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onsemi MC74LCX04DT
- Part No.:
- MC74LCX04DT
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC74LCX04DT.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,247
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Product details
Overview
MC74LCX04DT from onsemi is a low-voltage CMOS hex inverter with 5 V-tolerant inputs, operating from 1.65 V to 5.5 V supply. It delivers balanced ±24 mA output drive at 3.0 V, features near-zero static supply current (10 µA), and supports automotive-grade AEC-Q100 qualification. It is used in level-shifting logic interfaces between 3.3 V/2.5 V systems and legacy 5 V TTL buses.
For engineers reviewing the MC74LCX04DT datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, validated TSSOP-14 pin mapping, confirmed 5 V-tolerant input behavior, and real-world interface use cases for mixed-voltage digital systems.
Technical Context
The MC74LCX04DT implements six independent CMOS inverter stages in a single monolithic IC, each with high-impedance TTL-compatible inputs and rail-to-rail CMOS outputs. Its 5 V-tolerant input structure allows safe interfacing with 5 V logic while powered from as low as 1.65 V - critical for voltage-domain bridging in portable and automotive electronics.
Propagation delay is specified down to 4.2 ns at 4.5–5.5 V and 5.2 ns at 3.0–3.6 V, with output skew ≤1.0 ns across channels. Input leakage remains ≤±5.0 µA over full temperature range (−40°C to +125°C), supporting low-power always-on subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - enables direct operation from 1.8 V, 2.5 V, 3.3 V, or 5 V rails without level shifters. |
| Input Voltage Max | 6.5 V absolute max; 5.5 V rated - permits safe connection to 5 V TTL outputs even when VCC = 3.3 V or lower. |
| Output Drive | ±24 mA at VCC = 3.0 V - sufficient to drive multiple LVTTL/LVCMOS loads or small capacitive buses. |
| Static ICC | 10 µA typical - reduces quiescent power in battery-backed or standby circuits. |
| Propagation Delay | 4.2 ns max at 4.5–5.5 V - supports >100 MHz toggle rates in clean signal paths. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive and industrial control environments. |
| ESD Rating | Human Body Model >2000 V - improves board-level robustness during handling and system integration. |
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 | A0 (Input) | Inverter stage 0 input - accepts 0–5.5 V logic levels regardless of VCC setting. |
| 2 | O0 (Output) | Inverter stage 0 output - CMOS rail-to-rail swing, ±24 mA drive capability at 3.0 V. |
| 3 | A1 (Input) | Inverter stage 1 input - electrically identical to Pin 1; no internal coupling. |
| 4 | O1 (Output) | Inverter stage 1 output - matched delay and drive strength to O0; skew ≤1.0 ns. |
| 5 | A2 (Input) | Inverter stage 2 input - supports same VIH/VIL thresholds as A0/A1 across all VCC conditions. |
| 6 | O2 (Output) | Inverter stage 2 output - fully buffered; no contention with other outputs. |
| 8 | O3 (Output) | Inverter stage 3 output - located opposite GND pin to minimize ground bounce coupling. |
| 9 | A3 (Input) | Inverter stage 3 input - shares same input structure and leakage spec (≤±5 µA) as A0–A2. |
| 10 | O4 (Output) | Inverter stage 4 output - designed for <10 pF load; COUT = 8 pF typical. |
| 11 | A4 (Input) | Inverter stage 4 input - VIH = 0.7×VCC min at 4.5–5.5 V, ensuring reliable 5 V TTL recognition. |
| 12 | O5 (Output) | Inverter stage 5 output - final inverter output; matches VOL = 0.6 V max at IOL = 24 mA, VCC = 4.5 V. |
| 13 | A5 (Input) | Inverter stage 5 input - last input; requires external tie-high/tie-low if unused per datasheet guidance. |
| 7 | GND | Digital ground reference - dedicated return path; decoupling capacitor required within 5 mm. |
| 14 | VCC | Positive supply - must be bypassed with 0.1 µF ceramic capacitor close to Pin 14. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables direct connection to 5 V TTL outputs while VCC = 1.65–3.3 V, eliminating external level translators. |
| 24 mA balanced drive | Supports fan-out of ≥10 LVTTL loads or driving 30–50 pF trace capacitance at 3.3 V without signal degradation. |
| 10 µA quiescent current | Reduces standby power in always-on modules (e.g., CAN wake-up logic, sensor monitoring circuits). |
| AEC-Q100 qualified (−Q) | Validated for automotive applications including engine control, body electronics, and ADAS subsystems. |
| Latchup immunity >100 mA | Prevents destructive latchup during transient overvoltage events on I/O pins in noisy environments. |
Applications
| Industrial PLC I/O Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating and inverting digital status signals from 5 V sensors into a 3.3 V microcontroller GPIO bank. IC Role / Device Role / Timing Role: Level-shifting inverter buffer providing noise-immune signal inversion and voltage domain translation. Use Value: Eliminates need for discrete resistor-divider or dual-supply translator ICs, reducing BOM count and PCB area by 30%. |
Use Scenario: Driving LED indicators and relay coils from a 2.5 V MCU in door module assemblies. IC Role / Device Role / Timing Role: Logic-level inverter with enhanced drive strength enabling direct LED/relay control without external transistors. Use Value: Reduces component count by replacing 6x discrete inverters + 6x driver transistors, lowering assembly cost and test complexity. |
| Portable Device Power Sequencing | Medical Diagnostic Equipment Logic |
|
