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Diodes Incorporated 74LVC1G32W5-7
- Part No.:
- 74LVC1G32W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74LVC1G32W5-7.pdf
- Description:
- IC GATE OR 1CH 2-INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:111,751
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Product details
Overview
74LVC1G32W5-7 from Diodes Incorporated is a single 2-input positive OR gate in SOT25 package, operating from 1.65V to 5.5V supply, delivering ±24mA output drive at 3.3V, with 5.5V-tolerant inputs and IOFF partial power-down protection. It performs Boolean Y = A + B logic and is used for voltage-level shifting and signal isolation in portable computing peripherals.
For engineers reviewing the 74LVC1G32W5-7 datasheet, 74LVC1G32W5-7 pinout, 74LVC1G32W5-7 application, or 74LVC1G32W5-7 equivalent, key selection criteria include supply voltage range (1.65–5.5V), output drive strength (±24mA @ 3.3V), input overvoltage tolerance (5.5V), IOFF-enabled power-down isolation, and propagation delay (≤4.5ns @ 3.3V).
Technical Context
This device implements standard CMOS positive-OR logic (Y = A + B) with push-pull output stage and no internal pull-ups or pull-downs. Its IOFF circuit actively disables output during power-down to prevent back-current flow, enabling safe use in mixed-voltage, hot-swap, or partial-power-down systems.
Input thresholds are VIH ≥ 0.7×VCC (at 4.5–5.5V) and VIL ≤ 0.3×VCC, ensuring reliable TTL-level interfacing across its full 1.65–5.5V operating range. Propagation delay is specified down to 0.5ns typical at 5V, supporting high-speed digital control paths in battery-powered devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65V to 5.5V - supports direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Output Drive | ±24mA @ 3.3V - sufficient to drive multiple LVC loads or small capacitive traces without buffering |
| Input Tolerance | 5.5V - enables use as level shifter from higher-voltage inputs into lower-VCC systems |
| Propagation Delay | 4.5ns max @ 3.3V - meets timing requirements for sub-200MHz control signal routing |
| IOFF Leakage | ±200μA max @ 125°C - ensures robust isolation during system sleep or power sequencing |
| ESD Rating | 2000V HBM - exceeds JEDEC JESD22-A114 for handling safety in assembly environments |
| Operating Temp | −40°C to +125°C - qualified for industrial and extended-temperature embedded applications |
Pinout & Package
SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) is a 5-pin surface-mount package with exposed pad not electrically connected. Pin 1 is marked by a dot or chamfered corner; pin numbering follows standard counter-clockwise sequence when viewed from top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | First OR operand; 5.5V-tolerant, compatible with TTL and LVTTL logic levels |
| 2 (B) | Data Input | Second OR operand; identical electrical characteristics to Pin 1 |
| 3 (GND) | Ground Reference | Primary return path for output current and internal bias; must be low-impedance |
| 4 (Y) | Data Output | Push-pull OR result; drives high/low actively; no open-drain behavior |
| 5 (VCC) | Power Supply | Single-supply rail; powers internal logic and output stage; decoupling required within 5mm |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC Range | 1.65–5.5V operation enables drop-in replacement across legacy and modern logic families |
| IOFF Power-Down | Output goes high-impedance when VCC = 0V, preventing backfeed into powered subsystems |
| 5.5V-Tolerant Inputs | Accepts 5V signals while powered from 1.8V or 2.5V, eliminating external level-shifters |
| Low Dynamic Power | Typical ICC = 0.1μA @ 3.3V - reduces quiescent current in always-on control circuits |
| Small Footprint | SOT25 occupies only 8.4 mm² PCB area - ideal for space-constrained mobile and wearable designs |
Applications
| USB Peripheral Power Control | IoT Sensor Node Logic Interface |
|---|---|
Use Scenario: Enabling/disabling USB VBUS power to downstream peripherals based on host command and enumeration status. IC Role / Device Role / Timing Role: OR gate combines "host enable" and "device ready" signals to assert power-enable line with <4.5ns latency. Use Value: Eliminates need for discrete MOSFET + resistor network; IOFF prevents backfeed when host sleeps. | Use Scenario: Merging wake-up triggers from motion, temperature, and button inputs in ultra-low-power sensor nodes. IC Role / Device Role / Timing Role: Single OR gate aggregates asynchronous interrupt sources to wake MCU from deep-sleep mode. Use Value: Sub-1μA ICC and IOFF allow continuous monitoring with no leakage penalty during sleep cycles. |
| Industrial PLC I/O Expansion | Automotive Infotainment Status Monitoring |
