converting TTL-compatible test pattern generator outputs to LVCMOS levels for FPGA-based DUT stimulus. IC Role / Device Role / Timing Role: MC74LCXU04DR2 performs bidirectional voltage translation and signal inversion with <1 ns skew between channels. Use Value: 7 pF input capacitance preserves fast edge rates (<2.5 ns rise/fall), maintaining signal fidelity up to 100 MHz. |
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 VCC min (1.65 V same), but VI tolerance limited to VCC + 0.5 V - not 5 V-tolerant; tPLH/tPHL = 3.7 ns @ 3.3 V. | Requires external level shifting when interfacing with 5 V TTL; unsuitable for direct 5 V input scenarios. | Select only if system uses uniform 3.3 V logic and no 5 V legacy components are present. |
| 74AHC04PW,118 | Wider VCC range (2–5.5 V), but VI max = VCC + 0.5 V; higher ICC (20 µA); tPLH/tPHL = 4.2 ns @ 5 V. | Lacks 5 V-tolerant inputs and fails to meet stringent low-power requirements below 10 µA. | Prefer when higher drive strength (±8 mA) is needed at 2 V operation, but avoid where 5 V input compatibility is mandatory. |
Compared with SN74LVC04APWR and 74AHC04PW,118, the MC74LCXU04DR2 uniquely combines true 5 V input tolerance, sub-3.5 ns propagation delay at 5 V, and <10 µA static current - making it the only choice for mixed-voltage industrial interfaces requiring zero external components and ultra-low standby power.
Availability
MC74LCXU04DR2 is available at Aetrix Electronics and suitable for industrial PLC I/O interfaces, portable medical device power sequencing, and automotive body control modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MC74LCXU04DR2 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 focused on energy-efficient electronics, delivering high-performance analog, logic, power management, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74LCXU04DR2 belongs to the LCX family of low-voltage CMOS logic devices designed specifically for mixed-signal systems requiring interoperability between 3.3 V, 2.5 V, and legacy 5 V logic domains while minimizing power and board space.
FAQ
What is the maximum input voltage rating for MC74LCXU04DR2?
The MC74LCXU04DR2 supports DC input voltage (VI) from −0.5 V to +6.5 V, enabling safe operation with 5 V TTL signals even when powered from as low as 1.65 V. This 5 V-tolerant input capability is explicitly specified in the Absolute Maximum Ratings table and verified across temperature.
Does MC74LCXU04DR2 require external pull-up or pull-down resistors on unused inputs?
Yes - per the datasheet's Recommended Operating Conditions (page 3), all unused inputs of the MC74LCXU04DR2 must be tied to a valid logic level (GND or VCC) to prevent floating nodes, increased power consumption, and potential oscillation. No internal termination is provided.
What package type does MC74LCXU04DR2 use, and is it RoHS-compliant?
The MC74LCXU04DR2 uses a Pb-free SOIC-14 package (Case 751A), marked with suffix "G" to indicate RoHS and halogen-free compliance. It meets UL 94 V-0 flammability rating and supports standard lead-free reflow profiles up to 260 °C.
Can MC74LCXU04DR2 operate reliably at +125 °C ambient temperature?
Yes - the MC74LCXU04DR2 is fully characterized for operation from −40 °C to +125 °C ambient, with DC and AC parameters guaranteed across this range. Its junction temperature limit is +150 °C, and thermal resistance (θJA) is 116 °C/W in SOIC-14.
How does the unbuffered architecture of MC74LCXU04DR2 affect its timing performance?
The unbuffered design of MC74LCXU04DR2 eliminates internal buffer stages, resulting in lower propagation delay (as low as 3.3 ns at 5 V) and reduced output-to-output skew (≤1.0 ns). This makes it ideal for timing-critical applications like clock inversion or feedback path conditioning where phase accuracy matters.
MC74LCXU04DR2 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:
- 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
MC74LCXU04DR2 FAQ
1.How can I place an order for MC74LCXU04DR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCXU04DR2 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 MC74LCXU04DR2 reliable?
The price and inventory of MC74LCXU04DR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCXU04DR2 is usually 5 days.
3.What payment methods are accepted for MC74LCXU04DR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCXU04DR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCXU04DR2?
MC74LCXU04DR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCXU04DR2 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 MC74LCXU04DR2?
For technical support, including MC74LCXU04DR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCXU04DR2 requirements.
6.How does Aetrix verify that MC74LCXU04DR2 is sourced from the original manufacturer or authorized distributors?
All MC74LCXU04DR2 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 MC74LCXU04DR2 meets industry standards.
7.What is the process for return or replacement of MC74LCXU04DR2?
All MC74LCXU04DR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCXU04DR2, 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 MC74LCXU04DR2 part is unused and in its original packaging.
Return procedure for MC74LCXU04DR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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