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Diodes Incorporated 74LVCE1G02W5-7
- Part No.:
- 74LVCE1G02W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74LVCE1G02W5-7.pdf
- Description:
- IC GATE NOR 1CH 2-INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,997
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Product details
Overview
74LVCE1G02W5-7 from Diodes Incorporated is a single 2-input positive NOR gate with totem-pole CMOS output, operating from 1.4V to 5.5V supply, featuring ±24mA drive at 3.3V, 5.5V-tolerant inputs, and IOFF-enabled partial power-down protection. It enables voltage-level shifting and mixed-voltage logic interfacing in portable computing and consumer electronics.
For engineers reviewing the 74LVCE1G02W5-7 datasheet, 74LVCE1G02W5-7 pinout, 74LVCE1G02W5-7 application, or 74LVCE1G02W5-7 equivalent, key selection criteria include supply voltage flexibility (1.4–5.5V), 5.5V input tolerance for level translation, IOFF functionality for system power sequencing, and SOT25 package compatibility with high-density PCB layouts.
Technical Context
This device implements the Boolean function Y = A + B (positive NOR) using standard CMOS totem-pole output architecture. Its IOFF circuitry actively disables outputs during power-down, preventing backflow current when VCC = 0V while inputs remain biased at up to 5.5V.
It supports operation across five voltage domains (1.5V, 1.8V, 2.5V, 3.3V, 5V) with characterized propagation delays as low as 0.6ns (typ.) at 3.3V/15pF load. Input thresholds scale with VCC per JEDEC JESD8-5A, enabling reliable TTL-level interface at 3.3V and 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 5.5V - Enables direct use in battery-powered (1.5V/1.8V) and legacy 3.3V/5V systems without level shifters. |
| Input Voltage Tolerance | Up to 5.5V - Allows safe connection to higher-voltage buses (e.g., 5V I²C pull-ups) while powered from 1.8V or 2.5V rails. |
| Output Drive Strength | ±24mA at 3.3V - Sufficient to drive multiple LVC/LVCE loads or small capacitive loads (<30pF) without external buffers. |
| Propagation Delay | 0.6ns (typ.) at 3.3V/15pF - Supports >300MHz toggle rates in short-path logic applications like address decoding or enable gating. |
| IOFF Leakage | ±10μA max - Ensures <100nA system standby current contribution when VCC = 0V and inputs held at 5.5V. |
| ESD Robustness | 2kV HBM / 200V MM - Meets industrial I/O port immunity requirements without external protection diodes. |
| Power Dissipation Cap. | 23pF (typ. at 10MHz) - Predictable dynamic power consumption for low-power budgeting in always-on logic blocks. |
Pinout & Package
SOT25 (SC-74A) 5-pin surface-mount package with gull-wing leads, 1.27mm pitch, and exposed thermal pad not present. Pin 1 marked by notch or bevel; pin 5 is Vcc, pin 1 is A, pin 2 is B, pin 3 is GND, pin 4 is Y.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Data Input | First NOR operand; accepts 0–5.5V logic levels independent of VCC; internally clamped. |
| B | Data Input | Second NOR operand; identical electrical behavior to Pin A; both inputs fully 5.5V tolerant. |
| GND | Ground Reference | Return path for all internal logic and output current; must be connected before Vcc for safe power sequencing. |
| Y | CMOS Output | Inverting NOR result (Y = NOT(A OR B)); drives rail-to-rail with ±24mA capability at 3.3V. |
| Vcc | Supply Voltage | Core logic and output driver supply; IOFF activates automatically if Vcc drops below 0.2V during power-down. |
Key Features
| Feature | Design Value |
|---|---|
| Extended Supply Range | Operates from 1.4V (battery fresh) to 5.5V (overvoltage margin), eliminating need for separate voltage regulators in multi-rail systems. |
| 5.5V-Tolerant Inputs | Accepts 5V logic signals while powered from 1.8V, enabling seamless interface between legacy peripherals and modern low-voltage SoCs. |
