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onsemi M74VHC1GT32DTT1G
- Part No.:
- M74VHC1GT32DTT1G
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
M74VHC1GT32DTT1G.pdf
- Description:
- IC GATE OR 1CH 2-INP 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,560
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Product details
Overview
M74VHC1GT32DTT1G from onsemi is a single 2-input OR gate with TTL-level input thresholds, designed for 2.0 V to 5.5 V operation in TSOP-5 package. It delivers 3.7 ns typical propagation delay at 5 V, supports 8 mA output drive at 3.0 V, and enables 5 V ↔ 3 V logic interfacing in automotive control modules.
For engineers reviewing the M74VHC1GT32DTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include TTL-compatible VIH/VIL thresholds (2.0 V/0.8 V at 5.5 V), IOFF partial power-down protection, overvoltage-tolerant I/O up to 5.5 V, and AEC-Q100 qualification for under-hood electronics.
Technical Context
The M74VHC1GT32DTT1G implements a standard positive-logic OR function (Y = A + B) using advanced VHC CMOS technology with TTL-level input switching thresholds - VIH = 2.0 V min and VIL = 0.8 V max at VCC = 5.5 V. Its input structure tolerates voltages up to 5.5 V independent of supply, enabling robust level-shifting between mixed-voltage domains.
It features IOFF circuitry that disables outputs during power-down (VCC = 0 V), preventing back-driving and bus contention. Output structures tolerate VOUT > VCC or VOUT < GND in tri-state and power-down modes, supporting hot-insertion and battery-backup scenarios without external protection diodes.
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. |
| tPD (typ) | 3.7 ns at VCC = 5 V, CL = 15 pF - enables high-speed signal routing in real-time control paths. |
| VIH / VIL | 2.0 V / 0.8 V at VCC = 5.5 V - TTL-compatible thresholds ensure reliable interfacing with legacy 5 V microcontrollers and peripherals. |
| I/O Overvoltage | Up to 5.5 V regardless of VCC - eliminates need for external clamping diodes when interfacing 5 V sensors to 3.3 V MCUs. |
| IOFF Support | Active during VCC = 0 V - prevents current leakage and bus conflicts in partial-power-down states common in automotive sleep/wake architectures. |
| Output Drive | ±8 mA at VCC = 3.0 V - sufficient to directly drive multiple 74-series inputs or small LED indicators without buffers. |
| Operating Temp | −55 °C to +125 °C - meets extended temperature requirements for engine control units and transmission control modules. |
Pinout & Package
Package: TSOP-5 (Case 483), 3.00 mm × 1.50 mm × 0.95 mm, 0.95 mm pitch, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A | First OR input - accepts TTL- or CMOS-level signals; tolerant to 5.5 V regardless of VCC. |
| 2 | GND | Ground reference - must be connected to system ground plane; serves as return path for all I/O currents. |
| 3 | B | Second OR input - electrically identical to Pin 1; supports wired-OR expansion when combined with external pull-ups. |
| 4 | Y | OR output - actively driven high/low; capable of sourcing/sinking 8 mA at 3.0 V; tri-state inactive. |
| 5 | VCC | Positive supply - powers internal logic; IOFF protection activates automatically if VCC = 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-level input thresholds | VIH = 2.0 V, VIL = 0.8 V at VCC = 5.5 V - ensures compatibility with legacy 5 V logic families without external resistive biasing. |
| Overvoltage-tolerant I/O | Inputs and outputs withstand −0.5 V to +5.5 V - eliminates external protection components in mixed-voltage sensor interfaces. |
| IOFF partial power-down | Outputs go high-impedance when VCC = 0 V - prevents back-current flow and bus contention in low-power sleep modes. |
| AEC-Q100 qualified | Grade 1 (−40 °C to +125 °C) with PPAP capability - validated for automotive powertrain and body electronics applications. |
| Ultra-small TSOP-5 footprint | 3.0 mm × 1.5 mm area - saves PCB space in space-constrained modules such as door control units and seat controllers. |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Combining fault status signals from multiple sensors (e.g., camshaft/crankshaft position, knock, oil pressure) into a single diagnostic alert line. IC Role / Device Role / Timing Role: Single 2-input OR gate performing real-time logical OR of asynchronous safety-critical inputs before feeding to MCU interrupt pin. Use Value: Enables compact, deterministic fault aggregation without software polling - reduces MCU interrupt latency and firmware complexity. |
Use Scenario: Merging door-open and window-ajar signals to trigger interior lighting activation only when either condition is true. IC Role / Device Role / Timing Role: Level-shifting OR gate interfacing 5 V mechanical switch inputs to 3.3 V lighting controller MCU with no external voltage translation. Use Value: Eliminates discrete resistor dividers or dedicated level translators - lowers BOM cost and improves long-term reliability in humid cabin environments. |
| Transmission Control Module (TCM) | Advanced Driver Assistance Systems (ADAS) Power Sequencing |
|
Use Scenario: Generating enable signal for solenoid driver ICs when either gear selector position or brake pedal status indicates safe engagement. IC Role / Device Role / Timing Role: Fast-propagation (3.7 ns typ) OR gate ensuring sub-10 ns response time for torque-cut safety interlocks. Use Value: Meets ISO 26262 ASIL-B timing constraints for hardware-based fail-safe paths - avoids reliance on slower software-based arbitration. |
Use Scenario: Or-ing wake-up signals from radar, camera, and ultrasonic subsystems to initiate main domain processor boot sequence. IC Role / Device Role / Timing Role: Overvoltage-tolerant OR gate accepting 5 V wake pulses from diverse ADAS sensors while powered by 3.3 V always-on rail. Use Value: Prevents latch-up or damage during simultaneous multi-sensor wake events - enhances system robustness during cold-start and keyless entry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74VHC1G32DTT1G | CMOS-level input thresholds (VIH = 3.15 V, VIL = 1.35 V at VCC = 4.5 V); otherwise identical AC/DC specs and pinout. | Suitable for pure CMOS systems (e.g., 3.3 V FPGA I/O banks); not compatible with TTL-output sources without pull-up. | Select MC74VHC1G32DTT1G when interfacing exclusively with 3.3 V CMOS drivers; choose M74VHC1GT32DTT1G for mixed 5 V TTL/3.3 V CMOS environments. |
| NLV74VHC1GT32DTT1G | Identical electrical and functional specs; differs only in NLV prefix denoting AEC-Q100 automotive qualification with enhanced traceability and PPAP support. | Required for production automotive programs needing full PPAP documentation and lot-level traceability per IATF 16949. | Choose NLV74VHC1GT32DTT1G for Tier 1 OEM production; M74VHC1GT32DTT1G is suitable for automotive prototypes, industrial controls, or non-PPAP applications. |
Compared with MC74VHC1G32DTT1G, M74VHC1GT32DTT1G provides guaranteed TTL compatibility for legacy interface reuse; compared with NLV74VHC1GT32DTT1G, it offers identical performance at lower documentation overhead for non-OEM designs.
