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onsemi 74VHCT04AMX
- Part No.:
- 74VHCT04AMX
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74VHCT04AMX.pdf
- Description:
- IC INVERTER 6CH 1-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,085
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Product details
Overview
74VHCT04AMX from ON Semiconductor is a hex inverter IC designed for 5V TTL-compatible digital logic interfacing, featuring 4.7ns typical propagation delay at 5V, ±25mA output drive capability, and 2µA maximum quiescent supply current at 25°C. It operates across –40°C to +85°C and supports mixed-voltage system interfacing between 3V and 5V domains.
For engineers reviewing the 74VHCT04AMX datasheet, pinout, applications, or equivalent options, key selection criteria include its CMOS input structure with 2.0V VIH/0.8V VIL thresholds, power-down protection on all I/O, low-noise VOLP ≤1.0V, and compatibility with legacy 74HCT04 layouts and timing requirements.
Technical Context
The 74VHCT04AMX implements six independent CMOS inverter gates using silicon-gate technology, with three-stage buffered output architecture that enhances noise immunity and output stability. Its input protection circuitry allows safe application of 0V–7V signals regardless of VCC state, enabling robust operation during power sequencing or battery-backup transitions.
It is specified for 4.5V–5.5V supply operation, with guaranteed DC performance over full temperature range including VIH = 2.0V (min), VIL = 0.8V (max), VOH ≥3.94V at –8mA, and VOL ≤0.44V at 8mA - meeting standard HCT-level interface margins while maintaining sub-µA static current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - ensures compatibility with regulated 5V systems and tolerance to rail variation. |
| Propagation Delay | 4.7ns (typ) at CL = 15pF, VCC = 5V - enables high-speed signal inversion in clock distribution or data path conditioning. |
| Input Thresholds | VIH = 2.0V, VIL = 0.8V - provides TTL-compatible logic recognition without level-shifting in 5V environments. |
| Output Drive | ±8mA at VOH/VOL limits - supports direct fanout to multiple 74-series inputs or small capacitive loads. |
| Quiescent Current | 2µA (max) at 25°C - minimizes standby power in battery-backed or always-on control logic. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded control and automotive under-hood auxiliary logic. |
| Input Protection | 0V to 7V input tolerance with VCC = 0V - prevents latch-up or damage during hot-plug or brown-out conditions. |
Pinout & Package
74VHCT04AMX is housed in a 14-lead SOIC package (JEDEC MS-012, 0.150" narrow body), with 1.27mm lead pitch and RoHS-compliant lead-free finish per J-STD-020B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Inverter Input (A1–A6) | Dedicated CMOS input per gate; internally protected against overvoltage and floating states. |
| 2, 4, 6, 8, 10, 12 | Inverter Output (Y1–Y6) | Pull-up/pull-down complementary output stage; supports active drive in both logic states. |
| 7 | GND | Ground reference for all internal circuitry and I/O; must be connected to system common ground plane. |
| 14 | VCC | Positive supply terminal; decoupling capacitor (0.1µF) required within 10mm of this pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| High-speed CMOS inversion | 4.7ns typical tPD enables use in 100+ MHz clock buffering and data path cleanup. |
| TTL-compatible input thresholds | 2.0V VIH / 0.8V VIL ensures reliable recognition of standard 5V TTL outputs without external biasing. |
| Power-down I/O protection | Inputs and outputs remain high-impedance and non-destructive when VCC = 0V - critical for hot-swap interfaces. |
| Low dynamic noise | VOLP ≤1.0V (max) reduces ground bounce and crosstalk in dense PCB layouts with shared return paths. |
| Pin/function compatibility | Direct drop-in replacement for 74HCT04 in existing designs - same pinout, same logic function, same footprint. |
Applications
| Industrial Control Logic | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Signal polarity correction and noise filtering in PLC I/O modules handling 24V sensor inputs via optocoupler interfaces. IC Role / Device Role / Timing Role: Inverting buffer stage converting opto-isolator open-collector outputs to clean 5V CMOS logic levels. Use Value: Enables direct connection to microcontroller inputs without pull-up resistors or level translators, reducing BOM count and layout area. |
Use Scenario: Expanding available active-low reset or interrupt lines from an MCU with limited native GPIO. IC Role / Device Role / Timing Role: Logic-level inverter providing inverted enable/reset signals for peripheral ICs requiring active-low control. Use Value: Delivers deterministic 4.7ns delay and ±8mA drive - sufficient to meet setup/hold timing of SPI peripherals and memory controllers. |
| Legacy System Interface | Power Sequencing Monitor |
Use Scenario: Interfacing modern 3.3V FPGA I/O banks to legacy 5V backplane logic in telecom line cards. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant inverter used in isolated direction-control paths for parallel bus arbitration. Use Value: 0V–7V input tolerance allows safe operation during 3.3V/5V rail ramp-up mismatch, eliminating need for external clamping diodes. |
Use Scenario: Monitoring undervoltage lockout (UVLO) signals from PMICs to generate synchronized system reset pulses. IC Role / Device Role / Timing Role: Inverting comparator output to convert UVLO 'active-high' fault into 'active-low' reset assertion. Use Value: Sub-µA ICC ensures negligible impact on standby current budget; power-down protection prevents false resets during VCC ramp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT04DR | Identical logic function and pinout; slightly higher ICC (4µA max) and longer tPD (6ns typ at CL=15pF). | Same industrial control and interface roles; less suitable for ultra-low-power standby modes. | Select when sourcing from TI's broad distribution network or when qualifying alternate suppliers for long-term BOM resilience. |
| MC74VHC04DT | Higher speed (tPD = 3.5ns typ), but narrower VCC range (2V–5.5V); no power-down protection on inputs/outputs. | Better for high-frequency clock inversion, but unsafe in hot-plug or multi-rail sequencing scenarios. | Prefer only where speed is critical and power sequencing is fully controlled; avoid in battery backup or field-replaceable modules. |
Compared with SN74HCT04DR and MC74VHC04DT, the 74VHCT04AMX uniquely balances low static power, robust I/O protection, and proven 5V system compatibility - making it optimal for industrial and infrastructure equipment requiring reliability over raw speed.
