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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

onsemi M74VHC1G125DTT1G

Name: M74VHC1G125DTT1G
Brand: onsemi
SKU: M74VHC1G125DTT1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M74VHC1G125DTT1G

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: SOT-23-5 Thin, TSOT-23-5

Datasheet:: M74VHC1G125DTT1G.pdf

Description:: IC BUFFER NON-INVERT 5.5V 5TSOP

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Product details

Overview

M74VHC1G125DTT1G from onsemi is a single non-inverting 3-state buffer IC designed for level-shifting and bus isolation in mixed-voltage systems. It operates from 2.0 V to 5.5 V, delivers 3.5 ns propagation delay at 5 V (typ), supports ±8 mA output drive at 3.0 V, and features over-voltage tolerant inputs/outputs up to 5.5 V - enabling reliable interfacing between 3 V and 5 V logic domains in portable and industrial control applications.

For engineers reviewing the M74VHC1G125DTT1G datasheet, pinout, applications, or equivalent options, key selection considerations include its CMOS-level input thresholds, IOFF partial power-down protection, SC-74A (SOT-25) package compatibility, and guaranteed operation across −55 °C to +125 °C.

Technical Context

The M74VHC1G125DTT1G implements a three-stage buffered architecture with a controlled 3-state output stage, delivering high noise immunity and stable signal integrity. Its input structure tolerates voltages up to 5.5 V independent of VCC, supporting robust 5 V-to-3 V bidirectional interfacing.

IOFF circuitry actively disables I/O leakage when VCC = 0 V, preventing back-powering and enabling hot-insertion capability. The device is specified for full functionality across −55 °C to +125 °C and meets AEC-Q100 stress test requirements when ordered with the −Q suffix.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	2.0 V to 5.5 V - enables direct use in both 3.3 V and 5 V systems without level translators.
tPD (typ)	3.5 ns at VCC = 5 V, CL = 15 pF - supports high-speed data routing in compact timing-critical paths.
Input Thresholds	CMOS-level (VIH = 3.85 V, VIL = 1.65 V @ VCC = 5.5 V) - ensures clean switching with standard CMOS drivers.
Output Drive	±8 mA at VCC = 3.0 V - sufficient to drive multiple 74VHC loads or moderate PCB trace capacitance.
Over-Voltage Tolerance	Inputs/outputs withstand up to 5.5 V regardless of VCC - eliminates need for external clamping diodes in mixed-supply interfaces.
IOFF Leakage	≤10 µA at VCC = 0 V - prevents current backflow during partial power-down, critical for system sleep modes.
Operating Temp	−55 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and extended-temperature embedded use.

Pinout & Package

Package: SC-74A (SOT-25), 5-pin, 3.0 mm × 1.5 mm × 0.95 mm body, 0.95 mm pitch, Pb-free, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1 - A	Data Input	Non-inverting logic input; accepts 0–5.5 V regardless of VCC; CMOS threshold compatible.
2 - GND	Ground Reference	Primary return path for supply and signal currents; must be low-impedance for noise immunity.
3 - OE	Output Enable Control	Active-low 3-state enable; drives Y high-impedance when high; TTL/CMOS-compatible input.
4 - Y	Buffered Output	Non-inverted, 3-state output; supports bus sharing; over-voltage tolerant up to 5.5 V.
5 - VCC	Positive Supply	Power rail for internal logic and output stage; decoupling capacitor required near pin.

Key Features

Feature	Design Value
Wide VCC range	2.0 V to 5.5 V operation - eliminates separate voltage translators in multi-rail designs.
IOFF partial power-down	Sub-10 µA leakage at VCC = 0 V - enables safe insertion into live backplanes or powered subsystems.
Over-voltage tolerant I/O	5.5 V absolute max on A, Y, OE - protects against supply sequencing mismatches and hot-swap transients.
High noise immunity	Three-stage buffered output with hysteresis-free design - reduces susceptibility to ground bounce and EMI.
Low dynamic power	CPD = 8.0 pF - minimizes switching current in battery-powered or thermally constrained applications.

