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onsemi MC74LVX32DT
- Part No.:
- MC74LVX32DT
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74LVX32DT.pdf
- Description:
- IC GATE OR
- Quantity:
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Product details
Overview
MC74LVX32DT from onsemi is a quad 2-input OR gate IC designed for level-translating logic interfacing between 3.0 V and 5.0 V systems. It features 5 V-tolerant inputs (up to 7.0 V), 4.4 ns typical propagation delay at 3.3 V, ±25 mA output drive, and operates from 2.0 V to 3.6 V supply. It is used in mixed-voltage digital control subsystems such as industrial I/O modules and embedded microcontroller peripheral interfaces.
For engineers reviewing the MC74LVX32DT datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage tolerance, propagation delay consistency across outputs, quiescent current at 25°C, noise immunity (VOLP ≤ 0.5 V), and TSSOP-14 package compatibility with high-density PCB layouts.
Technical Context
The MC74LVX32DT implements four independent CMOS OR gates in a single monolithic die, each with balanced tPLH/tPHL propagation delays and guaranteed output skew ≤1.5 ns under matched load conditions. Its input structure incorporates protection diodes enabling safe operation with 5.0 V signals while powered from a 3.3 V rail.
It supports mixed-signal system integration via 5 V-tolerant inputs that remain functional even when VCC = 2.0 V, and its low-noise design (VOLP ≤ 0.5 V) ensures signal integrity in noise-sensitive environments like sensor interface boards and programmable logic controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 3.6 V - Enables operation in modern low-voltage embedded systems without level shifters. |
| tPD (Typ) | 4.4 ns at VCC = 3.3 V, CL = 15 pF - Supports >100 MHz toggle rates in synchronous logic paths. |
| Input Voltage Tolerance | −0.5 V to +7.0 V - Allows direct connection to legacy 5 V logic without external clamping. |
| IOUT (Max) | ±25 mA per output - Drives standard TTL loads or multiple 74LVC inputs without buffering. |
| VOL (Max) | 0.36 V at IOL = 4 mA, VCC = 3.0 V - Ensures robust LOW-level margin against noise in noisy industrial environments. |
| ICC (Max) | 2.0 µA at TA = 25°C - Minimizes standby power in battery-backed or energy-constrained applications. |
| Cin (Typ) | 4 pF - Reduces capacitive loading on driving gates, preserving edge rate in fanout-heavy designs. |
Pinout & Package
TSSOP-14 package (Case 948G), 4.9 mm × 4.4 mm footprint, 0.65 mm pitch, lead-free compliant, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 10, 12, 13 | Data Input (A0–A3, B0–B3) | CMOS-compatible inputs accepting 0–5.5 V logic levels; internally clamped to VCC and GND. |
| 3, 6, 11, 8 | Output (O0–O3) | Push-pull CMOS outputs capable of sourcing/sinking ±25 mA; VOL ≤ 0.44 V at full load. |
| 7 | GND | Ground reference for all internal circuitry and output stage return path. |
| 14 | VCC | Primary power supply pin (2.0–3.6 V); decoupling capacitor required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables seamless interface between 3.3 V microcontrollers and 5 V sensors or legacy peripherals without external level translators. |
| Balanced propagation delays | Guarantees <1.5 ns skew between any two outputs, critical for synchronized multi-bit logic decisions in real-time control. |
| Power-down input protection | Prevents back-driving and latch-up when VCC = 0 V but inputs remain active - essential for hot-swap or partial-power-down systems. |
| Low dynamic noise (VOLP ≤ 0.5 V) | Mitigates ground bounce and crosstalk in dense routing, improving signal integrity on shared PCB planes. |
| Pb-free TSSOP-14 packaging | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles for lead-free assembly. |
Applications
| Industrial PLC I/O Expansion | Microcontroller GPIO Logic Aggregation |
|---|---|
Use Scenario: Adding discrete OR logic to combine multiple fault signals (e.g., overtemperature, overcurrent, communication timeout) into a single interrupt line for an ARM Cortex-M4-based controller. IC Role / Device Role / Timing Role: Quad OR gate performing wired-OR signal consolidation with sub-5 ns delay and no added jitter. Use Value: Eliminates need for discrete diode-OR networks or additional MCU pins, reducing BOM count and layout area by 60% versus discrete solutions. | Use Scenario: Interfacing multiple 5 V sensors (e.g., analog front-end supervisors, legacy encoders) to a 3.3 V FPGA I/O bank requiring clean logic-level translation. IC Role / Device Role / Timing Role: Level-shifting combinatorial logic element providing deterministic timing and rail-to-rail input tolerance. Use Value: Avoids timing uncertainty and voltage-margin violations inherent in resistor-divider or MOSFET-based level shifters. |
| Automotive Body Control Module | Medical Diagnostic Equipment Interface |
Use Scenario: Generating enable signals for multiple CAN transceivers based on ignition status and diagnostic mode flags in a 12 V vehicle platform with 3.3 V domain controllers. IC Role / Device Role / Timing Role: Reliable voltage-domain bridging logic with ESD robustness (>2 kV HBM) and −40°C to +85°C operation. Use Value: Meets AEC-Q100 stress test requirements for non-safety-critical logic functions without derating. | Use Scenario: Combining safety interlock signals (door open, cover removed, emergency stop) before enabling high-voltage subsystems in ultrasound imaging hardware. IC Role / Device Role / Timing Role: Fail-safe combinatorial gate with latch-up immunity (>300 mA) and low-noise outputs preventing false triggering. Use Value: Supports Class II medical device EMC compliance by minimizing radiated emissions from switching noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC32APWR | Wider VCC range (1.65–3.6 V); lower ICC (1 µA typ); no 5 V input tolerance - requires external clamping for 5 V inputs. | Suitable only in fully 3.3 V systems; not drop-in for mixed-voltage interfaces. | Select when board uses only 3.3 V logic and ultra-low static power is prioritized over input flexibility. |
| 74AHC32PW,118 | Higher speed (tPD = 3.7 ns typ at 5 V); 5 V tolerant inputs; but VCC min = 2.0 V - same input tolerance, slightly faster, but higher ICC (4 µA max). | Compatible in 5 V systems; less suitable for battery-powered 3.3 V-only designs due to higher quiescent draw. | Choose when operating at 5 V or when sub-4 ns delay is mandatory and 5 V supply is available. |
Compared with SN74LVC32APWR and 74AHC32PW,118, the MC74LVX32DT uniquely balances 5 V input tolerance, 4.4 ns speed, and sub-2 µA ICC in a 3.3 V system - making it optimal for cost-sensitive, mixed-voltage industrial control where reliability and pin compatibility outweigh marginal speed gains.