Availability
74VHCT04AMX is available at Aetrix Electronics and suitable for industrial control logic, microcontroller GPIO expansion, and legacy system interface applications requiring stable component supply and long-term lifecycle support.
Supply support for 74VHCT04AMX 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, cloud computing, and IoT applications.
The 74VHCT04AMX belongs to ON Semiconductor's legacy logic portfolio inherited from Fairchild, engineered for robust 5V digital interfacing with emphasis on noise immunity, power-down safety, and backward compatibility in mission-critical industrial systems.
FAQ
What is the operating voltage range for the 74VHCT04AMX?
The 74VHCT04AMX operates over a supply voltage range of 4.5V to 5.5V. This range ensures compatibility with standard 5V power rails while accommodating typical regulator tolerances. Operation outside this range is not guaranteed and may result in undefined logic behavior or increased ICC. The device's input pins tolerate 0V to 7V regardless of VCC, but VCC itself must remain within specification for correct functional operation.
Is the 74VHCT04AMX pin-compatible with the 74HCT04?
Yes, the 74VHCT04AMX is pin- and function-compatible with the 74HCT04. Both devices share identical 14-pin SOIC packaging, identical pin assignments (inputs on odd pins 1/3/5/9/11/13, outputs on even pins 2/4/6/8/10/12), and identical truth table behavior. This allows direct substitution in existing designs without PCB modification, provided the 74VHCT04AMX's lower ICC and improved noise immunity are acceptable.
Does the 74VHCT04AMX support mixed-voltage interfacing?
Yes, the 74VHCT04AMX supports mixed-voltage interfacing through its wide input voltage tolerance (0V to 7V) and power-down protection. When VCC = 0V, inputs and outputs remain non-destructive up to 7V, enabling safe connection to live 3.3V or 5V buses during power-up/down sequences. This makes the 74VHCT04AMX suitable for bridging 3V and 5V domains without external level shifters.
What is the maximum output current rating for the 74VHCT04AMX?
The 74VHCT04AMX is rated for ±25mA DC output current per pin, with guaranteed VOL ≤0.44V at IOL = 8mA and VOH ≥3.94V at IOH = –8mA under recommended operating conditions. These values ensure reliable drive into standard 74-series fanout loads or moderate capacitive loads (<50pF). Exceeding ±8mA continuously may degrade VOL/VOH margins and increase junction temperature.
How does the 74VHCT04AMX handle unused inputs?
Unused inputs on the 74VHCT04AMX must be tied HIGH or LOW - they must not float. Floating inputs can cause excessive ICC, oscillation, or unpredictable output states due to CMOS input sensitivity. The datasheet explicitly requires this per Note 4 in Recommended Operating Conditions. Tying unused inputs to VCC or GND via 1kΩ resistors is acceptable; direct connection is preferred for lowest noise and power.
74VHCT04AMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHCT
- 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:
- 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-SOIC
74VHCT04AMX FAQ
1.How can I place an order for 74VHCT04AMX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT04AMX 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 74VHCT04AMX reliable?
The price and inventory of 74VHCT04AMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT04AMX is usually 5 days.
3.What payment methods are accepted for 74VHCT04AMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT04AMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT04AMX?
74VHCT04AMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT04AMX 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 74VHCT04AMX?
For technical support, including 74VHCT04AMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT04AMX requirements.
6.How does Aetrix verify that 74VHCT04AMX is sourced from the original manufacturer or authorized distributors?
All 74VHCT04AMX 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 74VHCT04AMX meets industry standards.
7.What is the process for return or replacement of 74VHCT04AMX?
All 74VHCT04AMX units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT04AMX, 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 74VHCT04AMX part is unused and in its original packaging.
Return procedure for 74VHCT04AMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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