Use Scenario: Combining fault flags from multiple I/O modules (overcurrent, short-circuit, timeout) into a centralized alarm bus. IC Role / Device Role / Timing Role: Positive OR function provides fail-safe "any fault active" indication with deterministic propagation. Use Value: 125°C rating and ±24mA drive ensure reliability in uncooled control cabinets with long trace runs. | Use Scenario: Monitoring readiness of display, audio codec, and Bluetooth module before enabling infotainment boot sequence. IC Role / Device Role / Timing Role: OR gate validates "all subsystems powered and stable" condition prior to software initialization. Use Value: 5.5V-tolerant inputs accept reset signals from 5V analog subsystems while operating from 3.3V domain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G32DBVR | SOT-23-5 package (same pinout), identical electrical specs, TI-branded | No functional difference; same thermal resistance (θJA = 204°C/W) and footprint compatibility | Select for TI-aligned BOMs or dual-sourcing where second-source qualification is required |
| 74AUP1G32GW,125 | NXP variant; lower VCC min (0.8V), lower IOH/IOL (±4mA @ 1.2V), higher propagation delay (11.5ns @ 1.2V) | Better for ultra-low-voltage battery operation but unsuitable for 3.3V/5V interface roles requiring ±24mA drive | Choose only when operating below 1.65V or when ultra-low static power (<0.5μA) outweighs speed and drive needs |
Compared with SN74LVC1G32DBVR, the 74LVC1G32W5-7 offers identical performance and footprint but different tape-and-reel packaging (3000 vs. 3000 units) and manufacturer support channels; versus 74AUP1G32GW, it delivers 6× higher output drive and 2.5× faster switching at 3.3V, making it preferred for mixed-voltage signal conditioning.
Availability
74LVC1G32W5-7 is available at Aetrix Electronics and suitable for USB peripheral control, IoT sensor node logic aggregation, and industrial PLC fault monitoring requiring stable component supply, consistent parametric performance, and long-term lifecycle availability.
Supply support for 74LVC1G32W5-7 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and logic solutions for industrial, computing, consumer, and automotive markets.
The 74LVC logic family targets high-speed, low-voltage general-purpose digital interfacing with robust mixed-voltage operation and power-aware features like IOFF.
FAQ
Can 74LVC1G32W5-7 operate with VCC = 1.5V?
No. The absolute minimum recommended VCC is 1.65V per DS32200 Rev. 11–2. At 1.5V, input thresholds and output drive fall outside specification - VOH may drop below 0.7×VCC, risking logic misinterpretation in downstream receivers.
Is Pin 3 (GND) internally connected to the SOT25 exposed pad?
No. The SOT25 package for 74LVC1G32W5-7 has no exposed thermal pad; Pin 3 is the sole GND connection. Diodes' official package drawing confirms no thermal pad exists - PCB layout should follow the 3.0mm × 2.8mm outline with standard solder mask defined pads.
Does IOFF activate automatically when VCC drops below a threshold?
Yes. IOFF engages when VCC falls near 0V (typically <0.2V), disabling both output FETs regardless of input states. This occurs passively via internal bias circuitry - no enable pin or external control is needed.
What is the maximum capacitive load this OR gate can drive reliably at 3.3V?
Based on tpd degradation data in DS32200, the device maintains ≤6.0ns max propagation delay up to 50pF load. For stable 10MHz operation (Cpd = 21pF typ), it supports ≤30pF total trace + receiver capacitance without added series termination.
74LVC1G32W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 1.65V ~ 5.5V
- Current - Quiescent (Max):
- 200 µA
- Current - Output High, Low:
- 32mA, 32mA
- Input Logic Level - Low:
- 0.7V ~ 0.8V
- Input Logic Level - High:
- 1.7V ~ 2V
- Max Propagation Delay @ V, Max CL:
- 1.7ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
74LVC1G32W5-7 FAQ
1.How can I place an order for 74LVC1G32W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G32W5-7 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 74LVC1G32W5-7 reliable?
The price and inventory of 74LVC1G32W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G32W5-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G32W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G32W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G32W5-7?
74LVC1G32W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G32W5-7 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 74LVC1G32W5-7?
For technical support, including 74LVC1G32W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G32W5-7 requirements.
6.How does Aetrix verify that 74LVC1G32W5-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G32W5-7 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 74LVC1G32W5-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G32W5-7?
All 74LVC1G32W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G32W5-7, 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 74LVC1G32W5-7 part is unused and in its original packaging.
Return procedure for 74LVC1G32W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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