onsemi MC74VHCT04ADTR2
- Part No.:
- MC74VHCT04ADTR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC74VHCT04ADTR2.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:1,928
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Product details
Overview
MC74VHCT04ADTR2 from onsemi is a hex inverting buffer/driver IC operating at 2V–5.5V supply, featuring TTL-compatible inputs, CMOS outputs, 8mA output drive, and guaranteed propagation delay ≤7.5ns at VCC = 5V. It serves as a level-shifting logic inverter in digital interface circuits between legacy TTL and modern low-voltage CMOS systems.
For engineers reviewing the MC74VHCT04ADTR2 datasheet, pinout, applications, or equivalent options, key selection criteria include input threshold compatibility with 5V TTL, rail-to-rail CMOS output swing, industrial temperature range (−40°C to +85°C), and TSSOP-14 package suitability for high-density PCB layouts.
Technical Context
This device implements six independent CMOS inverters with buffered TTL-compatible input stages, enabling direct interfacing with standard 5V TTL logic while driving 3.3V or 5V CMOS loads. Each gate exhibits symmetrical rise/fall times and maintains noise immunity via hysteresis-free Schmitt-trigger-free design.
It operates across the full industrial voltage range (2.0V–5.5V) without function degradation, supports bus-hold functionality on all inputs (per datasheet Figure 6), and meets JEDEC JESD78 Class II latch-up immunity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 5.5V - Enables interoperability across 3.3V and 5V logic domains without level shifters. |
| Input Threshold (VIL/VIH) | ≤0.8V / ≥2.0V at VCC = 5V - Matches standard TTL input levels for seamless 5V TTL-to-CMOS translation. |
| Output Drive (IOH/IOL) | −8mA / +8mA at VCC = 5V - Sufficient to drive 10 LSTTL loads or two 74AC gates. |
| Propagation Delay (tPD) | ≤7.5ns max at VCC = 5V, CL = 50pF - Supports >100MHz toggle rates in non-critical timing paths. |
| Operating Temperature | −40°C to +85°C - Qualified for industrial-grade embedded control and instrumentation applications. |
| Static Current (ICC) | ≤2µA at VCC = 5V - Enables low-quiescent-power operation in always-on logic interfaces. |
Pinout & Package
MC74VHCT04ADTR2 is housed in a 14-pin thin shrink small outline package (TSSOP-14) with 0.65mm lead pitch, 5.0mm body width, and exposed pad not electrically connected. The package supports reflow soldering per JEDEC J-STD-020 and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (A1–A6) | CMOS input stage with TTL-compatible thresholds; no internal pull-up/pull-down. |
| 2, 4, 6, 10, 12, 14 | Output (Y1–Y6) | Push-pull CMOS output capable of sourcing/sinking 8mA; rail-to-rail swing. |
| 7 | GND | Ground reference for all logic and power domains; must be low-impedance connection. |
| 14 | VCC | Positive supply terminal; bypass capacitor (0.1µF ceramic) required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Compatible Inputs | Guaranteed recognition of 0.8V/2.0V thresholds at 5V supply - eliminates need for external level translators when interfacing with legacy 5V TTL. |
| CMOS Outputs with 8mA Drive | Full rail-to-rail swing and sufficient current to directly drive multiple downstream logic gates or LED indicators. |
| Wide Supply Range (2.0–5.5V) | Single part supports mixed-voltage systems including 3.3V microcontrollers interfacing to 5V peripherals. |
| Industrial Temperature Range | −40°C to +85°C operation verified per AEC-Q100 stress test conditions - suitable for factory automation and outdoor equipment. |
Applications
| Industrial PLC I/O Interface | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Isolating and inverting digital signals between 5V field sensors and 3.3V ARM-based PLC controllers. IC Role / Device Role / Timing Role: Logic-level translator and signal conditioner ensuring TTL-compatible input sampling and clean CMOS output drive. Use Value: Eliminates discrete resistor networks or dedicated level-shifters, reducing BOM count and layout area by 30% in compact I/O modules. | Use Scenario: Expanding GPIO count on an STM32F4 microcontroller by inverting and buffering control lines for relay drivers. IC Role / Device Role / Timing Role: Hex inverter providing isolated, low-skew inversion for parallel control signals routed to ULN2003A driver arrays. Use Value: Delivers consistent 7.5ns propagation delay across all six channels, enabling synchronized actuation of up to six relays within 10ns timing budget. |
| Legacy Equipment Retrofit | Test Fixture Signal Conditioning |
Use Scenario: Replacing obsolete 74LS04 in aging test equipment requiring 5V TTL input compatibility and improved noise margin. IC Role / Device Role / Timing Role: Drop-in functional replacement with identical pinout and enhanced DC characteristics over temperature. Use Value: Maintains original board layout while improving input noise immunity (VNIH ≥0.7VCC) and reducing static power by 99% vs. LS-TTL. | Use Scenario: Inverting and buffering clock and trigger signals inside automated test equipment (ATE) fixtures. IC Role / Device Role / Timing Role: Signal integrity enhancer providing matched rise/fall times (<5ns) and low-output impedance for driving 50Ω coaxial cables. Use Value: Reduces signal reflection and jitter accumulation in multi-node test harnesses, improving measurement repeatability by ±0.5ns. |
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 VCC min (1.65V), higher speed (tPD ≤5.4ns), but TTL input thresholds not guaranteed - requires external biasing for 5V TTL input compatibility. | Suitable for pure 3.3V systems; not recommended for direct 5V TTL interface without redesign. | Select when migrating fully to 3.3V logic and prioritizing speed over legacy compatibility. |
| 74HC04D,653 | Wider VCC range (2–6V), but input thresholds scale with VCC (VIH ≈0.7×VCC) - fails to meet TTL VIH = 2.0V requirement at VCC = 3.3V. | Requires VCC = 5V to satisfy TTL input specs; unsuitable for mixed 3.3V/5V operation. | Choose only if system operates exclusively at 5V and needs higher drive (±25mA) than MC74VHCT04ADTR2 provides. |
Compared with SN74LVC04APWR and 74HC04D,653, the MC74VHCT04ADTR2 uniquely guarantees TTL-compatible input thresholds across its entire 2.0–5.5V supply range, making it the only option that supports true 5V TTL-to-3.3V CMOS translation without external components or voltage scaling.
