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Diodes Incorporated 74LVCE1G32SE-7
- Part No.:
- 74LVCE1G32SE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74LVCE1G32SE-7.pdf
- Description:
- IC GATE OR 1CH 2-INP SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:23,975
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Product details
Overview
74LVCE1G32SE-7 from Diodes Incorporated is a single 2-input positive OR gate in SOT353 package, operating from 1.4V to 5.5V supply, with 5.5V-tolerant inputs, ±24mA output drive at 3.3V, and IOFF-enabled partial power-down protection. It serves as a voltage-level-shifting logic buffer in mixed-voltage I/O interfaces.
For engineers reviewing the 74LVCE1G32SE-7 datasheet, 74LVCE1G32SE-7 pinout, 74LVCE1G32SE-7 application, or 74LVCE1G32SE-7 equivalent, this page delivers verified electrical specs, real-world use cases, validated alternatives, and supply-chain support for embedded logic integration.
Technical Context
This device implements the Boolean OR function (Y = A + B) using CMOS technology with totem-pole output stage. Its IOFF circuit actively disables outputs during power-down, preventing back-current flow when VCC = 0V while inputs remain biased at up to 5.5V.
It supports wide-voltage operation (1.4–5.5V), delivers 2.9ns max propagation delay at 3.3V/15pF, and maintains input thresholds scalable with VCC - e.g., VIH = 0.65×VCC (1.4–1.95V range) - enabling reliable interfacing across TTL and sub-2V logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Positive OR gate: Y = A + B; enables active-high signal combining and bus arbitration |
| Supply Voltage Range | 1.4V to 5.5V; supports direct interface between 1.8V, 2.5V, 3.3V, and 5V domains |
| Input Voltage Tolerance | Up to 5.5V independent of VCC; allows safe connection to higher-voltage buses without level shifters |
| Output Drive Strength | ±24mA at VCC = 3.3V; sufficient to drive multiple LVC/LVCE loads or small capacitive traces |
| Propagation Delay | 0.7–2.9ns (max) at VCC = 3.3V, CL = 15pF; meets timing requirements for 300+ MHz data paths |
| IOFF Leakage | <±10μA at VI/VO = 5.5V, VCC = 0V; ensures robust isolation during system sleep states |
| ESD Robustness | >2000V HBM, >200V MM; withstands handling and board-level ESD events without latch-up |
Pinout & Package
SOT353 (SC-70-5) package: 5-pin, surface-mount, 1.25mm × 2.1mm footprint, 0.65mm pitch, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A | Primary logic input; accepts 0–5.5V regardless of VCC; compatible with TTL and CMOS levels |
| 2 | B | Secondary logic input; identical voltage tolerance and threshold behavior as Pin 1 |
| 3 | GND | Ground reference for all internal circuitry and output stage; must be low-impedance |
| 4 | Y | Push-pull output; drives high/low actively; supports bus driving and fanout to ≥10 LVC loads |
| 5 | Vcc | Power supply input; regulates internal bias; IOFF activates automatically when Vcc = 0V |
Key Features
| Feature | Design Value |
|---|---|
| Extended supply range (1.4–5.5V) | Enables single logic device deployment across multi-rail systems without external regulators |
| 5.5V-tolerant inputs | Eliminates need for discrete level translators when interfacing legacy 5V peripherals to low-voltage MCUs |
| IOFF partial power-down | Prevents backfeeding and bus contention during hot-swap or deep-sleep modes in portable devices |
| ±24mA drive at 3.3V | Supports direct driving of LED indicators, small relays, or termination networks without buffers |
| Low dynamic power (Cpd = 21pF) | Reduces switching current consumption in high-frequency clock distribution or data strobe paths |
Applications
| USB Peripheral Interface | Industrial Sensor Hub |
|---|---|
Use Scenario: OR-ing interrupt signals from multiple USB devices (e.g., keyboard, mouse, HID) into a single MCU IRQ line. IC Role / Device Role / Timing Role: Positive OR gate performing wired-OR logic aggregation with sub-3ns latency. Use Value: Reduces GPIO count on host controller; eliminates software polling; preserves deterministic interrupt response. |
Use Scenario: Combining fault alerts from temperature, pressure, and humidity sensors in a field-deployed environmental monitor. IC Role / Device Role / Timing Role: Fault-signal consolidator with 5.5V-tolerant inputs accepting open-drain outputs from diverse sensor ICs. Use Value: Enables unified fault reporting over long cable runs; avoids voltage translation components in mixed-supply sensor nodes. |
| Laptop Battery Management | Automotive Infotainment Gateway |
Use Scenario: Merging battery-charger ready and fuel-gauge alert signals before routing to system power controller. IC Role / Device Role / Timing Role: Power-domain boundary logic element with IOFF isolation during suspend-to-RAM cycles. Use Value: Prevents leakage-induced battery drain during sleep; maintains signal integrity across 1.8V/3.3V domain crossings. |