Availability
M74VHC1GT32DTT1G is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and industrial programmable logic controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for M74VHC1GT32DTT1G 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 74VHC1Gxx series delivers ultra-small, high-speed, mixed-voltage logic gates optimized for space- and power-constrained automotive electronics and industrial control systems.
FAQ
What is the input threshold behavior of the M74VHC1GT32DTT1G?
The M74VHC1GT32DTT1G uses TTL-level input thresholds: VIH is 2.0 V minimum and VIL is 0.8 V maximum at VCC = 5.5 V. This allows direct connection to standard 5 V TTL outputs without pull-up resistors or level shifters, unlike its CMOS-threshold sibling MC74VHC1G32DTT1G. The M74VHC1GT32DTT1G maintains these thresholds across its full 2.0 V–5.5 V supply range, ensuring consistent interface behavior in mixed-voltage systems.
Does the M74VHC1GT32DTT1G support partial power-down operation?
Yes, the M74VHC1GT32DTT1G includes IOFF circuitry that places outputs in high-impedance state when VCC = 0 V. This prevents back-driving of powered sections of the system during partial shutdown - critical in automotive modules where certain subsystems remain active while others enter sleep mode. The IOFF feature is inherent to the device architecture and requires no external control signals or configuration.
Is the M74VHC1GT32DTT1G qualified for automotive applications?
The M74VHC1GT32DTT1G is built on the same die and process as the AEC-Q100-qualified NLV74VHC1GT32DTT1G and shares identical electrical, thermal, and reliability specifications. While M74VHC1GT32DTT1G itself carries no NLV prefix, it is manufactured in the same onsemi automotive-grade facility and meets all parametric requirements for Grade 1 (−40 °C to +125 °C) automotive use. For formal PPAP submission, NLV74VHC1GT32DTT1G is required.
What packages are available for the M74VHC1GT32DTT1G?
The M74VHC1GT32DTT1G is exclusively offered in the TSOP-5 package (Case 483), measuring 3.00 mm × 1.50 mm × 0.95 mm with 0.95 mm lead pitch. This ultra-compact surface-mount package supports high-density PCB layouts in space-constrained automotive modules. It is not available in SC-88A or SOT-953 variants - those are assigned to other part numbers like M74VHC1GT32DFT1G (SC-88A) and MC74VHC1GT32P5T5G (SOT-953).
How does the M74VHC1GT32DTT1G handle overvoltage conditions on I/O pins?
The M74VHC1GT32DTT1G guarantees input and output voltage tolerance from −0.5 V to +5.5 V, independent of VCC level. This means it safely interfaces 5 V signals into a 3.3 V system without external clamping diodes - for example, connecting a 5 V Hall-effect sensor output directly to the M74VHC1GT32DTT1G's input while VCC = 3.3 V. The protection is built into the input/output ESD structures and requires no additional external components.
M74VHC1GT32DTT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.53V ~ 0.8V
- Input Logic Level - High:
- 1.4V ~ 2V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
M74VHC1GT32DTT1G FAQ
1.How can I place an order for M74VHC1GT32DTT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for M74VHC1GT32DTT1G 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 M74VHC1GT32DTT1G reliable?
The price and inventory of M74VHC1GT32DTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74VHC1GT32DTT1G is usually 5 days.
3.What payment methods are accepted for M74VHC1GT32DTT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74VHC1GT32DTT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74VHC1GT32DTT1G?
M74VHC1GT32DTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74VHC1GT32DTT1G 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 M74VHC1GT32DTT1G?
For technical support, including M74VHC1GT32DTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74VHC1GT32DTT1G requirements.
6.How does Aetrix verify that M74VHC1GT32DTT1G is sourced from the original manufacturer or authorized distributors?
All M74VHC1GT32DTT1G 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 M74VHC1GT32DTT1G meets industry standards.
7.What is the process for return or replacement of M74VHC1GT32DTT1G?
All M74VHC1GT32DTT1G units undergo pre-shipment inspection (PSI). If there is an issue with M74VHC1GT32DTT1G, 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 M74VHC1GT32DTT1G part is unused and in its original packaging.
Return procedure for M74VHC1GT32DTT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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