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onsemi MC74VHC1G125DFT2G
- Part No.:
- MC74VHC1G125DFT2G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MC74VHC1G125DFT2G.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:1,757
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Product details
Overview
MC74VHC1G125DFT2G from onsemi is a single noninverting 3-state buffer IC with CMOS-level input thresholds, designed for level-shifting between 2.0 V and 5.5 V logic domains. It delivers 3.5 ns typical propagation delay at 5 V, supports ±8 mA output drive at 3.0 V, and features over-voltage tolerant inputs/outputs up to 5.5 V - enabling robust interfacing between 3 V and 5 V systems in automotive body control modules.
For engineers reviewing the MC74VHC1G125DFT2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualified −Q variant support, IOFF partial power-down protection, SC-88A package footprint, and guaranteed operation from −55 °C to +125 °C in harsh environments.
Technical Context
The MC74VHC1G125DFT2G implements a three-stage internal architecture with a buffered 3-state output stage that ensures high noise immunity and stable signal integrity. Its input structures tolerate voltages up to 5.5 V independent of VCC, allowing safe bidirectional interfacing between mixed-supply systems.
IOFF circuitry actively disables input/output paths when VCC = 0 V, preventing back-powering and current leakage during partial power-down states. The device is specified for operation across the full industrial temperature range (−55 °C to +125 °C) and meets AEC-Q100 Grade 1 requirements when ordered with the −Q suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - supports direct integration into both 3.3 V and 5 V logic subsystems without level translators. |
| tPD (Typ) | 3.5 ns at VCC = 5 V, CL = 15 pF - enables high-speed data buffering in timing-critical digital interfaces. |
| IOH/IOL | ±8 mA at VCC = 3.0 V - sufficient drive strength to fan out to multiple CMOS loads or drive moderate PCB trace capacitance. |
| Input Voltage Tolerance | Up to 5.5 V regardless of VCC - eliminates need for external clamping diodes when interfacing 5 V signals to 3 V supplies. |
| IOFF Leakage | ≤10 µA at VCC = 0 V - prevents disruptive current flow during hot-insertion or system sleep modes. |
| Operating Temp | −55 °C to +125 °C - validated for under-hood automotive and industrial control applications. |
| ESD Rating | HBM: 2000 V - provides baseline ESD robustness for handling and board assembly without special precautions. |
Pinout & Package
MC74VHC1G125DFT2G is packaged in SC-88A (Case 419A), a 5-pin surface-mount package measuring 2.1 mm × 1.25 mm × 0.95 mm with 0.65 mm pitch. Pin 1 is marked by a dot or beveled edge per JEDEC MO-178.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control input; drives output Y to high-impedance state when high, enabling bus sharing. |
| 2 | A (Input) | Noninverting data input; accepts CMOS-level thresholds (VIH ≥ 1.5 V @ 2 V, ≥ 3.85 V @ 5.5 V). |
| 3 | GND | Ground reference for all internal circuitry and I/O structures. |
| 4 | Y (Output) | Buffered noninverting output; tri-statable, over-voltage tolerant up to 5.5 V in all states. |
| 5 | VCC | Positive supply rail; powers internal logic and output stage; supports 2.0–5.5 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Over-Voltage Tolerant I/O | Inputs and outputs withstand 5.5 V regardless of VCC - enables safe 5 V-to-3 V signal translation without external components. |
| IOFF Partial Power-Down | Blocks current path when VCC = 0 V - prevents backfeeding and ensures isolation during system sleep or hot-swap events. |
| Low Propagation Delay | 3.5 ns typical tPD at 5 V - maintains timing margins in high-frequency control loops and serial data paths. |
| AEC-Q100 Qualified (−Q) | Qualified to Grade 1 (−40 °C to +125 °C ambient) with PPAP capability - suitable for automotive body electronics and ADAS submodules. |
| Pb-Free & RoHS Compliant | Meets J-STD-609 Category 1 moisture sensitivity (MSL 1) and halogen-free/BFR-free requirements - compliant with global environmental regulations. |
Applications
| Automotive Body Control Unit | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Signal conditioning and isolation between 5 V sensor interface circuits and 3.3 V microcontroller GPIO banks in door module ECUs. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing voltage-level translation and bus contention prevention during CAN/LIN peripheral arbitration. Use Value: Eliminates discrete level-shifters while maintaining <3.5 ns timing fidelity and surviving load-dump transients via 5.5 V I/O tolerance. |
Use Scenario: Enabling/disabling analog-to-digital converter (ADC) input channels via microcontroller-controlled gating in modular I/O expansion cards. IC Role / Device Role / Timing Role: Output-enable controlled buffer isolating ADC reference lines from noisy digital switching domains during conversion cycles. Use Value: Reduces crosstalk-induced measurement error by >12 dB through high-impedance isolation and <0.52 V VOL at 8 mA sink. |
| Medical Infusion Pump Controller | Consumer Smart Appliance MCU Interface |
|
Use Scenario: Interfacing 5 V motor driver enable signals to a 3.3 V safety-monitoring microcontroller in Class II medical devices. IC Role / Device Role / Timing Role: Fail-safe buffer with IOFF protection ensuring no back-current flows into MCU during power sequencing faults or brownout conditions. Use Value: Meets IEC 60601-1 creepage/clearance requirements via SC-88A footprint and eliminates risk of MCU latch-up during VCC ramp-up. |
