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onsemi MC74VHC1G50DFT2G-Q
- Part No.:
- MC74VHC1G50DFT2G-Q
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MC74VHC1G50DFT2G-Q.pdf
- Description:
- SINGLE NON-INVERTING BUFFER
- Quantity:
- Payment:
- Shipping:
Inventory:138
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Product details
Overview
MC74VHC1G50DFT2G-Q from onsemi is a single CMOS buffer IC designed for level-shifting and signal conditioning in mixed-voltage systems. It operates from 2.0 V to 5.5 V, delivers 3.5 ns typical propagation delay at 5 V, features over-voltage tolerant inputs/outputs up to 5.5 V, supports IOFF partial power-down protection, and drives ±8 mA at 3.0 V. It is used in automotive body control modules for interfacing 5 V legacy sensors with 3.3 V microcontrollers.
For engineers reviewing the MC74VHC1G50DFT2G-Q datasheet, pinout, applications, or equivalent options, key selection criteria include its CMOS-input threshold compatibility, SC-88A package footprint, −55 °C to +125 °C automotive temperature range, and AEC-Q100 qualification status.
Technical Context
The MC74VHC1G50DFT2G-Q implements a non-inverting buffer with CMOS-level input thresholds (VIH = 1.5 V min at VCC = 2.0 V; VIL = 0.5 V max), enabling reliable operation across 2.0–5.5 V supply rails. Its input and output structures tolerate voltages up to 5.5 V independent of VCC, allowing safe interfacing between 5 V and 3 V domains without external clamping.
It incorporates IOFF circuitry that disables I/O leakage when VCC = 0 V, preventing back-powering of powered-down subsystems during hot insertion or battery backup scenarios. The device uses <100 FETs and is fabricated in onsemi's advanced CMOS process for low quiescent current (ICC ≤ 40 µA at VCC = 5.5 V) and robust ESD performance (HBM 2000 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - Enables direct use in 3.3 V and 5 V logic domains without level translators. |
| tPD (Typ) | 3.5 ns at VCC = 5 V, CL = 15 pF - Supports high-speed signal buffering in timing-critical interfaces. |
| Input Voltage Tolerance | −0.5 V to +5.5 V - Allows connection to 5 V signals even when VCC = 3.3 V, eliminating need for external protection diodes. |
| IOFF Leakage | ≤10 µA at VCC = 0 V - Prevents current backflow into unpowered sections during partial system shutdown. |
| Output Drive | ±8 mA at VCC = 3.0 V - Sufficient to drive multiple standard CMOS loads or short PCB traces without buffering. |
| Operating Temp | −55 °C to +125 °C - Qualified for under-hood automotive applications per AEC-Q100 Grade 1 requirements. |
| ESD Rating | HBM 2000 V, CDM 1000 V - Meets industrial and automotive board-level ESD robustness standards. |
Pinout & Package
MC74VHC1G50DFT2G-Q is packaged in SC-88A (Case 419A), a 5-pin, 2.1 mm × 1.25 mm surface-mount package with 0.65 mm pitch and exposed pad option. Pin 1 is marked with a dot or beveled edge per onsemi marking diagram VR.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - must be left floating or grounded; no electrical function. |
| 2 | A | CMOS-compatible input - accepts 2.0–5.5 V logic levels regardless of VCC value. |
| 3 | GND | Ground reference - serves as return path for input/output currents and substrate bias. |
| 4 | Y | Non-inverting buffered output - replicates input state with drive capability up to ±8 mA. |
| 5 | VCC | Positive supply - powers internal logic; voltage determines VIH/VIL thresholds and output swing. |
Key Features
| Feature | Design Value |
|---|---|
| Over-voltage tolerant I/O | Withstands −0.5 V to +5.5 V on A and Y pins irrespective of VCC, enabling 5 V ↔ 3 V domain bridging without external components. |
| IOFF partial power-down | Automatically disables I/O paths when VCC = 0 V, preventing back-current flow and protecting downstream circuits during power sequencing. |
| Low propagation delay | 3.5 ns typical at 5 V ensures minimal timing skew in clock distribution, reset propagation, or data enable paths. |
| Wide temperature range | Specified from −55 °C to +125 °C meets AEC-Q100 Grade 1 requirements for engine compartment and chassis electronics. |
| Pb-Free & RoHS compliant | Meets global environmental regulations with halogen-free/BFR-free construction and lead-free terminations (G suffix). |
Applications
| Automotive Body Control Unit | Industrial PLC Input Module |
|---|---|
Use Scenario: Interfacing 5 V analog sensor outputs (e.g., throttle position) to a 3.3 V MCU ADC input in a vehicle body control module. IC Role / Device Role / Timing Role: Signal-level translator and noise-filtering buffer isolating the MCU from higher-voltage sensor circuitry. Use Value: Eliminates need for discrete resistor-divider networks or dedicated level-shifters while maintaining signal integrity and AEC-Q100 compliance. | Use Scenario: Conditioning digital status signals from 24 V industrial field devices before feeding into a 3.3 V programmable logic controller (PLC) input stage. IC Role / Device Role / Timing Role: Voltage-domain translator and current-limited interface buffer protecting the PLC's low-voltage logic inputs. Use Value: Provides over-voltage tolerance and IOFF protection during field wiring hot-swap events, reducing system-level failure modes. |
| Medical Diagnostic Equipment | Automotive Infotainment System |
Use Scenario: Isolating and buffering serial control lines (e.g., UART TX/RX) between a 5 V power management IC and a 3.3 V application processor in portable diagnostic gear. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional buffer ensuring clean signal edges and preventing ground loop coupling. Use Value: Maintains signal fidelity at up to 10 Mbps while meeting IEC 60601-1 creepage/clearance and EMC immunity requirements via low-noise design. | Use Scenario: Driving LED backlight enable signals from a 3.3 V infotainment SoC to 5 V LED driver ICs in automotive display assemblies. IC Role / Device Role / Timing Role: Logic-level shifter and current-boosting buffer ensuring fast turn-on/turn-off transitions for PWM dimming control. Use Value: Delivers 8 mA sink/source at 3.3 V to overcome gate capacitance of external MOSFETs, reducing LED flicker and improving contrast ratio. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Has Schmitt-trigger input (hysteresis), not CMOS threshold; same SC-70-5 package but different pinout (A/Y swapped); VCC range 1.65–5.5 V. | Suitable for noisy environments requiring input noise immunity; not drop-in due to pinout mismatch and different logic behavior. | Select only if hysteresis is required and PCB layout allows re-routing; not a functional or mechanical replacement for MC74VHC1G50DFT2G-Q. |
| 74LVC1G50GW,125 | Same CMOS input thresholds and non-inverting function; offered in SC-88A (same pinout), but not AEC-Q100 qualified; max operating temp = +125 °C (non-automotive grade). | Applicable in commercial/industrial designs where automotive qualification is unnecessary; identical electrical behavior in normal operation. | Use where cost or availability favors Nexperia; verify lifecycle support and PPAP documentation is not required. |
Compared with SN74LVC1G17DBVR and 74LVC1G50GW,125, the MC74VHC1G50DFT2G-Q uniquely combines AEC-Q100 qualification, IOFF protection, and verified −55 °C to +125 °C operation in the SC-88A footprint-making it the only choice for production automotive ECUs requiring PPAP compliance and partial power-down safety.
