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onsemi MC74VHC1G14DTT1
- Part No.:
- MC74VHC1G14DTT1
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MC74VHC1G14DTT1.pdf
- Description:
- IC INVERTER SGL SCHMITT 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
MC74VHC1G14DTT1 from onsemi is a single Schmitt-trigger inverter IC designed for signal conditioning and noise-immune digital interfacing. It operates from 2.0 V to 5.5 V, delivers 4.0 ns typical propagation delay at 5 V, features CMOS-level input thresholds (VT+ = 2.2–3.85 V, VT− = 0.9–1.65 V), and supports 5.5 V overvoltage-tolerant I/O for mixed-voltage system interfacing - e.g., bridging 3 V logic to legacy 5 V circuits.
For engineers reviewing the MC74VHC1G14DTT1 datasheet, pinout, applications, or equivalent options, key selection considerations include its Schmitt-trigger hysteresis (0.3–1.6 V), ±8 mA output drive at 3.0 V, IOFF partial power-down capability, SC-74A (SOT-23-5) package compatibility, and AEC-Q100 qualification for automotive use cases.
Technical Context
The MC74VHC1G14DTT1 implements a three-stage buffered inverter architecture with Schmitt-trigger input hysteresis to reject noise on slow-rising or noisy signals. Its input structure tolerates up to 5.5 V regardless of VCC, enabling safe level translation between 3 V and 5 V domains without external clamping.
Output stages support tri-state behavior under power-down conditions via IOFF, and internal protection diodes allow operation during hot insertion or battery-backup scenarios where VCC = 0 V while inputs/outputs remain active. The device is specified across −55 °C to +125 °C and meets AEC-Q100 Grade 1 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - enables direct integration into both 3.3 V and 5 V systems without level shifters. |
| tPD (Typ) | 4.0 ns at VCC = 5 V, CL = 15 pF - ensures fast edge regeneration for clock clean-up or debouncing high-frequency signals. |
| Input Thresholds | VT+ = 2.2–3.85 V, VT− = 0.9–1.65 V (CMOS-level) - provides ≥0.3 V hysteresis for reliable noise rejection on slow or noisy inputs. |
| I/O Overvoltage Tolerance | Up to 5.5 V independent of VCC - allows safe interfacing of 5 V sensors or peripherals to 3 V microcontrollers. |
| IOFF Leakage | <10 µA at VCC = 0 V - prevents back-powering or contention when upstream/downstream sections are powered down. |
| Output Drive | ±8 mA at VCC = 3.0 V - sufficient to directly drive multiple standard CMOS loads or small LEDs without buffering. |
| Operating Temp | −55 °C to +125 °C - qualified for under-hood automotive, industrial control, and extended-temperature embedded applications. |
Pinout & Package
MC74VHC1G14DTT1 is packaged in SC-74A (SOT-23-5), a 3.0 mm × 1.5 mm surface-mount package with 0.95 mm height and 0.95 mm lead pitch. Pin 1 is marked with a dot or beveled edge; the package is Pb-free, RoHS-compliant, and moisture-sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Schmitt-trigger input | Accepts noisy or slow-rising digital signals; hysteresis prevents chatter near threshold transitions. |
| 2 (GND) | Ground reference | Return path for all internal circuitry and output current; must be low-impedance for stable noise immunity. |
| 3 (NC) | No-connect terminal | Internally unconnected; must be left floating or tied to GND per layout best practices - no functional role. |
| 4 (Y) | Inverted Schmitt output | Provides rail-to-rail CMOS-compatible output with buffered drive; capable of sourcing/sinking 8 mA at 3 V. |
| 5 (VCC) | Positive supply | Power rail for internal logic and output stage; supports 2.0–5.5 V operation and enables mixed-voltage interface design. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS-level Schmitt trigger | Enables robust signal conditioning of slow edges (e.g., mechanical switch bounce, RC oscillator outputs) without external components. |
| 5.5 V overvoltage-tolerant I/O | Eliminates need for external clamping diodes when interfacing 5 V sensors or legacy peripherals to 3 V controllers. |
| IOFF partial power-down protection | Prevents current backflow and bus contention when VCC is off - critical for hot-swap and modular subsystem designs. |
| SC-74A footprint compatibility | Matches industry-standard SOT-23-5 layout; enables drop-in replacement in space-constrained PCBs targeting miniaturized modules. |
| AEC-Q100 Grade 1 qualified | Validated for automotive applications including body control, lighting, and infotainment subsystems operating up to +125 °C junction temperature. |
Applications
| Switch Debouncing | Waveform Shaping |
|---|---|
Use Scenario: Mechanical push-button or rotary encoder signals exhibit contact bounce lasting 1–10 ms, causing false interrupts in microcontrollers. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acts as a hardware filter, converting noisy transitions into clean, monotonic edges with defined hysteresis. Use Value: Eliminates need for software debouncing delays or external RC networks, reducing firmware complexity and improving real-time response. |
Use Scenario: Sine-wave or triangle-wave oscillator outputs require square-wave conversion for clock distribution or digital triggering. IC Role / Device Role / Timing Role: Inverter with hysteresis reshapes analog waveforms into precise digital clocks with controlled rise/fall times and jitter suppression. Use Value: Provides sub-5 ns propagation delay stability across voltage/temperature, enabling reliable timing in sensor synchronization and PLL reference paths. |
| Mixed-Voltage Interface | Automotive Sensor Conditioning |
Use Scenario: 3.3 V MCU interfaces with 5 V industrial sensors (e.g., analog-output pressure transducers with open-collector status lines). IC Role / Device Role / Timing Role: Level-shifting buffer that accepts 5 V inputs while powered from 3.3 V, preserving logic polarity and noise margin. Use Value: Avoids dedicated level translators or resistor dividers, saving BOM cost and board area while maintaining 5.5 V input tolerance and ESD robustness. |
