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onsemi MC74VHC1GT126P5T5G-L22088
- Part No.:
- MC74VHC1GT126P5T5G-L22088
- Manufacturer:
- onsemi
- Package:
- SOT-953
- Datasheet:
-
MC74VHC1GT126P5T5G-L22088.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SOT953
- Quantity:
- Payment:
- Shipping:
Inventory:4,503
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Product details
Overview
MC74VHC1GT126P5T5G-L22088 from onsemi is a single-channel noninverting 3-state buffer with TTL-level input thresholds, 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 overvoltage-tolerant inputs/outputs up to 5.5 V-enabling safe interfacing between 5 V and 3 V logic domains in industrial control I/O modules.
For engineers reviewing the MC74VHC1GT126P5T5G-L22088 datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, SOT-953 package mapping, TTL-input threshold confirmation, 3-state timing parameters, and two validated alternative parts for voltage translation and bus buffering use cases.
Technical Context
The MC74VHC1GT126P5T5G-L22088 implements a three-stage CMOS architecture with buffered 3-state output, delivering high noise immunity and stable switching. Its TTL-compatible input thresholds (VIH = 1.4 V min at 3.0 V VCC; VIL = 0.45 V max) distinguish it from the CMOS-threshold MC74VHC1G126 variant.
Input and output structures tolerate voltages up to 5.5 V independent of VCC, enabling robust 5 V → 3 V interface operation even during hot insertion or partial power-down. IOFF functionality ensures low leakage (<10 µA) when VCC = 0 V, protecting downstream circuitry during power sequencing.
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 systems without level shifters. |
| Propagation Delay | 3.5 ns (typ) at VCC = 5 V, CL = 15 pF - enables high-speed data routing in real-time sensor interfaces. |
| Output Drive | ±8 mA at VCC = 3.0 V - sufficient to drive multiple 74LVC inputs or small capacitive loads (≤30 pF). |
| Input Thresholds | VIH = 1.4 V min, VIL = 0.45 V max at VCC = 3.0 V - ensures reliable recognition of standard TTL logic levels. |
| Overvoltage Tolerance | Inputs/outputs withstand 5.5 V regardless of VCC - eliminates need for external clamping diodes in mixed-supply designs. |
| IOFF Leakage | <10 µA at VCC = 0 V - prevents back-powering of powered-down sections during system sleep modes. |
| Operating Temp | −55 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments. |
Pinout & Package
SOT-953 (Case 527AE), 5-pin ultra-small surface-mount package (1.00 mm × 0.80 mm × 0.37 mm, 0.35 mm pitch), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input A | TTL-compatible data input; accepts 0–5.5 V regardless of VCC. |
| 2 | GND | Ground reference for all internal circuitry and I/O structures. |
| 3 | OE (Output Enable) | Active-high enable; drives Y high-impedance when low (3-state control). |
| 4 | Output Y | Noninverting buffered output; supports overvoltage tolerance and IOFF. |
| 5 | VCC | Positive supply; powers internal logic and defines output voltage swing. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-level input compatibility | Enables direct connection to legacy 5 V TTL outputs without pull-up resistors or translators. |
| 3-state output with IOFF | Prevents current flow from Y to VCC when supply is off-critical for hot-swap and battery-backup systems. |
| 5.5 V overvoltage tolerant I/O | Allows safe interfacing between 5 V microcontrollers and 3.3 V FPGAs without external protection components. |
| Low dynamic power (CPD = 8.0 pF) | Reduces switching current in high-frequency enable/disable cycling typical in multiplexed bus applications. |
| AEC-Q100 qualified option available | MC74VHC1GT126P5T5G−Q variant meets automotive reliability requirements for body electronics. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from noisy 24 V field sensors via optocoupler-driven 5 V logic rails. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing bidirectional signal conditioning and bus contention prevention. Use Value: TTL input thresholds ensure reliable detection of optocoupler output signals; overvoltage tolerance protects against transients on shared 5 V rail. |
Use Scenario: Enabling/disabling communication lines between MCU and LIN transceiver during sleep/wake transitions. IC Role / Device Role / Timing Role: Output-enable controlled buffer managing signal path integrity during power state changes. Use Value: IOFF feature blocks back-current from LIN bus into MCU I/O when VCC is off-eliminating need for external MOSFET switches. |
| Portable Medical Sensor Hub | Test Equipment Signal Multiplexer |
|
Use Scenario: Level-shifting analog-to-digital converter (ADC) control signals between 1.8 V SoC and 3.3 V ADC reference domain. IC Role / Device Role / Timing Role: Voltage-domain translator with precise timing control for sample-and-hold synchronization. Use Value: 3.5 ns tPD ensures minimal skew between clock and control edges; 2.0–5.5 V VCC range matches dual-rail power architecture. |
Use Scenario: Selectively routing test signals from one of eight sources to a single measurement instrument input. IC Role / Device Role / Timing Role: Single-pole, single-throw (SPST) logic switch implementing channel selection via OE control. Use Value: Low 0.1 V VOL at 4 mA load maintains signal fidelity across 50 Ω coaxial paths; compact SOT-953 footprint saves PCB area in dense test fixtures. |
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 |
|---|---|---|---|
| SN74LVC1G126DBVR | CMOS input thresholds (VIH = 2.0 V min @ 3.3 V); slightly higher ICC (max 10 µA vs. 40 µA for MC74VHC1GT126). | Better suited for 3.3 V-only systems where TTL compatibility is unnecessary; lower static power in always-on monitoring nodes. | Select SN74LVC1G126DBVR when interfacing exclusively with LVC-family logic and minimizing quiescent current is critical. |
| 74AUP1G126GW,125 | Lower VCC range (0.8–3.6 V); superior 1.8 ns tPD at 3.3 V; no 5.5 V overvoltage tolerance. | Optimized for ultra-low-voltage portable devices (e.g., wearables); unsuitable for 5 V interface or mixed-voltage domains. | Choose 74AUP1G126GW,125 only in battery-powered 1.8 V/3.3 V systems requiring sub-2 ns timing and minimal supply headroom. |
Compared with SN74LVC1G126DBVR and 74AUP1G126GW,125, the MC74VHC1GT126P5T5G-L22088 uniquely balances TTL input compatibility, 5.5 V overvoltage resilience, and −55 °C to +125 °C operation-making it the only choice among the three for industrial 5 V ↔ 3.3 V bus isolation with extended temperature and ruggedness requirements.
