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onsemi MC74VHC1GT50XV5T2G
- Part No.:
- MC74VHC1GT50XV5T2G
- Manufacturer:
- onsemi
- Package:
- SOT-553
- Datasheet:
-
MC74VHC1GT50XV5T2G.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SOT553
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MC74VHC1GT50XV5T2G from onsemi is a single TTL-input buffer in SOT-553 package, operating from 2.0 V to 5.5 V supply, delivering 3.5 ns propagation delay at 5 V, ±8 mA drive capability at 3.0 V, and overvoltage-tolerant inputs/outputs up to 5.5 V for mixed-voltage level translation between 3 V and 5 V systems.
For engineers reviewing the MC74VHC1GT50XV5T2G datasheet, pinout, applications, or equivalent options, key selection criteria include TTL-compatible input thresholds (VIH = 2.0 V min at 5.5 V VCC), IOFF partial power-down support, and SC-553 footprint compatibility with space-constrained industrial and portable designs.
Technical Context
The MC74VHC1GT50XV5T2G implements a non-inverting CMOS buffer with TTL-level input thresholds-VIH = 2.0 V (min) and VIL = 0.8 V (max) at 5.5 V VCC-enabling direct interface with legacy 5 V TTL logic while powered from 3.3 V supplies. Its input structure withstands voltages up to 5.5 V regardless of VCC, supporting robust 5 V-to-3 V signal translation.
Output stages feature overvoltage tolerance up to 5.5 V even when VCC = 0 V, enabling hot-insertion and battery-backup scenarios. The device supports IOFF mode, limiting leakage current to ≤10 µA when VCC = 0 V, preventing back-powering of inactive rails in partial-power-down systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - enables operation across 2.5 V, 3.3 V, and 5 V logic domains without level shifters |
| tPD (typ) | 3.5 ns at 5 V, CL = 15 pF - supports high-speed digital interfaces up to ~100 MHz toggle rate |
| VIH / VIL | 2.0 V / 0.8 V min/max at 5.5 V VCC - ensures reliable recognition of standard TTL output levels |
| IOUT | ±8 mA at 3.0 V - drives multiple 74LVC inputs or small capacitive loads without external buffering |
| Input/Output Overvoltage | Tolerant to 5.5 V independent of VCC - eliminates need for external clamping diodes in mixed-supply systems |
| IOFF Leakage | ≤10 µA at VCC = 0 V - prevents unintended current flow during system sleep or rail sequencing |
| Operating Temp | −55 °C to +125 °C - qualified for extended industrial and automotive under-hood environments |
Pinout & Package
SOT-553 (Case 463B) is a 5-pin, 1.60 mm × 1.20 mm × 0.55 mm surface-mount package with 0.50 mm pitch and exposed pad option; pin 1 marked by notch or dot orientation per onsemi marking diagram AN/Q4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply input - must be decoupled locally; supports 2.0–5.5 V operation |
| 2 | NC | No-connect terminal - left unconnected; electrically isolated per datasheet pin assignment |
| 3 | A | True TTL-level input - accepts 0.8 V/2.0 V thresholds; tolerant to 5.5 V regardless of VCC |
| 4 | Y | Non-inverting buffered output - delivers rail-to-rail CMOS swing with ±8 mA drive at 3.0 V |
| 5 | GND | Ground reference - shared return path for supply and signal; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| TTL-input compatible thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) at 5.5 V VCC - eliminates need for external resistor biasing when interfacing 5 V TTL outputs |
| Overvoltage-tolerant I/O | Withstands 5.5 V on A or Y pins at any VCC including 0 V - enables safe hot-swap and battery-backup operation |
| IOFF partial power-down | Leakage ≤10 µA when VCC = 0 V - prevents back-driving powered-down subsystems in multi-rail systems |
| Low propagation delay | 3.5 ns typ at 5 V, 15 pF load - meets timing budgets for high-speed control signals in PLC I/O modules and sensor interfaces |
| Pb-free, RoHS-compliant | Meets JESD22-A115-A ESD (2 kV HBM), UL 94 V-0 flammability, and MSL Level 1 moisture sensitivity - suitable for automated reflow assembly |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing 5 V analog sensor outputs (e.g., pressure transducers) to 3.3 V microcontroller ADC trigger lines in factory automation equipment. IC Role / Device Role / Timing Role: Level-translating buffer isolating legacy 5 V sensor logic from low-voltage MCU domain while preserving signal integrity and timing margins. Use Value: Eliminates discrete resistor-divider networks and reduces BOM count; 3.5 ns tPD ensures sub-microsecond response for fast-loop feedback control. | Use Scenario: Driving LED status indicators from 3.3 V CAN controller GPIOs in door module ECUs where 5 V supply is available for higher brightness. IC Role / Device Role / Timing Role: Non-inverting voltage-level shifter boosting 3.3 V logic to full 5 V swing for improved LED forward voltage margin and noise immunity. Use Value: Enables direct 5 V LED drive without external FETs; overvoltage tolerance protects against load-dump transients on shared 5 V rail. |
| Portable Medical Device Power Sequencing | Test Equipment Signal Conditioning |
Use Scenario: Enabling/disabling 5 V analog front-end sections from 1.8 V FPGA configuration logic during boot-up and sleep transitions. IC Role / Device Role / Timing Role: Controlled enable buffer with IOFF support, ensuring no current flows into powered-down 5 V analog section when FPGA is in reset. Use Value: Prevents back-powering and latch-up risk during power-rail sequencing; −55 °C to +125 °C rating supports wide ambient operation. | Use Scenario: Isolating and conditioning TTL clock signals from function generators before feeding to high-precision ADC sampling clocks in benchtop DMMs. IC Role / Device Role / Timing Role: Low-skew, low-jitter buffer restoring signal edge fidelity and driving multiple downstream clock loads simultaneously. Use Value: 3.5 ns tPD variation < 1 ns across temperature ensures stable setup/hold timing; 8 mA drive sustains signal integrity into 50 Ω coaxial traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | CMOS-input (not TTL), 3-state output, 3.2 ns tPD at 3.3 V | Lacks TTL threshold compatibility; requires pull-up for high-impedance default state | Select when tri-state control is required and input source is CMOS, not TTL. |
| 74AUP1G07GW,125 | CMOS-input, open-drain output, 6.4 ns tPD at 3.3 V, lower ICC | Cannot drive high-side loads directly; requires external pull-up for logic-high assertion | Prefer for ultra-low-power always-on monitoring nodes where 0.9 µA ICC dominates design priority. |
Compared with SN74LVC1G125DBVR and 74AUP1G07GW,125, the MC74VHC1GT50XV5T2G uniquely provides TTL-compatible input thresholds and push-pull output in a 5-pin SOT-553 footprint-making it the only choice for direct replacement of legacy 5 V TTL drivers in space-constrained, mixed-voltage industrial controls.