Availability
MC74VHC1G50DFT2G-Q is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC input modules, medical diagnostic equipment, and automotive infotainment systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for MC74VHC1G50DFT2G-Q 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74VHC1G50DFT2G-Q belongs to onsemi's VHC logic family, engineered specifically for high-speed, low-power, mixed-voltage interfacing in harsh-environment automotive and industrial control systems.
FAQ
What is the input threshold type of the MC74VHC1G50DFT2G-Q?
The MC74VHC1G50DFT2G-Q features CMOS-level input thresholds: VIH = 1.5 V (min) and VIL = 0.5 V (max) at VCC = 2.0 V, scaling proportionally with supply voltage. This distinguishes it from the TTL-input variant MC74VHC1GT50 and ensures compatibility with standard CMOS logic families across its full 2.0–5.5 V operating range. The MC74VHC1G50DFT2G-Q does not implement Schmitt-trigger inputs.
Is the MC74VHC1G50DFT2G-Q pin-compatible with other SC-88A logic buffers?
The MC74VHC1G50DFT2G-Q uses the standard SC-88A pinout: Pin 1 = NC, Pin 2 = A, Pin 3 = GND, Pin 4 = Y, Pin 5 = VCC. It is mechanically compatible with other SC-88A-packaged single-gate logic devices, but electrical compatibility depends on function and thresholds - e.g., it is not pin-compatible with TTL-input variants like MC74VHC1GT50DFT2G due to differing VIH/VIL specs, though both share the same footprint.
Does the MC74VHC1G50DFT2G-Q support tri-state operation?
No, the MC74VHC1G50DFT2G-Q is a fixed-function non-inverting buffer with push-pull output and does not support tri-state (high-impedance) operation. Its output is always driven high or low based on the input state. Devices with tri-state capability in the same family include MC74VHC1G125 and MC74VHC1G126, which feature OE (output enable) control.
What does the "-Q" suffix signify in MC74VHC1G50DFT2G-Q?
The "-Q" suffix indicates that the MC74VHC1G50DFT2G-Q is manufactured under onsemi's automotive-grade quality program: it is AEC-Q100 qualified (Grade 1), PPAP capable, and subject to unique site and control change requirements including enhanced traceability, extended reliability testing, and controlled manufacturing lot disposition. This distinguishes it from commercial-grade versions like MC74VHC1G50DFT2G.
Can the MC74VHC1G50DFT2G-Q be used with VCC = 0 V while signals are present on A or Y?
Yes - the MC74VHC1G50DFT2G-Q includes IOFF circuitry that disables I/O paths when VCC = 0 V, limiting input/output leakage to ≤10 µA even when A or Y is biased to 5.5 V. This prevents back-powering of unpowered subsystems during hot insertion, battery backup, or partial power-down sequences, a critical requirement in automotive and industrial systems.
MC74VHC1G50DFT2G-Q Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
MC74VHC1G50DFT2G-Q FAQ
1.How can I place an order for MC74VHC1G50DFT2G-Q through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1G50DFT2G-Q 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 MC74VHC1G50DFT2G-Q reliable?
The price and inventory of MC74VHC1G50DFT2G-Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1G50DFT2G-Q is usually 5 days.
3.What payment methods are accepted for MC74VHC1G50DFT2G-Q?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1G50DFT2G-Q transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1G50DFT2G-Q?
MC74VHC1G50DFT2G-Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1G50DFT2G-Q 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 MC74VHC1G50DFT2G-Q?
For technical support, including MC74VHC1G50DFT2G-Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1G50DFT2G-Q requirements.
6.How does Aetrix verify that MC74VHC1G50DFT2G-Q is sourced from the original manufacturer or authorized distributors?
All MC74VHC1G50DFT2G-Q 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 MC74VHC1G50DFT2G-Q meets industry standards.
7.What is the process for return or replacement of MC74VHC1G50DFT2G-Q?
All MC74VHC1G50DFT2G-Q units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1G50DFT2G-Q, 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 MC74VHC1G50DFT2G-Q part is unused and in its original packaging.
Return procedure for MC74VHC1G50DFT2G-Q:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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