Use Scenario: Inverting enable signals for multiple DC-DC converters in battery-powered ultrasound handhelds. IC Role / Device Role / Timing Role: Low-quiescent-current inverter generating complementary enable/disable timing for sequenced power rails. Use Value: Achieves <1 µA total system standby current contribution due to 10 µA ICC and zero dynamic switching in idle state. |
Use Scenario: Signal conditioning and polarity correction for serial communication lines between FPGA and analog front-end ASIC. IC Role / Device Role / Timing Role: High-speed inverter with sub-5 ns propagation delay ensuring setup/hold compliance in 50 MHz SPI links. Use Value: Maintains signal integrity across 10 cm FR4 traces with <100 mV overshoot/undershoot (VOLP/VOLV tested per datasheet). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 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 or level shifting for 5 V inputs. | Suitable only in pure 3.3 V systems; not drop-in for mixed-voltage designs. | Select when cost sensitivity outweighs interface flexibility and automotive qualification is unnecessary. |
| 74AHC04PW,118 | Wider VCC range (2–5.5 V); higher drive (±8 mA @ 3.3 V) but no AEC-Q100 qualification or 5 V-tolerant inputs. | Used in commercial industrial controllers where automotive reliability is not mandated. | Choose for general-purpose 3.3 V logic inversion where extended temperature range is not required. |
Compared with SN74LVC04APWR and 74AHC04PW,118, the MC74LCX04DT uniquely combines 5 V-tolerant inputs, AEC-Q100 qualification, and 10 µA quiescent current - making it the only option among the three qualified for automotive body electronics with legacy 5 V sensor interfaces.
Availability
MC74LCX04DT is available at Aetrix Electronics and suitable for automotive body control, industrial PLC I/O, and portable medical device design requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MC74LCX04DT 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 silicon solutions for automotive, industrial, cloud, and IoT applications.
The MC74LCX04DT belongs to the LCX low-voltage logic family, engineered for mixed-voltage system interfacing with emphasis on 5 V-tolerant inputs, ultra-low static power, and automotive reliability.
FAQ
What is the maximum input voltage rating for MC74LCX04DT?
The MC74LCX04DT supports DC input voltages up to +6.5 V absolute maximum, with a rated 5.5 V tolerance under normal operation. This allows safe interfacing with 5 V TTL outputs even when VCC is as low as 1.65 V - a key feature confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of the official datasheet.
Is MC74LCX04DT pin-compatible with standard 74HC04 or 74LS04 packages?
No, MC74LCX04DT is not pin-compatible with 74HC04 or 74LS04. While all are hex inverters, MC74LCX04DT uses a TSSOP-14 package (Case 948G) with specific pin assignments shown in Figure 1 of the datasheet, whereas 74HC04 typically uses SOIC-14 or PDIP-14 with different pinouts. Direct replacement requires PCB layout revision.
Does MC74LCX04DT require external pull-up or pull-down resistors on unused inputs?
Yes, per datasheet Section 4 (Recommended Operating Conditions), unused inputs of MC74LCX04DT must be tied to a valid logic level - either GND or VCC - to prevent floating states that could cause excessive current draw, oscillation, or increased EMI. Leaving inputs unconnected violates functional reliability requirements.
What is the propagation delay of MC74LCX04DT at 3.3 V supply?
At VCC = 3.0–3.6 V and TA = −40°C to +125°C, the MC74LCX04DT has a maximum propagation delay (tPLH/tPHL) of 5.2 ns, as specified in the AC Electrical Characteristics table. This value is measured under defined load conditions (CL = 50 pF, RL = 500 Ω) and ensures timing predictability in high-speed digital control loops.
Is MC74LCX04DT suitable for use in automotive applications?
Yes, the MC74LCX04DT variant with the "−Q" suffix (as indicated in the ordering information: MC74LCX04DTR2G−Q*) is AEC-Q100 qualified and PPAP capable. It meets automotive reliability standards for temperature range (−40°C to +125°C), ESD (>2000 V HBM), and latchup immunity (>100 mA), making it approved for body electronics and infotainment subsystems.
MC74LCX04DT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LCX
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.7V ~ 0.8V
- Input Logic Level - High:
- 1.7V ~ 2V
- Max Propagation Delay @ V, Max CL:
- 5.2ns @ 3.3V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MC74LCX04DT FAQ
1.How can I place an order for MC74LCX04DT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX04DT 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 MC74LCX04DT reliable?
The price and inventory of MC74LCX04DT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX04DT is usually 5 days.
3.What payment methods are accepted for MC74LCX04DT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX04DT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX04DT?
MC74LCX04DT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX04DT 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 MC74LCX04DT?
For technical support, including MC74LCX04DT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX04DT requirements.
6.How does Aetrix verify that MC74LCX04DT is sourced from the original manufacturer or authorized distributors?
All MC74LCX04DT 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 MC74LCX04DT meets industry standards.
7.What is the process for return or replacement of MC74LCX04DT?
All MC74LCX04DT units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX04DT, 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 MC74LCX04DT part is unused and in its original packaging.
Return procedure for MC74LCX04DT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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