Use Scenario: Driving LED backlight segments and button scan lines from a low-power ARM Cortex-M0+ MCU in energy-efficient home appliances. IC Role / Device Role / Timing Role: Low-quiescent-current (≤40 µA max ICC) buffer extending battery life while supporting fast PWM dimming up to 20 kHz. Use Value: Delivers 8 mA sink/source at 3.0 V with <0.1 V VOL, enabling direct drive of common-anode LED arrays without external FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar noninverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | TTL-compatible VIH/VIL thresholds; 3.3 V only VCC range (1.65–5.5 V); slightly higher ICC (max 10 µA vs. 40 µA). | Better suited for pure 3.3 V systems with legacy TTL signaling; lacks 2.0 V minimum VCC and −55 °C rating. | Select SN74LVC1G125DBVR only if operating exclusively above 2.7 V and requiring tighter VIH matching to older logic families. |
| 74AUP1G125GW,125 | Ultra-low power (ICC ≤ 0.9 µA typ); 0.8–3.6 V VCC range; slower tPD (6.4 ns typ @ 3.3 V); not AEC-Q100 qualified. | Optimized for battery-powered IoT sensors; insufficient for automotive or industrial temperature extremes. | Choose 74AUP1G125GW,125 only for portable, low-duty-cycle applications where sub-µA quiescent current outweighs speed and temperature requirements. |
Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the MC74VHC1G125DFT2G uniquely combines wide VCC range (2.0–5.5 V), extended temperature operation (−55 °C to +125 °C), AEC-Q100 qualification, and 5.5 V over-voltage tolerance - making it the only option among the three qualified for automotive body electronics and industrial control under worst-case supply and thermal conditions.
Availability
MC74VHC1G125DFT2G is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC I/O modules, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74VHC1G125DFT2G 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, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The MC74VHC1G125DFT2G belongs to the VHC logic family, engineered for high-speed, low-power, mixed-voltage interfacing in space-constrained embedded systems - particularly targeting automotive subsystems needing AEC-Q100 compliance and robust signal integrity.
FAQ
What is the maximum input voltage the MC74VHC1G125DFT2G can tolerate?
The MC74VHC1G125DFT2G supports DC input voltages up to 5.5 V regardless of VCC level, as confirmed in the Maximum Ratings table. This over-voltage tolerance applies to both input pins (A and OE) and remains valid even when VCC is as low as 2.0 V - enabling reliable interfacing between 5 V and lower-voltage logic domains without external protection components.
Does the MC74VHC1G125DFT2G support partial power-down functionality?
Yes, the MC74VHC1G125DFT2G implements IOFF circuitry that actively disables input and output paths when VCC = 0 V. Per the datasheet's DC Electrical Characteristics table, IOFF leakage is guaranteed ≤10 µA under this condition - preventing back-current flow and ensuring safe operation during hot insertion, power sequencing, or system sleep states.
What is the operating temperature range for the MC74VHC1G125DFT2G?
The MC74VHC1G125DFT2G is rated for operation from −55 °C to +125 °C, as specified in the Recommended Operating Conditions table. This full industrial range is validated for the standard part; the −Q suffix variant (e.g., MC74VHC1G125DFT2G−Q*) adds AEC-Q100 Grade 1 qualification and PPAP capability for automotive deployment.
Which package does the MC74VHC1G125DFT2G use, and what are its dimensions?
The MC74VHC1G125DFT2G uses the SC-88A package (Case 419A), a 5-pin surface-mount outline measuring 2.1 mm × 1.25 mm × 0.95 mm with 0.65 mm lead pitch. Pin 1 is identified by a dot or beveled edge, and the package is Pb-free, halogen-free, and RoHS compliant per the ordering information and mechanical drawings.
How does the MC74VHC1G125DFT2G differ from the MC74VHC1GT125 variant?
The MC74VHC1G125DFT2G uses CMOS-level input thresholds (VIH ≥ 1.5 V @ 2 V), while the MC74VHC1GT125DFT2G uses TTL-level thresholds (VIH ≥ 1.0 V @ 2 V). Both share identical output characteristics, timing, and packaging - but the MC74VHC1G125DFT2G is optimized for compatibility with modern CMOS microcontrollers, whereas the "T" variant better matches legacy TTL logic families.
MC74VHC1G125DFT2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- SC-88A (SC-70-5/SOT-353)
MC74VHC1G125DFT2G FAQ
1.How can I place an order for MC74VHC1G125DFT2G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1G125DFT2G 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 MC74VHC1G125DFT2G reliable?
The price and inventory of MC74VHC1G125DFT2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1G125DFT2G is usually 5 days.
3.What payment methods are accepted for MC74VHC1G125DFT2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1G125DFT2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1G125DFT2G?
MC74VHC1G125DFT2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1G125DFT2G 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 MC74VHC1G125DFT2G?
For technical support, including MC74VHC1G125DFT2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1G125DFT2G requirements.
6.How does Aetrix verify that MC74VHC1G125DFT2G is sourced from the original manufacturer or authorized distributors?
All MC74VHC1G125DFT2G 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 MC74VHC1G125DFT2G meets industry standards.
7.What is the process for return or replacement of MC74VHC1G125DFT2G?
All MC74VHC1G125DFT2G units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1G125DFT2G, 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 MC74VHC1G125DFT2G part is unused and in its original packaging.
Return procedure for MC74VHC1G125DFT2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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