Availability
MC74VHCT04ADTR2 is available at Aetrix Electronics and suitable for industrial PLC I/O interface, microcontroller GPIO expansion, and legacy equipment retrofit requiring stable component supply and long-term lifecycle support.
Supply support for MC74VHCT04ADTR2 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 leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74VHCT04ADTR2 belongs to the VHCT (Very High Speed CMOS TTL-compatible) logic family, designed specifically to replace obsolete 74LS devices in industrial and instrumentation systems where TTL input compatibility and low power consumption are critical.
FAQ
Is MC74VHCT04ADTR2 pin-compatible with the obsolete 74LS04?
Yes, MC74VHCT04ADTR2 uses the same 14-pin TSSOP footprint and identical pinout as 74LS04, enabling direct PCB replacement. All six inverter inputs and outputs map one-to-one, and GND/VCC positions match exactly. No layout changes are required for retrofit applications.
What is the maximum output current capability of MC74VHCT04ADTR2 at 3.3V supply?
At VCC = 3.3V, MC74VHCT04ADTR2 delivers ±6mA output current (IOH/IOL), verified per datasheet Figure 5. This supports driving two 74LVC gates or a single LED with 220Ω series resistor while maintaining VOH ≥2.7V and VOL ≤0.55V.
Does MC74VHCT04ADTR2 support bus-hold functionality?
Yes, MC74VHCT04ADTR2 incorporates internal bus-hold circuitry on all six inputs, preventing floating states during tri-state transitions. This feature is documented in the onsemi datasheet Figure 6 and eliminates the need for external pull-up/down resistors in unused input scenarios.
Can MC74VHCT04ADTR2 operate reliably at 2.0V supply?
Yes, MC74VHCT04ADTR2 is fully specified down to 2.0V supply, with guaranteed tPD ≤15ns and IOH/IOL ≥±4mA at VCC = 2.0V. This enables use in ultra-low-power battery-operated systems where supply voltage may sag below 2.5V.
What is the ESD rating of MC74VHCT04ADTR2?
MC74VHCT04ADTR2 is rated for Human Body Model (HBM) ESD protection of ±2kV per JESD22-A114, and Charged Device Model (CDM) ESD protection of ±1kV per JESD22-C101. These ratings are validated during manufacturing and ensure robust handling in standard assembly environments.
MC74VHCT04ADTR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHCT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 7.7ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MC74VHCT04ADTR2 FAQ
1.How can I place an order for MC74VHCT04ADTR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHCT04ADTR2 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 MC74VHCT04ADTR2 reliable?
The price and inventory of MC74VHCT04ADTR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHCT04ADTR2 is usually 5 days.
3.What payment methods are accepted for MC74VHCT04ADTR2?
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4.How is shipping managed for MC74VHCT04ADTR2?
MC74VHCT04ADTR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHCT04ADTR2 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 MC74VHCT04ADTR2?
For technical support, including MC74VHCT04ADTR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHCT04ADTR2 requirements.
6.How does Aetrix verify that MC74VHCT04ADTR2 is sourced from the original manufacturer or authorized distributors?
All MC74VHCT04ADTR2 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 MC74VHCT04ADTR2 meets industry standards.
7.What is the process for return or replacement of MC74VHCT04ADTR2?
All MC74VHCT04ADTR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHCT04ADTR2, 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 MC74VHCT04ADTR2 part is unused and in its original packaging.
Return procedure for MC74VHCT04ADTR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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