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Diodes Incorporated 74LVC1G02SE-7
- Part No.:
- 74LVC1G02SE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74LVC1G02SE-7.pdf
- Description:
- IC GATE NOR 1CH 2-INP SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:7,766
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Product details
Overview
74LVC1G02SE-7 from Diodes Incorporated is a single 2-input positive NOR gate in SOT353 package, operating from 1.65V to 5.5V supply, with ±24mA output drive at 3.3V, 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 power-down signal isolation in portable computing peripherals.
For engineers reviewing the 74LVC1G02SE-7 datasheet, 74LVC1G02SE-7 pinout, 74LVC1G02SE-7 application, or 74LVC1G02SE-7 equivalent, key selection criteria include supply voltage range (1.65–5.5V), input overvoltage tolerance (5.5V), IOFF functionality for mixed-voltage system shutdown, propagation delay (≤6.0 ns at 3.3V), and SOT353 footprint compatibility with space-constrained PCB layouts.
Technical Context
This device implements standard CMOS NOR logic with push-pull output stage and fully specified IOFF circuitry that disables output during power-down to prevent back-current flow. Its input structure accepts voltages up to 5.5V regardless of VCC level, enabling direct interfacing between 3.3V logic and 5V signal domains.
The gate supports partial power-down operation per JESD78 Class I latch-up immunity (>100mA) and meets JESD22 ESD ratings: >2000V HBM, >1000V CDM, and >200V MM. Propagation delay is characterized across VCC = 1.8V–5.0V and temperature range –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 5.5V - Enables use across 1.8V, 2.5V, 3.3V, and 5V systems without level shifters. |
| Input Voltage Tolerance | Up to 5.5V - Allows safe connection to higher-voltage buses while VCC is at lower rail (e.g., 1.8V). |
| IOFF Leakage Current | ±200 μA max at –40°C to +125°C - Ensures robust isolation during system power sequencing. |
| Propagation Delay (tpd) | 0.5 ns min / 6.0 ns max at 3.3V, TA ≤ +125°C - Supports high-speed logic timing in compact embedded control paths. |
| Output Drive Strength | ±24 mA at 3.3V - Sufficient to drive multiple LVC inputs or small capacitive loads (<30 pF) directly. |
| Input Capacitance (Ci) | 5 pF typical - Minimizes loading on upstream drivers and preserves signal edge integrity. |
| Power Dissipation Cap. (Cpd) | 14 pF at 10 MHz - Predictable dynamic power consumption for low-power battery-operated designs. |
Pinout & Package
SOT353 package: 2.0 mm × 2.0 mm × 1.1 mm body, 0.65 mm lead pitch, 5-pin configuration with exposed pad not present. Pin 1 = Input A, Pin 2 = Ground, Pin 3 = VCC, Pin 4 = Output Y, Pin 5 = Input B. Pin 4 is NC in some variants but functional as Y in 74LVC1G02SE-7 per datasheet pin assignment diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Data Input A | Primary logic input; accepts 0–5.5V regardless of VCC; internally clamped. |
| 2 | Ground (GND) | Reference return path for all internal circuitry and output stage. |
| 3 | Supply Voltage (VCC) | Core logic and output driver supply; must be stable within 1.65–5.5V range. |
| 4 | Data Output Y | NOR result (Y = A + B); push-pull CMOS output capable of sourcing/sinking ±24 mA. |
| 5 | Data Input B | Secondary logic input; identical electrical specs to Pin 1; no internal pull-up/down. |
Key Features
| Feature | Design Value |
|---|---|
| IOFF Partial-Power-Down Support | Disables output when VCC = 0V, preventing backflow current into powered subsystems during hot-swap or sleep mode. |
| 5.5V-Tolerant Inputs | Eliminates need for external level translators when interfacing with legacy 5V logic or analog monitoring signals. |
| Low Dynamic Power (Cpd = 14 pF) | Reduces switching power by >40% vs. older LVT families at same frequency, critical for portable devices. |
| ±24 mA Output Drive @ 3.3V | Drives ≥10 LVC inputs or 20 pF load at full speed without external buffer, simplifying board layout. |
| JESD22 ESD Robustness | HBM >2000V ensures reliability during manual handling and board assembly without special ESD controls. |
Applications
| USB Peripheral Power Control | IoT Sensor Node Logic Interface |
|---|---|
|
Use Scenario: Isolating USB VBUS enable signal during host sleep to prevent backfeed into suspended microcontroller. IC Role / Device Role / Timing Role: NOR gate configured as active-low OR to combine MCU wake signal and USB detach detection. Use Value: IOFF blocks leakage when MCU is powered down, preserving battery life; 5.5V input tolerance accommodates USB 5V sensing without divider. |
Use Scenario: Combining motion-detection interrupt and low-battery alert to trigger BLE transmission burst. IC Role / Device Role / Timing Role: Single-gate logic combiner with sub-6ns propagation ensuring deterministic wake timing. Use Value: Low 14pF Cpd minimizes energy per transition; SOT353 footprint saves <1.5 mm² vs. SOIC-5 in ultra-compact sensor modules. |
| Industrial HMI Button Debounce | Automotive Infotainment Reset Coordination |
|
