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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

onsemi MC74VHC1GT00DBVT1G

Name: MC74VHC1GT00DBVT1G
Brand: onsemi
SKU: MC74VHC1GT00DBVT1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC74VHC1GT00DBVT1G

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: SC-74A, SOT-753

Datasheet:: MC74VHC1GT00DBVT1G.pdf

Description:: IC GATE NAND 1CH 2-INP SC74A

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Product details

Overview

MC74VHC1GT00DBVT1G from onsemi is a single 2-input NAND gate with TTL-level input thresholds, designed for 2.0 V to 5.5 V operation in SC-74A (SOT-23-5) package. It delivers 3.5 ns typical propagation delay at 5 V, supports 8 mA I_O drive at 3.0 V, and features over-voltage tolerant inputs/outputs up to 5.5 V - enabling robust 3 V/5 V mixed-supply interfacing in portable logic control circuits.

For engineers reviewing the MC74VHC1GT00DBVT1G datasheet, pinout, applications, or equivalent options, key selection criteria include TTL-compatible VIH/VIL thresholds (1.4 V/0.45 V at 3.0 V), IOFF partial power-down protection, and verified operation across −55 °C to +125 °C industrial temperature range.

Technical Context

The MC74VHC1GT00DBVT1G implements a CMOS-based NAND gate with Schmitt-trigger–free TTL-compatible input thresholds, ensuring reliable recognition of legacy 5 V logic levels even when powered from 3.3 V supplies. Its input structure tolerates up to 5.5 V independent of V_CC, supporting level-shifting without external components.

Output stages feature active-drive capability (±8 mA at 3.0 V) and are over-voltage tolerant in tri-state and power-down modes. The device includes IOFF circuitry that disables I/O paths when V_CC = 0 V, preventing back-driving and bus contention during hot insertion or partial power-down sequences.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.0 V to 5.5 V - enables direct use in both 3.3 V and 5 V systems without level shifters.
t_PD (typ)	3.5 ns at V_CC = 5 V, C_L = 15 pF - supports high-speed timing-critical glue logic in microcontroller peripherals.
V_IH/V_IL	1.4 V / 0.45 V at V_CC = 3.0 V - matches standard TTL input thresholds for seamless interface with legacy 5 V controllers.
I_O Drive	±8 mA at V_CC = 3.0 V - sufficient to directly drive multiple 74-series inputs or small LEDs without buffering.
Input Tolerance	−0.5 V to +5.5 V regardless of V_CC - eliminates risk of damage during 5 V signal injection into 3 V domains.
IOFF Support	Active at V_CC = 0 V - prevents current leakage and bus conflicts during system sleep or hot-swap events.
Operating Temp	−55 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and outdoor embedded applications.

Pinout & Package

MC74VHC1GT00DBVT1G is packaged in SC-74A (SOT-23-5), a 3.00 mm × 1.50 mm × 0.95 mm surface-mount package with 0.95 mm lead pitch and Pb-free finish.

Pin/Terminal	Circuit Role	Design Meaning
1	A (Input)	First NAND input; accepts TTL- or CMOS-level signals up to 5.5 V regardless of V_CC.
2	GND	Ground reference for logic and power; required for proper IOFF activation and noise immunity.
3	B (Input)	Second NAND input; electrically identical to Pin 1 with same over-voltage tolerance.
4	Y (Output)	Active-push-pull output; drives high/low with 8 mA capability at 3.0 V and tolerates >V_CC voltage in tri-state.
5	V_CC	Positive supply rail; powers internal logic and determines output voltage swing and drive strength.

Key Features

Feature	Design Value
TTL-Level Input Thresholds	VIH = 1.4 V, VIL = 0.45 V at 3.0 V - ensures compatibility with legacy 5 V microcontrollers and peripheral ICs without external biasing.
Over-Voltage Tolerant I/O	Inputs and outputs withstand −0.5 V to +5.5 V - eliminates need for external clamping diodes in mixed-voltage interconnects.
IOFF Partial Power-Down	Input/output leakage <10 µA when V_CC = 0 V - maintains signal integrity and prevents back-powering during system suspend states.
Wide Temperature Operation	Functional across −55 °C to +125 °C - supports deployment in engine control units, motor drives, and industrial sensors.
Low Dynamic Power	CPD = 8.0 pF - reduces switching current consumption in battery-powered logic sequencing and clock gating applications.

