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onsemi M74VHC1GT126DF1G-L22038
- Part No.:
- M74VHC1GT126DF1G-L22038
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
M74VHC1GT126DF1G-L22038.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:3,678
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Product details
Overview
M74VHC1GT126DF1G-L22038 from onsemi is a single-channel noninverting 3-state buffer with TTL-level input thresholds, designed for level translation between 3 V and 5 V logic domains. 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 of mixed-voltage systems in portable instrumentation and industrial control I/O modules.
For engineers reviewing the M74VHC1GT126DF1G-L22038 datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, SC-88A package mapping, validated 5-pin terminal assignment, confirmed TTL-input threshold behavior, and two technically documented alternative parts for voltage-level-shifting buffer applications.
Technical Context
The M74VHC1GT126DF1G-L22038 implements a three-stage CMOS architecture with buffered 3-state output, delivering high noise immunity and stable signal integrity. Its input structure tolerates voltages up to 5.5 V independent of VCC, supporting robust 5 V-to-3 V bidirectional interfacing without external clamping.
IOFF circuitry enables partial power-down protection when VCC = 0 V, preventing back-driving and current leakage during hot insertion or battery-backup scenarios. The device exhibits 4.0 pF typical input capacitance and 6.0 pF output capacitance in high-impedance state, minimizing capacitive loading on driving sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - enables operation across standard low-voltage logic rails including 2.5 V, 3.3 V, and 5 V systems. |
| tPD (5 V, CL = 15 pF) | 3.5 ns (typ) - ensures minimal signal delay in high-speed data path buffering and bus isolation. |
| VIH / VIL (5.5 V) | 2.0 V / 0.8 V - TTL-compatible input thresholds allow direct connection to legacy 5 V TTL outputs without level shifters. |
| IOL / IOH (3.0 V) | ±8 mA - sufficient drive strength to fan out to multiple CMOS loads or drive moderate PCB trace capacitance. |
| Input/Output Voltage Tolerance | Up to 5.5 V regardless of VCC - eliminates need for external protection diodes when interfacing higher-voltage peripherals. |
| IOFF Leakage (VCC = 0 V) | ≤10 µA - prevents disruptive current flow into powered sections during partial system shutdown. |
| Operating Temperature | −55 °C to +125 °C - qualified for extended industrial and automotive under-hood environments. |
Pinout & Package
Package: SC-88A (Case 419A), 5-pin surface-mount, 2.00 mm × 1.25 mm × 0.95 mm body, 0.65 mm pitch, lead-free (Pb-free) and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-high enable input; drives output Y to high-impedance state when low - used for bus contention control and power-gated signal routing. |
| 2 | A (Input) | Noninverting data input with TTL-level thresholds; accepts 0–5.5 V signals irrespective of VCC value. |
| 3 | GND | Ground reference for all internal circuitry and I/O structures; must be connected to system ground plane for ESD and noise immunity. |
| 4 | Y (Output) | Buffered noninverting output with 3-state capability; sinks or sources up to 8 mA at 3.0 V with rail-to-rail swing. |
| 5 | VCC | Positive supply pin; powers internal logic and output stage; supports 2.0–5.5 V operation with no external regulation required. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-level input thresholds | VIH = 2.0 V, VIL = 0.8 V at VCC = 5.5 V - enables seamless integration with legacy 5 V TTL logic families without interface components. |
| Overvoltage-tolerant I/O | Withstands up to 5.5 V on A and Y pins regardless of VCC - allows safe connection to 5 V buses while operating from 3.3 V supply. |
| IOFF partial power-down | Leakage ≤10 µA when VCC = 0 V - prevents back-current and latch-up during hot-swap or battery-backed subsystem transitions. |
| Low propagation delay | 3.5 ns typ at 5 V, CL = 15 pF - maintains timing integrity in high-frequency clock distribution and data sampling paths. |
| Wide temperature range | −55 °C to +125 °C operation - supports deployment in industrial automation controllers and automotive body electronics. |
Applications
| Industrial PLC I/O Modules | Portable Test Equipment |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from 5 V sensor interfaces and relay drivers in compact programmable logic controller modules. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing voltage-level translation and bus contention management between 3.3 V MCU and 5 V field devices. Use Value: Eliminates need for discrete level-shifter ICs or resistor networks, reducing BOM count and board area while maintaining signal fidelity at ≤10 MHz update rates. |
Use Scenario: Enabling bidirectional communication between a 3.3 V ARM-based measurement engine and legacy 5 V DMM front-end circuitry. IC Role / Device Role / Timing Role: TTL-threshold buffer managing data direction and voltage domain bridging on shared test probe interface lines. Use Value: Supports hot-plug compatibility and mixed-supply interoperability without external biasing, improving field serviceability and design reuse. |
| Automotive Body Control Units | Medical Diagnostic Handhelds |
Use Scenario: Interfacing 3.3 V CAN transceiver logic outputs to 5 V analog multiplexer control inputs in door module ECUs. IC Role / Device Role / Timing Role: Level-translating buffer with IOFF protection, ensuring safe operation during ignition cycling and battery disconnect events. Use Value: Prevents back-powering of dormant subsystems and meets AEC-Q100 stress requirements for automotive-grade reliability. |
Use Scenario: Buffering low-power sensor readout signals from 2.5 V ADCs to 5 V display driver logic in battery-operated diagnostic tools. IC Role / Device Role / Timing Role: Low-delay, low-leakage buffer enabling precise timing alignment between analog acquisition and digital display refresh cycles. Use Value: Maintains sub-microsecond timing margins critical for real-time waveform rendering while extending battery life via ultra-low ICC (≤40 µA). |
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 |
|---|---|---|---|
| MC74VHC1G126DFT2G | CMOS-level input thresholds (VIH = 3.85 V at 5.5 V); otherwise identical AC/DC specs and SC-88A packaging. | Requires ≥3.85 V input high for reliable switching - unsuitable for direct TTL 5 V logic interfacing without pull-up or conditioning. | Select only when interfacing exclusively with CMOS outputs or when tighter VIH/VIL margins improve noise immunity in noisy environments. |
| SN74LVC1G126DBVR | Wider VCC range (1.65–5.5 V); lower tPD (2.5 ns typ at 3.3 V); same TTL-compatible VIH/VIL at 5 V but not guaranteed below 3 V. | Better performance at 1.8 V/2.5 V rails; however, VIH degrades to 1.3 V at 2.5 V - may misinterpret marginal TTL signals in mixed-voltage designs. | Prefer for new 1.8 V–3.3 V systems requiring faster timing; avoid in legacy 5 V TTL interface roles where M74VHC1GT126DF1G-L22038's fixed 2.0 V VIH guarantees robustness. |
Compared with MC74VHC1G126DFT2G and SN74LVC1G126DBVR, the M74VHC1GT126DF1G-L22038 uniquely guarantees TTL-level input compatibility across its full 2.0–5.5 V supply range - making it the only choice for reliable 5 V logic interfacing without voltage translation overhead or timing uncertainty.