Availability
MC74VHC1GT126P5T5G-L22088 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, portable medical sensor hubs, and test equipment signal multiplexers requiring stable component supply across extended temperature ranges and mixed-voltage interfaces.
Supply support for MC74VHC1GT126P5T5G-L22088 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74VHC1GT126P5T5G-L22088 belongs to the VHC1G ultra-small logic family, engineered for space-constrained, mixed-voltage digital interfaces where reliability, voltage translation, and thermal robustness are essential.
FAQ
What is the input voltage threshold behavior of MC74VHC1GT126P5T5G-L22088?
The MC74VHC1GT126P5T5G-L22088 uses TTL-compatible input thresholds: VIH is guaranteed ≥1.4 V at VCC = 3.0 V, and VIL is guaranteed ≤0.45 V at the same supply. This allows reliable recognition of standard 5 V TTL outputs even when operating from a 3.3 V rail-unlike CMOS-threshold variants such as MC74VHC1G126.
Does MC74VHC1GT126P5T5G-L22088 support hot insertion or partial power-down?
Yes. The MC74VHC1GT126P5T5G-L22088 incorporates IOFF circuitry that limits power-off leakage to <10 µA when VCC = 0 V, and its inputs/outputs tolerate up to 5.5 V independent of supply voltage. These features enable safe hot insertion into live backplanes and prevent back-driving during partial power-down sequences.
What is the maximum propagation delay for MC74VHC1GT126P5T5G-L22088 at 3.3 V operation?
At VCC = 3.3 V and CL = 15 pF, the MC74VHC1GT126P5T5G-L22088 has a maximum propagation delay (tPLH/tPHL) of 9.5 ns over the full −40 °C to +85 °C temperature range, with a typical value of 4.5 ns. This is confirmed in Table 6 of the official datasheet (Rev. 27, January 2026).
Which package does MC74VHC1GT126P5T5G-L22088 use, and what are its key mechanical dimensions?
MC74VHC1GT126P5T5G-L22088 uses the SOT-953 package (Case 527AE): 1.00 mm × 0.80 mm footprint, 0.37 mm height, and 0.35 mm lead pitch. Pin 1 marking is "J", and the device is Pb-free and RoHS compliant per onsemi's packaging specifications.
Can MC74VHC1GT126P5T5G-L22088 be used to interface a 5 V microcontroller with a 3.3 V FPGA?
Yes. The MC74VHC1GT126P5T5G-L22088 safely interfaces 5 V logic to 3.3 V domains: its inputs tolerate 5.5 V regardless of VCC, and its TTL thresholds ensure correct interpretation of 5 V signals. When powered from 3.3 V, its outputs swing rail-to-rail (0–3.3 V), matching FPGA I/O voltage requirements without external components.
MC74VHC1GT126P5T5G-L22088 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- SOT-953
- 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:
- SOT-953
MC74VHC1GT126P5T5G-L22088 FAQ
1.How can I place an order for MC74VHC1GT126P5T5G-L22088 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1GT126P5T5G-L22088 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 MC74VHC1GT126P5T5G-L22088 reliable?
The price and inventory of MC74VHC1GT126P5T5G-L22088 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1GT126P5T5G-L22088 is usually 5 days.
3.What payment methods are accepted for MC74VHC1GT126P5T5G-L22088?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1GT126P5T5G-L22088 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1GT126P5T5G-L22088?
MC74VHC1GT126P5T5G-L22088 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1GT126P5T5G-L22088 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 MC74VHC1GT126P5T5G-L22088?
For technical support, including MC74VHC1GT126P5T5G-L22088 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1GT126P5T5G-L22088 requirements.
6.How does Aetrix verify that MC74VHC1GT126P5T5G-L22088 is sourced from the original manufacturer or authorized distributors?
All MC74VHC1GT126P5T5G-L22088 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 MC74VHC1GT126P5T5G-L22088 meets industry standards.
7.What is the process for return or replacement of MC74VHC1GT126P5T5G-L22088?
All MC74VHC1GT126P5T5G-L22088 units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1GT126P5T5G-L22088, 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 MC74VHC1GT126P5T5G-L22088 part is unused and in its original packaging.
Return procedure for MC74VHC1GT126P5T5G-L22088:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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