Use Scenario: Engine control unit receives low-amplitude, noisy crankshaft position signals from variable-reluctance sensors. IC Role / Device Role / Timing Role: Signal conditioner that amplifies and squares raw analog pulses into clean TTL/CMOS-compatible timing edges. Use Value: Leverages wide temperature range (−55 °C to +125 °C) and AEC-Q100 qualification to ensure reliable engine timing under extreme thermal cycling and EMI exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G14DBVR | Lower VCC min (1.65 V), slightly slower tPD (5.5 ns typ @ 3.3 V), same SC-70-5 package; lacks AEC-Q100 qualification. | Preferred for portable battery-powered systems requiring ultra-low voltage operation but not automotive-grade reliability. | Select SN74LVC1G14DBVR only if 1.65–1.8 V operation is required and AEC-Q100 compliance is unnecessary. |
| 74AUP1G14GW,125 | Ultra-low power (ICC = 0.9 µA max), wider VCC range (0.8–3.6 V), smaller XSON-6 package; not overvoltage tolerant beyond VCC. | Suitable for always-on IoT nodes needing nanowatt standby, but cannot interface 5 V signals without external protection. | Choose 74AUP1G14GW,125 for energy-critical wearables or sensor hubs where 5 V tolerance is irrelevant and size is paramount. |
Compared with SN74LVC1G14DBVR and 74AUP1G14GW,125, the MC74VHC1G14DTT1 uniquely combines 5.5 V overvoltage tolerance, AEC-Q100 qualification, and 4.0 ns speed at 5 V - making it the only option among the three validated for automotive 5 V sensor interfacing with guaranteed noise immunity and thermal robustness.
Availability
MC74VHC1G14DTT1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer appliance control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74VHC1G14DTT1 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 manufacturer specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74VHC1G14DTT1 belongs to onsemi's VHC logic family, engineered for high-speed, low-noise signal conditioning in space-constrained, thermally demanding environments - particularly where mixed-voltage interoperability and automotive reliability are mandatory.
FAQ
What is the function of the NC pin on MC74VHC1G14DTT1?
The NC (No Connect) pin on MC74VHC1G14DTT1 is internally unconnected and serves no electrical function. It must be left floating or tied to GND per PCB layout guidelines to avoid parasitic coupling; it does not support configuration, enable, or bias functions. This pin exists solely for mechanical symmetry and package compatibility with other SC-74A devices.
Does MC74VHC1G14DTT1 support 5 V input signals when powered from 3.3 V?
Yes, MC74VHC1G14DTT1 supports 5 V input signals even when VCC = 3.3 V due to its overvoltage-tolerant input structure rated to 5.5 V. This allows direct connection of 5 V sensors or legacy peripherals without external clamping diodes or level shifters, simplifying interface design in mixed-voltage systems.
What is the minimum supply voltage for reliable operation of MC74VHC14DTT1?
The MC74VHC1G14DTT1 operates reliably from 2.0 V to 5.5 V. At 2.0 V, it maintains full functionality including Schmitt-trigger hysteresis, 4 mA output drive, and specified propagation delay - verified across −55 °C to +125 °C. Operation below 2.0 V is not guaranteed and may result in undefined logic states or increased ICC.
Is MC74VHC1G14DTT1 pin-compatible with MC74VHC1GT14 variants?
No, MC74VHC1G14DTT1 is not pin-compatible with MC74VHC1GT14 variants because they share identical SC-74A pinouts but differ in input threshold characteristics: MC74VHC1G14DTT1 uses CMOS-level thresholds (VT+ ≈ 2.2–3.85 V), while MC74VHC1GT14 uses TTL-level thresholds (VT+ ≈ 1.6–2.1 V). Electrical substitution requires validation of input signal levels.
What packaging and marking details define MC74VHC1G14DTT1?
MC74VHC1G14DTT1 is supplied in SC-74A (SOT-23-5) package, case 318BQ, with Pb-free finish and RoHS compliance. Marking consists of "VA" followed by date code (e.g., "VA123"), where "VA" identifies the MC74VHC1G14 variant. Tape-and-reel packaging is 3000 units per reel, with Q4 orientation per onsemi ordering documentation.
MC74VHC1G14DTT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 1
- Number of Inputs:
- 1
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.9V ~ 1.65V
- Input Logic Level - High:
- 2.2V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 10.6ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
MC74VHC1G14DTT1 FAQ
1.How can I place an order for MC74VHC1G14DTT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1G14DTT1 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 MC74VHC1G14DTT1 reliable?
The price and inventory of MC74VHC1G14DTT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1G14DTT1 is usually 5 days.
3.What payment methods are accepted for MC74VHC1G14DTT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1G14DTT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1G14DTT1?
MC74VHC1G14DTT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1G14DTT1 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 MC74VHC1G14DTT1?
For technical support, including MC74VHC1G14DTT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1G14DTT1 requirements.
6.How does Aetrix verify that MC74VHC1G14DTT1 is sourced from the original manufacturer or authorized distributors?
All MC74VHC1G14DTT1 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 MC74VHC1G14DTT1 meets industry standards.
7.What is the process for return or replacement of MC74VHC1G14DTT1?
All MC74VHC1G14DTT1 units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1G14DTT1, 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 MC74VHC1G14DTT1 part is unused and in its original packaging.
Return procedure for MC74VHC1G14DTT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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