Use Scenario: OR-ing CAN transceiver error flags and audio codec reset requests in a head-unit control module. IC Role / Device Role / Timing Role: Multi-source event combiner with ESD-hardened inputs meeting automotive AEC-Q100 stress requirements. Use Value: Simplifies diagnostic interrupt architecture; improves system-level fault detection speed by 2.5× vs. software polling. |
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 | Wider industrial temp range (–40°C to +125°C); lower max tPD (2.5ns @ 3.3V); no IOFF | Lacks power-down isolation; unsuitable for hot-plug or multi-rail sleep scenarios requiring backflow prevention | Select when extended temperature operation is critical and system power sequencing guarantees no floating VCC states |
| 74AUP1G32GW,125 | Lower static current (ICC = 0.9μA typ); higher VIL threshold at 1.8V; no 5.5V input tolerance | Requires external clamping for >3.6V inputs; incompatible with 5V legacy peripherals without level shifters | Prefer for ultra-low-power always-on sensor nodes where input voltage never exceeds 3.3V |
Compared with SN74LVC1G32DBVR and 74AUP1G32GW,125, the 74LVCE1G32SE-7 uniquely combines 5.5V input tolerance, IOFF, and 1.4V minimum VCC - making it the only choice for robust mixed-voltage OR logic in battery-powered or hot-swappable systems.
Availability
74LVCE1G32SE-7 is available at Aetrix Electronics and suitable for USB peripheral aggregation, industrial sensor hubs, and laptop battery management systems requiring stable component supply across extended product lifecycles.
Supply support for 74LVCE1G32SE-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, and consumer markets.
The 74LVCE logic family targets low-voltage, mixed-supply digital interface applications - delivering interoperability, power-down safety, and robust ESD performance in space-constrained designs.
FAQ
Can 74LVCE1G32SE-7 operate reliably at 1.4V supply?
Yes. The device is fully characterized down to 1.4V VCC, with guaranteed tPD ≤7.2ns (CL=15pF) and VIH/VIL thresholds scaled accordingly (e.g., VIH = 0.65×VCC). Input thresholds remain valid, and output drive meets specification at this minimum voltage.
What happens to the output when VCC = 0V and inputs are pulled to 5V?
The IOFF circuit activates automatically, disabling the output stage and limiting leakage to <±10μA. This prevents current backflow from input pins through the output to ground or other powered rails, protecting downstream circuitry during partial power-down.
Is the SOT353 package thermally adequate for continuous 24mA output drive?
Yes. With θJA = 371°C/W and PD ≈ 80mW at 24mA/3.3V, junction temperature rise is ~30°C above ambient - well within the –40°C to +85°C operating range. PCB copper area per Diodes AP02001 layout further reduces thermal resistance.
Does 74LVCE1G32SE-7 support hot insertion into a live 3.3V bus?
Yes. Its 5.5V-tolerant inputs and IOFF functionality allow safe connection while the host system is powered. Inputs may be driven at up to 5.5V even when VCC is unpowered or ramping, and the output remains high-impedance until VCC stabilizes above ~0.8V.
74LVCE1G32SE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVCE
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 1.4V ~ 5.5V
- Current - Quiescent (Max):
- 10 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:
- 3.6ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
74LVCE1G32SE-7 FAQ
1.How can I place an order for 74LVCE1G32SE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCE1G32SE-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 74LVCE1G32SE-7 reliable?
The price and inventory of 74LVCE1G32SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCE1G32SE-7 is usually 5 days.
3.What payment methods are accepted for 74LVCE1G32SE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCE1G32SE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCE1G32SE-7?
74LVCE1G32SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCE1G32SE-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 74LVCE1G32SE-7?
For technical support, including 74LVCE1G32SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCE1G32SE-7 requirements.
6.How does Aetrix verify that 74LVCE1G32SE-7 is sourced from the original manufacturer or authorized distributors?
All 74LVCE1G32SE-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 74LVCE1G32SE-7 meets industry standards.
7.What is the process for return or replacement of 74LVCE1G32SE-7?
All 74LVCE1G32SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCE1G32SE-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 74LVCE1G32SE-7 part is unused and in its original packaging.
Return procedure for 74LVCE1G32SE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVCE1G32SE-7 Tags
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