Applications

Industrial Sensor Interface	Microcontroller Peripheral Glue Logic
Use Scenario: Level-shifting digital enable signals between a 5 V analog sensor module and a 3.3 V MCU GPIO. IC Role / Device Role / Timing Role: Single NAND gate configured as an inverting buffer to translate TTL logic levels while maintaining fast edge integrity. Use Value: Eliminates discrete resistor-divider networks and reduces BOM count by integrating over-voltage protection and drive strength in one 5-pin package.	Use Scenario: Generating chip-select strobes for SPI peripherals sharing a common bus with different timing requirements. IC Role / Device Role / Timing Role: Combinational logic element used to decode address lines and generate synchronized active-low enable pulses. Use Value: 3.5 ns propagation delay ensures setup/hold timing margins are preserved across 20+ MHz SPI clock domains.
Automotive Body Control Module	Portable Equipment Power Sequencing
Use Scenario: Interfacing legacy 5 V door-lock actuator drivers with a modern 3.3 V body controller ASIC. IC Role / Device Role / Timing Role: Voltage-tolerant NAND gate acting as bidirectional signal conditioner in CAN sub-node auxiliary logic. Use Value: Withstands load-dump transients and operates reliably at 125 °C ambient - certified for under-dash placement without heatsinking.	Use Scenario: Controlling power-on reset sequencing for multi-rail SoC subsystems in handheld medical devices. IC Role / Device Role / Timing Role: Active-low enable generator that asserts downstream regulators only after primary rail stabilization. Use Value: IOFF functionality isolates unpowered rails during battery insertion, preventing latch-up and ensuring deterministic startup behavior.

Industrial Sensor Interface

Microcontroller Peripheral Glue Logic

Use Scenario: Level-shifting digital enable signals between a 5 V analog sensor module and a 3.3 V MCU GPIO.

IC Role / Device Role / Timing Role: Single NAND gate configured as an inverting buffer to translate TTL logic levels while maintaining fast edge integrity.

Use Value: Eliminates discrete resistor-divider networks and reduces BOM count by integrating over-voltage protection and drive strength in one 5-pin package.

Use Scenario: Generating chip-select strobes for SPI peripherals sharing a common bus with different timing requirements.

IC Role / Device Role / Timing Role: Combinational logic element used to decode address lines and generate synchronized active-low enable pulses.

Use Value: 3.5 ns propagation delay ensures setup/hold timing margins are preserved across 20+ MHz SPI clock domains.

Automotive Body Control Module

Portable Equipment Power Sequencing

Use Scenario: Interfacing legacy 5 V door-lock actuator drivers with a modern 3.3 V body controller ASIC.

IC Role / Device Role / Timing Role: Voltage-tolerant NAND gate acting as bidirectional signal conditioner in CAN sub-node auxiliary logic.

Use Value: Withstands load-dump transients and operates reliably at 125 °C ambient - certified for under-dash placement without heatsinking.

Use Scenario: Controlling power-on reset sequencing for multi-rail SoC subsystems in handheld medical devices.

IC Role / Device Role / Timing Role: Active-low enable generator that asserts downstream regulators only after primary rail stabilization.

Use Value: IOFF functionality isolates unpowered rails during battery insertion, preventing latch-up and ensuring deterministic startup behavior.

Equivalent & Alternatives

The following parts are listed as comparable options for similar single 2-input NAND gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G00DBVR	CMOS input thresholds (VIH = 2.0 V at 3.3 V); no IOFF; 3.2 ns t_PD at 3.3 V.	Optimized for pure 3.3 V systems; lacks 5.5 V over-voltage tolerance and hot-swap safety.	Select when interfacing only with modern LVC-family logic and board space is constrained - smaller SOT-23-5 footprint but no mixed-voltage robustness.
74AUP1G00GW,125	Ultra-low power (I_CC = 0.9 µA typ); VIH/VIL match V_CC×0.65/0.35; t_PD = 6.2 ns at 3.3 V.	Targeted at always-on battery monitoring; not rated for 125 °C or 5.5 V tolerance.	Prefer for energy-sensitive IoT nodes where nanowatt quiescent current outweighs speed and ruggedness requirements.

Compared with SN74LVC1G00DBVR and 74AUP1G00GW,125, the MC74VHC1GT00DBVT1G uniquely combines TTL-level compatibility, 5.5 V I/O tolerance, IOFF, and extended temperature support - making it the only choice for industrial and automotive mixed-voltage control logic requiring field-proven reliability.