Availability
MC74LVX32DT is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller GPIO logic aggregation, and automotive body control module designs requiring stable component supply across long production lifecycles.
Supply support for MC74LVX32DT 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 computing, and medical applications.
The LVX logic family, including MC74LVX32DT, was engineered for low-voltage mixed-signal interoperability - specifically targeting 3.3 V systems interfacing with legacy 5 V infrastructure in industrial automation and embedded control.
FAQ
What is the maximum input voltage rating for MC74LVX32DT?
The MC74LVX32DT supports DC input voltages from −0.5 V to +7.0 V, independent of VCC. This 5 V-tolerant capability allows direct connection to 5.0 V logic signals even when powered from a 2.0–3.6 V supply, eliminating external level-shifting components in mixed-voltage designs. The specification is validated per absolute maximum ratings in the official onsemi datasheet Rev. 2.
Does MC74LVX32DT support hot insertion when VCC is unpowered?
Yes, MC74LVX32DT includes power-down input protection, allowing inputs to be driven to valid logic levels (0–5.5 V) even when VCC = 0 V. This prevents back-current flow and latch-up during hot-swap events in modular systems. The feature is explicitly documented in the "Features" section and confirmed by input diode current limits (IIK = −20 mA) in the Absolute Maximum Ratings table.
What is the typical propagation delay of MC74LVX32DT at 3.3 V supply?
The typical propagation delay (tPD) of MC74LVX32DT is 4.4 ns at VCC = 3.3 V ±0.3 V, CL = 15 pF, and TA = 25°C. This value is measured from input transition (50% point) to output transition (50% point) and applies uniformly across all four OR gates. The parameter is specified in the AC Electrical Characteristics table on page 4 of the onsemi datasheet.
Is MC74LVX32DT pin-compatible with standard 74-series OR gates?
Yes, MC74LVX32DT is pin- and function-compatible with industry-standard 74-series quad 2-input OR gates (e.g., 74HC32, 74LS32) in TSSOP-14 packaging. Pin assignments match the 14-lead JEDEC outline: inputs and outputs align identically, and VCC/GND positions are identical. This enables drop-in replacement in existing layouts without redesign, as stated in the "Features" section of the datasheet.
What package type does MC74LVX32DT use, and what are its key mechanical dimensions?
MC74LVX32DT uses the TSSOP-14 package (Case 948G), measuring 4.9 mm × 4.4 mm with 0.65 mm lead pitch. Key dimensions include body height ≤1.20 mm, lead thickness 0.10–0.20 mm, and seating plane coplanarity ≤0.10 mm. These specifications are defined in the Package Dimensions drawing on page 5 of the onsemi datasheet and comply with JEDEC MO-153 standards.
MC74LVX32DT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC74LVX32DT FAQ
1.How can I place an order for MC74LVX32DT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LVX32DT 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 MC74LVX32DT reliable?
The price and inventory of MC74LVX32DT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LVX32DT is usually 5 days.
3.What payment methods are accepted for MC74LVX32DT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LVX32DT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LVX32DT?
MC74LVX32DT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LVX32DT 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 MC74LVX32DT?
For technical support, including MC74LVX32DT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LVX32DT requirements.
6.How does Aetrix verify that MC74LVX32DT is sourced from the original manufacturer or authorized distributors?
All MC74LVX32DT 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 MC74LVX32DT meets industry standards.
7.What is the process for return or replacement of MC74LVX32DT?
All MC74LVX32DT units undergo pre-shipment inspection (PSI). If there is an issue with MC74LVX32DT, 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 MC74LVX32DT part is unused and in its original packaging.
Return procedure for MC74LVX32DT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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