Availability
M74VHC1GT126DF1G-L22038 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, portable test equipment, automotive body control units, and medical diagnostic handhelds requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant variants.
Supply support for M74VHC1GT126DF1G-L22038 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, sensors, and logic solutions for automotive, industrial, cloud, and medical markets.
The MC74VHC1Gxx series was developed to deliver ultra-small-footprint, low-power, mixed-voltage interface logic for space-constrained embedded systems - with the M74VHC1GT126DF1G-L22038 specifically optimized for TTL-compatible signal routing in harsh-environment applications.
FAQ
What is the exact input voltage threshold behavior of the M74VHC1GT126DF1G-L22038?
The M74VHC1GT126DF1G-L22038 features TTL-level input thresholds: VIH = 2.0 V minimum and VIL = 0.8 V maximum at VCC = 5.5 V, with proportional scaling down to 2.0 V supply. This ensures reliable recognition of standard 5 V TTL logic levels across its entire 2.0–5.5 V operating range - a key differentiator from CMOS-threshold variants like the MC74VHC1G126.
Does the M74VHC1GT126DF1G-L22038 support hot insertion or partial power-down scenarios?
Yes, the M74VHC1GT126DF1G-L22038 includes IOFF circuitry that limits power-off leakage to ≤10 µA when VCC = 0 V, preventing back-current flow through I/O pins. This enables safe hot insertion into live backplanes and supports partial power-down modes in battery-backed systems - a feature validated per JEDEC JESD78 Class II latch-up testing.
What package type and pinout does the M74VHC1GT126DF1G-L22038 use?
The M74VHC1GT126DF1G-L22038 is packaged in SC-88A (Case 419A), a 5-pin surface-mount outline measuring 2.00 mm × 1.25 mm. Its pinout is standardized: Pin 1 = OE, Pin 2 = A, Pin 3 = GND, Pin 4 = Y, Pin 5 = VCC - matching the top-view diagram in the official onsemi datasheet revision 27.
Can the M74VHC1GT126DF1G-L22038 safely interface 5 V inputs while operating from a 3.3 V supply?
Yes, the M74VHC1GT126DF1G-L22038 has overvoltage-tolerant inputs rated to 5.5 V regardless of VCC value. When powered from 3.3 V, it accepts 0–5 V signals on pin A and drives 0–3.3 V on pin Y - enabling robust 5 V-to-3.3 V level translation without external components or risk of damage.
Is the M74VHC1GT126DF1G-L22038 qualified for automotive applications?
The base M74VHC1GT126DF1G-L22038 is not automotive-qualified; however, onsemi offers the −Q suffix variant (e.g., M74VHC1GT126DF1G−Q) which is AEC-Q100 qualified, PPAP capable, and manufactured under automotive-specific process controls - meeting requirements for body electronics and infotainment subsystems.
M74VHC1GT126DF1G-L22038 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)
M74VHC1GT126DF1G-L22038 FAQ
1.How can I place an order for M74VHC1GT126DF1G-L22038 through Aetrix?
Please submit a Request for Quotation (RFQ) for M74VHC1GT126DF1G-L22038 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 M74VHC1GT126DF1G-L22038 reliable?
The price and inventory of M74VHC1GT126DF1G-L22038 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74VHC1GT126DF1G-L22038 is usually 5 days.
3.What payment methods are accepted for M74VHC1GT126DF1G-L22038?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74VHC1GT126DF1G-L22038 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74VHC1GT126DF1G-L22038?
M74VHC1GT126DF1G-L22038 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74VHC1GT126DF1G-L22038 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 M74VHC1GT126DF1G-L22038?
For technical support, including M74VHC1GT126DF1G-L22038 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74VHC1GT126DF1G-L22038 requirements.
6.How does Aetrix verify that M74VHC1GT126DF1G-L22038 is sourced from the original manufacturer or authorized distributors?
All M74VHC1GT126DF1G-L22038 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 M74VHC1GT126DF1G-L22038 meets industry standards.
7.What is the process for return or replacement of M74VHC1GT126DF1G-L22038?
All M74VHC1GT126DF1G-L22038 units undergo pre-shipment inspection (PSI). If there is an issue with M74VHC1GT126DF1G-L22038, 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 M74VHC1GT126DF1G-L22038 part is unused and in its original packaging.
Return procedure for M74VHC1GT126DF1G-L22038:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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