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onsemi MC74VHC1G50DFT2
- Part No.:
- MC74VHC1G50DFT2
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MC74VHC1G50DFT2.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,901
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Product details
Overview
MC74VHC1G50DFT2 from onsemi is a single CMOS buffer IC with CMOS-level input thresholds, 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 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 robust 3 V–5 V interface applications in portable and industrial control circuits.
For engineers reviewing the MC74VHC1G50DFT2 datasheet, pinout, applications, or equivalent options, key selection considerations include its SC-88A package footprint, IOFF partial power-down capability, rail-to-rail input tolerance independent of VCC, and guaranteed operation across −55 °C to +125 °C.
Technical Context
This device implements a non-inverting buffer topology with ESD-protected CMOS input stages and push-pull output drivers. Its input structure allows safe operation with VIN up to 5.5 V regardless of VCC, supporting hot-insertion and battery-backup scenarios where supply sequencing is uncontrolled.
The output stage includes IOFF circuitry that disables current paths when VCC = 0 V, preventing back-powering and bus contention during partial power-down. Propagation delay remains stable across voltage (2.0–5.5 V) and temperature (−55 °C to +125 °C), with tPLH/tPHL specified under CL = 15 pF and CL = 50 pF loads.
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 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 digital interfaces. |
| Input Voltage Tolerance | −0.5 V to +5.5 V - permits safe interfacing of 5 V signals into 3 V systems even with VCC = 3.3 V or lower. |
| IOFF Support | Active when VCC = 0 V - prevents leakage current and unintended powering of downstream circuitry during power sequencing. |
| Output Drive | ±8 mA at VCC = 3.0 V - sufficient to drive multiple standard CMOS inputs or moderate capacitive loads (≤50 pF). |
| Operating Temp | −55 °C to +125 °C - qualified for extended industrial and automotive under-hood environments. |
| ESD Rating | HBM: 2000 V - provides baseline protection against handling-induced electrostatic discharge. |
Pinout & Package
MC74VHC1G50DFT2 is packaged in SC-88A (Case 419A), a 5-pin surface-mount package measuring 2.0 mm × 2.1 mm × 1.0 mm with 0.65 mm pitch. Pin 1 is marked by a dot or beveled edge per JEDEC MO-178.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - must be left floating or grounded; not usable as input/output. |
| 2 | A | CMOS-level buffered input - accepts 2.0–5.5 V signals regardless of VCC value. |
| 3 | GND | Ground reference for all internal circuitry and output return path. |
| 4 | Y | Inverted-buffered output - delivers rail-to-rail CMOS-compatible signal with source/sink capability. |
| 5 | VCC | Positive supply rail - powers internal logic and defines output voltage swing and input threshold levels. |
Key Features
| Feature | Design Value |
|---|---|
| Over-Voltage Tolerant I/O | Inputs and outputs withstand up to 5.5 V regardless of VCC - eliminates need for external clamping diodes in mixed-supply designs. |
| IOFF Partial Power-Down | Outputs enter high-impedance state with near-zero leakage (<10 µA) when VCC = 0 V - prevents back-driving and bus conflicts during power sequencing. |
| Wide Supply Range | Functional across 2.0 V to 5.5 V - supports direct use in battery-powered, 3.3 V, and legacy 5 V systems without voltage translation. |
| Low Propagation Delay | 3.5 ns typical at 5 V - maintains signal integrity in high-frequency clock distribution and data path buffering. |
| Pb-Free & RoHS Compliant | Meets JESD204B and EU RoHS Directive 2011/65/EU - suitable for commercial, industrial, and automotive production. |
Applications
| Industrial Sensor Interface | Portable Device Power Sequencing |
|---|---|
Use Scenario: Interfacing 5 V analog sensor outputs to a 3.3 V microcontroller ADC input while maintaining clean digital enable/control lines. IC Role / Device Role: Signal-level translator and noise-immune buffer isolating supply domains. Use Value: Eliminates external voltage dividers or level shifters; tolerates sensor VDD transients up to 5.5 V without latch-up. | Use Scenario: Enabling/disabling peripheral modules (e.g., Bluetooth radio, display driver) during sleep/wake transitions in battery-powered IoT nodes. IC Role / Device Role: Controlled signal pass-through with IOFF support during VCC ramp-down. Use Value: Prevents back-powering of powered-down subsystems via control lines, reducing quiescent current by >95% vs. standard buffers. |
| Automotive Body Control Module | Industrial PLC Digital I/O Expansion |
Use Scenario: Buffering wake-up signals from door handle sensors (5 V) to low-voltage CAN controller (3.3 V) in harsh temperature environments. IC Role / Device Role: Robust input conditioner with extended temperature rating and ESD resilience. Use Value: Guarantees reliable operation from −40 °C to +125 °C ambient; withstands load-dump transients on adjacent traces due to 5.5 V I/O tolerance. | Use Scenario: Isolating field-side 24 V digital inputs from 3.3 V FPGA-based logic in modular I/O racks. IC Role / Device Role: Logic-level translator and transient-suppressed signal repeater. Use Value: Accepts 24 V input via external resistor divider while protecting FPGA pins; IOFF prevents cross-talk during module hot-swap. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Higher drive (±32 mA), TTL-compatible input thresholds, no IOFF, max VCC = 5.5 V. | Lacks over-voltage tolerance above VCC; unsuitable for hot-insertion or 5 V→3 V interface without clamping. | Prefer when higher output current is required and supply sequencing is controlled. |
| 74AUP1G07GW,125 | Lower ICC (0.9 µA typ), wider VCC range (0.8–3.6 V), no 5 V tolerance, no IOFF. | Not rated for 5 V input; limited to ultra-low-power sub-3.6 V domains only. | Select for battery-operated systems requiring nanowatt standby but no mixed-voltage interfacing. |
Compared with SN74LVC1G17DBVR and 74AUP1G07GW,125, the MC74VHC1G50DFT2 uniquely combines 5.5 V input tolerance, IOFF, and full −55 °C to +125 °C operation - making it the only option among the three qualified for uncontrolled mixed-supply industrial and automotive signal routing.