Applications

Industrial Sensor Interface	Automotive Body Control Module
Use Scenario: Isolating analog sensor ADC interface lines from noisy microcontroller buses in factory automation PLCs. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing bidirectional voltage translation and bus contention prevention. Use Value: Enables direct connection of 5 V sensors to 3.3 V MCU GPIOs while maintaining signal integrity and meeting −55 °C to +125 °C operating range.	Use Scenario: Enabling/disabling communication lines between door module MCUs and central body controller via LIN or CAN sub-buses. IC Role / Device Role / Timing Role: Bus isolation gate with IOFF support for safe firmware updates during partial system power-down. Use Value: Prevents back-powering of unpowered modules during reprogramming; certified AEC-Q100 capable with −Q variants.
Portable Medical Device Data Path	Test Equipment Signal Routing
Use Scenario: Routing real-time patient monitoring signals (ECG, SpO₂) between low-power 1.8 V analog front-end and 3.3 V processing SoC. IC Role / Device Role / Timing Role: Low-latency, low-leakage signal repeater with precise 3-state control for multiplexed channel selection. Use Value: 3.5 ns tPD ensures minimal timing skew; 0.1 V VOL at 8 mA guarantees clean logic levels across battery voltage range.	Use Scenario: Configurable signal path switching in automated test equipment (ATE) where DUT I/O lines must be isolated during calibration sequences. IC Role / Device Role / Timing Role: Precision-controlled 3-state gate synchronizing with test pattern generator clocks. Use Value: Guaranteed 5.5 V over-voltage tolerance protects expensive instrumentation ports from accidental DUT fault conditions.

Industrial Sensor Interface

Automotive Body Control Module

Use Scenario: Isolating analog sensor ADC interface lines from noisy microcontroller buses in factory automation PLCs.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing bidirectional voltage translation and bus contention prevention.

Use Value: Enables direct connection of 5 V sensors to 3.3 V MCU GPIOs while maintaining signal integrity and meeting −55 °C to +125 °C operating range.

Use Scenario: Enabling/disabling communication lines between door module MCUs and central body controller via LIN or CAN sub-buses.

IC Role / Device Role / Timing Role: Bus isolation gate with IOFF support for safe firmware updates during partial system power-down.

Use Value: Prevents back-powering of unpowered modules during reprogramming; certified AEC-Q100 capable with −Q variants.

Portable Medical Device Data Path

Test Equipment Signal Routing

Use Scenario: Routing real-time patient monitoring signals (ECG, SpO₂) between low-power 1.8 V analog front-end and 3.3 V processing SoC.

IC Role / Device Role / Timing Role: Low-latency, low-leakage signal repeater with precise 3-state control for multiplexed channel selection.

Use Value: 3.5 ns tPD ensures minimal timing skew; 0.1 V VOL at 8 mA guarantees clean logic levels across battery voltage range.

Use Scenario: Configurable signal path switching in automated test equipment (ATE) where DUT I/O lines must be isolated during calibration sequences.

IC Role / Device Role / Timing Role: Precision-controlled 3-state gate synchronizing with test pattern generator clocks.

Use Value: Guaranteed 5.5 V over-voltage tolerance protects expensive instrumentation ports from accidental DUT fault conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-inverting 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G125DBVR	TTL-compatible input thresholds (VIH = 2.0 V @ VCC = 3.3 V); slightly higher ICC (max 10 µA vs. 40 µA for M74VHC1G125DTT1G).	Better suited for legacy 3.3 V LVTTL systems; lacks 5.5 V over-voltage tolerance on inputs.	Select when interfacing strictly with 3.3 V LVTTL sources and lower quiescent current is prioritized.
74AUP1G125GW,125	Ultra-low power (ICC < 0.5 µA typ); operates down to 0.8 V VCC; slower tPD (6.4 ns @ 3.3 V).	Optimized for always-on battery sensors; not rated for 5 V operation or 5.5 V over-voltage tolerance.	Choose for energy-constrained IoT endpoints where speed is secondary to standby current.

Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the M74VHC1G125DTT1G uniquely balances 5.5 V over-voltage tolerance, −55 °C to +125 °C operation, and 3.5 ns speed - making it the preferred choice for ruggedized mixed-voltage interconnects requiring field reliability.