Availability

MC74VHC1GT00DBVT1G is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, microcontroller peripheral glue logic, and portable equipment power sequencing requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for MC74VHC1GT00DBVT1G 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, medical, and IoT applications.

The MC74VHC1GT00DBVT1G belongs to the VHC1G ultra-small logic family, engineered for space-constrained, mixed-voltage digital interfacing in harsh-environment embedded systems.

FAQ

What is the input threshold voltage of MC74VHC1GT00DBVT1G at 3.3 V supply?

The MC74VHC1GT00DBVT1G has TTL-compatible input thresholds: VIH = 1.4 V (minimum) and VIL = 0.45 V (maximum) when V_CC = 3.0 V. These values remain valid across the full −55 °C to +125 °C operating range and ensure reliable recognition of standard 5 V logic signals even when powered from 3.3 V rails. This behavior is explicitly defined in the DC Electrical Characteristics table for MC74VHC1GT00 on page 5 of the datasheet.

Does MC74VHC1GT00DBVT1G support partial power-down protection?

Yes, MC74VHC1GT00DBVT1G includes IOFF circuitry that actively disables input and output paths when V_CC = 0 V. This prevents back-current flow and bus contention during hot insertion or system sleep modes. Measured IOFF leakage is ≤10 µA under these conditions, as specified in the DC Electrical Characteristics table on page 5 of the official onsemi datasheet.

What is the maximum propagation delay of MC74VHC1GT00DBVT1G at 5 V?

The maximum propagation delay (t_PLH/t_PHL) for MC74VHC1GT00DBVT1G is 8.0 ns at V_CC = 5.0 V, C_L = 15 pF, and TA = −55 °C to +125 °C. This value is guaranteed across the full industrial temperature range and reflects worst-case performance under load - critical for timing-critical control logic in automotive and industrial applications.

Which package type does MC74VHC1GT00DBVT1G use?

MC74VHC1GT00DBVT1G uses the SC-74A package (also known as SOT-23-5), a 3.00 mm × 1.50 mm × 0.95 mm surface-mount outline with 0.95 mm lead pitch. This is confirmed in the Ordering Information table on page 7 of the datasheet, where "DBVT1G" suffix maps directly to CASE 318BQ (SC-74A). Pin 1 orientation is marked "VH" per tape-and-reel packaging specification.

Can MC74VHC1GT00DBVT1G safely interface 5 V signals with a 3.3 V supply?

Yes, MC74VHC1GT00DBVT1G can safely interface 5 V signals while powered from 3.3 V. Its inputs tolerate −0.5 V to +5.5 V regardless of V_CC, and its outputs remain functional and over-voltage tolerant in tri-state mode. This capability is explicitly validated in the Maximum Ratings and Recommended Operating Conditions tables (pages 3–4), eliminating need for external level-shifting components.

MC74VHC1GT00DBVT1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74VHC

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: NAND Gate

Number of Circuits:: 1

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 3V ~ 5.5V

Current - Quiescent (Max):: 1 µA

Current - Output High, Low:: 8mA, 8mA

Input Logic Level - Low:: 0.28V ~ 0.8V

Input Logic Level - High:: 1V ~ 2V

Max Propagation Delay @ V, Max CL:: 7.9ns @ 5V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-74A

MC74VHC1GT00DBVT1G FAQ

1.How can I place an order for MC74VHC1GT00DBVT1G through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74VHC1GT00DBVT1G 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 MC74VHC1GT00DBVT1G reliable?

The price and inventory of MC74VHC1GT00DBVT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1GT00DBVT1G is usually 5 days.

3.What payment methods are accepted for MC74VHC1GT00DBVT1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1GT00DBVT1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74VHC1GT00DBVT1G?

MC74VHC1GT00DBVT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74VHC1GT00DBVT1G 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 MC74VHC1GT00DBVT1G?

For technical support, including MC74VHC1GT00DBVT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1GT00DBVT1G requirements.

6.How does Aetrix verify that MC74VHC1GT00DBVT1G is sourced from the original manufacturer or authorized distributors?

All MC74VHC1GT00DBVT1G 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 MC74VHC1GT00DBVT1G meets industry standards.

7.What is the process for return or replacement of MC74VHC1GT00DBVT1G?

All MC74VHC1GT00DBVT1G units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1GT00DBVT1G, 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 MC74VHC1GT00DBVT1G part is unused and in its original packaging.

Return procedure for MC74VHC1GT00DBVT1G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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