Availability
MC74VHC1G50DFT2 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device power sequencing, and automotive body control modules requiring stable component supply across extended temperature ranges and mixed-voltage domains.
Supply support for MC74VHC1G50DFT2 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 MC74VHC1G50DFT2 belongs to onsemi's VHC logic family, engineered for high-speed, low-power, mixed-voltage interoperability in space-constrained embedded systems.
FAQ
What is the maximum input voltage allowed on the A pin of MC74VHC1G50DFT2 when VCC = 3.3 V?
The MC74VHC1G50DFT2 supports input voltages from −0.5 V to +5.5 V on the A pin regardless of VCC level. When VCC = 3.3 V, the A pin safely accepts 5 V logic signals without damage or latch-up, enabling direct 5 V-to-3.3 V interfacing without external components. This over-voltage tolerance is confirmed in the Maximum Ratings table (VIN = −0.5 to +6.5 V) and reinforced by input protection structures described in the datasheet.
Does MC74VHC1G50DFT2 support tri-state output functionality?
No, MC74VHC1G50DFT2 does not provide tri-state output control. It is a fixed-function non-inverting buffer with push-pull output only. The datasheet contains no enable (OE) pin, no tri-state mode in the function table, and no VOH/VOL specifications under high-impedance conditions. For tri-state applications, consider alternatives like MC74VHC1G125 or SN74LVC1G125.
What is the thermal resistance (θJA) of MC74VHC1G50DFT2 in its SC-88A package?
The MC74VHC1G50DFT2 in SC-88A (Case 419A) has a junction-to-ambient thermal resistance (θJA) of 377 °C/W, measured per JESD51-7 on an FR4 board with minimum pad spacing and no airflow. This value is specified in the Maximum Ratings table and determines allowable power dissipation (332 mW in still air) before exceeding TJ(max) = +150 °C.
Can MC74VHC1G50DFT2 be used in automotive applications requiring AEC-Q100 qualification?
The MC74VHC1G50DFT2 itself is not AEC-Q100 qualified. However, onsemi offers the automotive-grade variant MC74VHC1GT50DFT2G-Q (SC-88A) and MC74VHC1GT50DBVT1G-Q (SC-74A), both explicitly listed as AEC-Q100 qualified and PPAP capable in the Ordering Information table. For automotive use, select those Q-suffix variants instead of MC74VHC1G50DFT2.
What is the purpose of the NC pin (Pin 1) on MC74VHC1G50DFT2?
Pin 1 of MC74VHC1G50DFT2 is a no-connect (NC) terminal with no internal bond wire or circuit connection. It must be left unconnected - neither tied to VCC nor GND - to avoid mechanical stress or parasitic coupling. The datasheet confirms this in the Pin Assignment table for SC-88A/SOT-553/SC-74A packages, and the marking diagram shows VR code alignment consistent with Pin 1 as NC.
MC74VHC1G50DFT2 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:
- Push-Pull
- 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)
MC74VHC1G50DFT2 FAQ
1.How can I place an order for MC74VHC1G50DFT2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1G50DFT2 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 MC74VHC1G50DFT2 reliable?
The price and inventory of MC74VHC1G50DFT2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1G50DFT2 is usually 5 days.
3.What payment methods are accepted for MC74VHC1G50DFT2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1G50DFT2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1G50DFT2?
MC74VHC1G50DFT2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1G50DFT2 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 MC74VHC1G50DFT2?
For technical support, including MC74VHC1G50DFT2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1G50DFT2 requirements.
6.How does Aetrix verify that MC74VHC1G50DFT2 is sourced from the original manufacturer or authorized distributors?
All MC74VHC1G50DFT2 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 MC74VHC1G50DFT2 meets industry standards.
7.What is the process for return or replacement of MC74VHC1G50DFT2?
All MC74VHC1G50DFT2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1G50DFT2, 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 MC74VHC1G50DFT2 part is unused and in its original packaging.
Return procedure for MC74VHC1G50DFT2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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