Availability

M74VHC1G125DTT1G is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, portable medical devices, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for M74VHC1G125DTT1G 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 power management, analog, logic, and sensing solutions for automotive, industrial, cloud, and medical markets.

The M74VHC1G125DTT1G belongs to the VHC-series advanced CMOS logic family, engineered for high-speed, low-power, mixed-voltage interoperability in space-constrained embedded systems.

FAQ

What is the maximum input voltage rating for M74VHC1G125DTT1G?

The M74VHC1G125DTT1G supports DC input voltages up to 5.5 V on all pins (A, OE, Y), regardless of VCC level. This over-voltage tolerance allows safe interfacing between 5 V peripherals and 3.3 V or 2.5 V controllers without external protection components - a key design advantage confirmed in the Absolute Maximum Ratings table of the official onsemi datasheet.

Does M74VHC1G125DTT1G support partial power-down operation?

Yes, M74VHC1G125DTT1G includes IOFF circuitry that limits input/output leakage to ≤10 µA when VCC = 0 V. This feature prevents back-current flow during system sleep or hot-swap events, protecting both the buffer and upstream/downstream circuitry - explicitly verified in the DC Electrical Characteristics section of the datasheet under IOFF parameter.

What is the typical propagation delay of M74VHC125DTT1G at 3.3 V supply?

At VCC = 3.3 V and CL = 15 pF, the typical propagation delay (tPLH/tPHL) of M74VHC1G125DTT1G is 4.5 ns, with a maximum of 9.5 ns over −40 °C to +85 °C. These values are measured per Figure 3 test circuit and documented in the AC Electrical Characteristics table - confirming suitability for sub-10 ns timing-critical signal routing.

Which package does M74VHC1G125DTT1G use, and what are its dimensions?

M74VHC1G125DTT1G uses the SC-74A (SOT-25) package: 3.0 mm × 1.5 mm × 0.95 mm body size with 0.95 mm lead pitch. Pin 1 is marked by a dot or beveled edge; pinout follows A–GND–OE–Y–VCC sequence. Mechanical dimensions and marking diagrams are fully specified in Case 318BQ of the onsemi datasheet.

Is M74VHC1G125DTT1G qualified for automotive applications?

The base M74VHC1G125DTT1G is not automotive-qualified, but the −Q suffix variant (e.g., M74VHC1G125DTT1G-Q) is AEC-Q100 Grade 1 qualified (−40 °C to +125 °C) and PPAP-capable. This qualification covers stress testing for temperature cycling, humidity, and ESD - essential for body electronics and infotainment modules requiring automotive-grade reliability.

M74VHC1G125DTT1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74VHC

Package/Case:: SOT-23-5 Thin, TSOT-23-5

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 1

Input Type:: -

Output Type:: 3-State

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

Voltage - Supply:: 2V ~ 5.5V

Operating Temperature:: -55°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 5-TSOP

M74VHC1G125DTT1G FAQ

1.How can I place an order for M74VHC1G125DTT1G through Aetrix?

Please submit a Request for Quotation (RFQ) for M74VHC1G125DTT1G 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 M74VHC1G125DTT1G reliable?

The price and inventory of M74VHC1G125DTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74VHC1G125DTT1G is usually 5 days.

3.What payment methods are accepted for M74VHC1G125DTT1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74VHC1G125DTT1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M74VHC1G125DTT1G?

M74VHC1G125DTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M74VHC1G125DTT1G 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 M74VHC1G125DTT1G?

For technical support, including M74VHC1G125DTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74VHC1G125DTT1G requirements.

6.How does Aetrix verify that M74VHC1G125DTT1G is sourced from the original manufacturer or authorized distributors?

All M74VHC1G125DTT1G 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 M74VHC1G125DTT1G meets industry standards.

7.What is the process for return or replacement of M74VHC1G125DTT1G?

All M74VHC1G125DTT1G units undergo pre-shipment inspection (PSI). If there is an issue with M74VHC1G125DTT1G, 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 M74VHC1G125DTT1G part is unused and in its original packaging.

Return procedure for M74VHC1G125DTT1G:

1.Submit a request within 90 days.

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

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