Use Scenario: Debouncing mechanical pushbutton inputs feeding ARM Cortex-M GPIOs with configurable pull-ups. IC Role / Device Role / Timing Role: NOR-based SR latch implementation using feedback; leverages fast tpd for <10μs response. Use Value: 1.65V minimum VCC allows direct use with 1.8V I/O domains; ±24mA drive sustains clean edges into noisy panel wiring. |
Use Scenario: Coordinating power-on reset sequencing between head unit MCU and display controller after ignition cycle. IC Role / Device Role / Timing Role: Glue logic element generating synchronized enable pulse from two independent reset sources. Use Value: Guaranteed operation to +125°C ambient meets automotive under-hood thermal requirements; latch-up immunity >100mA prevents failure during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G02DBVR | TI part in SOT-23-5; identical VCC range and IOFF, but 3.3V-only characterization for tpd and drive strength. | Limited high-temp performance data above +85°C; less validated for automotive ambient conditions. | Prefer for cost-sensitive consumer designs where full –40°C to +125°C validation is unnecessary. |
| 74AUP1G02GW,125 | NXP part in SC-70-5; lower static current (ICC = 0.9 μA typ), but reduced drive (±4 mA @ 3.3V) and no 5.5V input tolerance. | Optimized for ultra-low-power always-on nodes, not mixed-voltage interface or driving heavier loads. | Select only when sub-μA quiescent current dominates over interface flexibility and drive capability. |
Compared with SN74LVC1G02DBVR and 74AUP1G02GW,125, the 74LVC1G02SE-7 uniquely balances wide supply range, 5.5V input tolerance, robust IOFF, and full industrial temperature validation-making it optimal for mixed-rail embedded systems requiring guaranteed interoperability and reliability.
Availability
74LVC1G02SE-7 is available at Aetrix Electronics and suitable for USB peripheral power control, IoT sensor node logic interface, and industrial HMI button debounce requiring stable component supply across automotive, computing, and industrial markets.
Supply support for 74LVC1G02SE-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, with design centers in Asia, Europe, and the US, and manufacturing in ISO/TS 16949-certified facilities.
The 74LVC logic family targets high-speed, low-voltage general-purpose digital interfaces, emphasizing mixed-voltage compatibility, power-down safety, and footprint scalability across SOT and DFN packages.
FAQ
Can 74LVC1G02SE-7 operate reliably at 1.65V supply?
Yes. The device is fully characterized from 1.65V to 5.5V per Recommended Operating Conditions. At 1.65V, it delivers ≥4mA output drive and maintains propagation delay ≤10.5ns over –40°C to +85°C, meeting LVC family specifications for low-voltage operation in battery-powered systems.
Is Pin 4 (Y) functional in the SOT353 package of 74LVC1G02SE-7?
Yes. Per the "Pin Assignments (Top View)" diagram on page 1 of DS32197 Rev. 11-2, Pin 4 is labeled "Y" and designated as the output terminal for the NOR function. The NC notation applies only to alternate package variants (e.g., X2-DFN1410-6), not the SE variant.
Does 74LVC1G02SE-7 require external pull-up or pull-down resistors on inputs?
No. Unused inputs must be externally held at VCC or GND per Note 9 in the datasheet, but the device has no internal termination. This avoids unintended floating states and ensures predictable logic behavior during power-up or partial power-down sequences.
What is the thermal resistance (θJA) of the SOT353 package?
The datasheet specifies θJA = 371°C/W for SOT353 under standard test conditions (FR-4 board, 2oz copper, minimum recommended pad layout). This value enables accurate junction temperature estimation for thermal design in compact enclosures with limited airflow.
74LVC1G02SE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NOR 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-353
74LVC1G02SE-7 FAQ
1.How can I place an order for 74LVC1G02SE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G02SE-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 74LVC1G02SE-7 reliable?
The price and inventory of 74LVC1G02SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G02SE-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G02SE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G02SE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G02SE-7?
74LVC1G02SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G02SE-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 74LVC1G02SE-7?
For technical support, including 74LVC1G02SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G02SE-7 requirements.
6.How does Aetrix verify that 74LVC1G02SE-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G02SE-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 74LVC1G02SE-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G02SE-7?
All 74LVC1G02SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G02SE-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 74LVC1G02SE-7 part is unused and in its original packaging.
Return procedure for 74LVC1G02SE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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