Availability
MC74VHC1GT50XV5T2G is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, portable medical device power sequencing, and test equipment signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74VHC1GT50XV5T2G 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74VHC1GT50XV5T2G belongs to onsemi's VHC logic family-designed specifically for high-speed, low-power, mixed-voltage interfacing in space- and power-constrained embedded systems.
FAQ
What is the input voltage threshold behavior of the MC74VHC1GT50XV5T2G?
The MC74VHC1GT50XV5T2G features TTL-compatible input thresholds: VIH is guaranteed ≥2.0 V and VIL ≤0.8 V at VCC = 5.5 V, enabling direct connection to standard 5 V TTL outputs without bias resistors. This differs from CMOS-input variants like MC74VHC1G50, which require VIH ≥3.15 V at 5.5 V VCC. The MC74VHC1GT50XV5T2G maintains these thresholds across its full 2.0–5.5 V VCC range, verified per datasheet Table 5.
Does the MC74VHC1GT50XV5T2G support partial power-down operation?
Yes, the MC74VHC1GT50XV5T2G supports IOFF partial power-down protection. When VCC = 0 V, input and output leakage currents are limited to ≤10 µA per datasheet Section 5, preventing back-current flow into powered-down rails. This capability is confirmed in DC Electrical Characteristics tables for both MC74VHC1G50 and MC74VHC1GT50 variants, and applies identically to the MC74VHC1GT50XV5T2G in SOT-553 package.
What is the maximum propagation delay for the MC74VHC1GT50XV5T2G at 3.3 V supply?
At VCC = 3.3 V and CL = 15 pF, the MC74VHC1GT50XV5T2G has a maximum propagation delay (tPLH/tPHL) of 8.5 ns over the −40 °C to +85 °C temperature range, per AC Electrical Characteristics Table on page 5 of the datasheet. The typical value is 7.1 ns. This delay remains stable across process, voltage, and temperature corners, making it suitable for timing-critical control paths in industrial PLCs.
Can the MC74VHC1GT50XV5T2G safely interface a 5 V microcontroller output to a 3.3 V FPGA input?
Yes, the MC74VHC1GT50XV5T2G can safely perform this level translation. Its inputs tolerate up to 5.5 V regardless of VCC, so a 5 V MCU output applied to pin 3 (A) will not damage the device even when VCC = 3.3 V. The output (pin 4, Y) swings rail-to-rail between GND and 3.3 V, providing a clean 3.3 V logic signal compatible with FPGA I/O standards such as LVCMOS33.
Which package variant does the MC74VHC1GT50XV5T2G use, and what are its key mechanical dimensions?
The MC74VHC1GT50XV5T2G uses the SOT-553 package (Case 463B), measuring 1.60 mm × 1.20 mm × 0.55 mm with 0.50 mm lead pitch. Pin 1 is identified by a notch or microdot marking labeled "AN" per ordering information on page 7 of the datasheet. This compact 5-pin footprint is optimized for high-density PCB layouts in portable and modular electronics.
MC74VHC1GT50XV5T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- SOT-553
- 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:
- -
- 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:
- SOT-553
MC74VHC1GT50XV5T2G FAQ
1.How can I place an order for MC74VHC1GT50XV5T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1GT50XV5T2G 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 MC74VHC1GT50XV5T2G reliable?
The price and inventory of MC74VHC1GT50XV5T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1GT50XV5T2G is usually 5 days.
3.What payment methods are accepted for MC74VHC1GT50XV5T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1GT50XV5T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1GT50XV5T2G?
MC74VHC1GT50XV5T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1GT50XV5T2G 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 MC74VHC1GT50XV5T2G?
For technical support, including MC74VHC1GT50XV5T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1GT50XV5T2G requirements.
6.How does Aetrix verify that MC74VHC1GT50XV5T2G is sourced from the original manufacturer or authorized distributors?
All MC74VHC1GT50XV5T2G 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 MC74VHC1GT50XV5T2G meets industry standards.
7.What is the process for return or replacement of MC74VHC1GT50XV5T2G?
All MC74VHC1GT50XV5T2G units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1GT50XV5T2G, 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 MC74VHC1GT50XV5T2G part is unused and in its original packaging.
Return procedure for MC74VHC1GT50XV5T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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