| IOFF Partial Power-Down | Outputs enter high-impedance state with <±10μA leakage when Vcc = 0V, preventing backfeed into unpowered subsystems. |
| High-Speed at Low Voltage | Delivers 1.3ns max tPD at 1.8V - 30% faster than standard LVC gates, critical for timing-critical enable paths in portable devices. |
| Green Packaging | SOT25 variant uses halogen-free molding compound and lead-free finish compliant with RoHS Directive 2002/95/EC. |
Applications
| USB Peripheral Interface | Low-Power Sensor Hub Logic |
|---|---|
|
Use Scenario: Level-shifting control signals between a 5V USB transceiver and a 1.8V microcontroller GPIO. IC Role / Device Role / Timing Role: NOR gate configured as active-low enable translator, converting 5V USB reset assertion to 1.8V-compatible active-low enable pulse. Use Value: Eliminates discrete level shifter ICs; IOFF prevents current injection into unpowered MCU during USB hot-plug events. |
Use Scenario: Combining interrupt outputs from three ultra-low-power environmental sensors (I²C, SPI, analog comparator) into a single wake-up signal. IC Role / Device Role / Timing Role: Active-low NOR gate aggregating sensor interrupts; output pulled high via weak 100kΩ resistor to 1.8V rail. Use Value: Reduces MCU wake-up latency by 2.1ns vs. LVC equivalents at 1.8V, preserving sub-μA sleep current via IOFF during deep-sleep mode. |
| Mobile Display Backlight Control | Industrial PLC I/O Expansion |
|
Use Scenario: Enabling backlight LED driver only when both display enable and brightness PWM are asserted. IC Role / Device Role / Timing Role: NOR gate used in inverted logic configuration (inputs inverted externally) to generate AND-like enable signal for DC-DC backlight controller. Use Value: Delivers 24mA sink capability at 3.3V to directly drive enable pin of TPS61165, avoiding additional transistor stage. |
Use Scenario: Interfacing 24V field inputs to a 3.3V FPGA-based controller in DIN-rail mounted I/O module. IC Role / Device Role / Timing Role: Input conditioning gate accepting 24V optocoupler outputs via 10kΩ pull-down; output drives FPGA GPIO with rail-to-rail swing. Use Value: 5.5V input tolerance allows direct connection to 24V opto-collector outputs (clamped at 5.5V), reducing BOM count by one resistor divider per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G02DBVR | Supply range 1.65–5.5V; no 5.5V input tolerance; IOFF not supported; 32mA drive at 3.3V. | Lacks mixed-voltage safety; unsuitable for 5V-tolerant level shifting; requires external power sequencing controls. | Select when only 3.3V/5V systems are targeted and IOFF is unnecessary. |
| 74AUP1G02GW,125 | Supply range 0.8–3.6V; 3.6V max input; IOFF supported; 4mA drive at 3.3V; 1.8ns tPD min. | Lower drive limits use case to ultra-low-power sensor aggregation; incompatible with 5V interfaces. | Select for sub-1V battery operation where 5V tolerance is irrelevant and power is constrained to <1μA ICC. |
Compared with SN74LVC1G02DBVR and 74AUP1G02GW,125, the 74LVCE1G02W5-7 uniquely balances wide supply range (1.4–5.5V), 5.5V input tolerance, robust IOFF, and 24mA drive-making it the only option supporting mixed-voltage level translation *and* partial power-down in space-constrained SOT25 layouts.
Availability
74LVCE1G02W5-7 is available at Aetrix Electronics and suitable for USB peripheral design, low-power sensor hubs, mobile display control, and industrial I/O expansion requiring stable component supply across automotive-grade temperature ranges and long-lifecycle production programs.
Supply support for 74LVCE1G02W5-7 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, cost-optimized components for consumer, industrial, and computing markets.
The 74LVCE logic family targets low-voltage, mixed-supply digital interfacing with emphasis on power-down safety, voltage tolerance, and footprint efficiency-designed specifically for portable and battery-operated electronics requiring robust level translation.
FAQ
Can 74LVCE1G02W5-7 operate reliably at 1.4V supply?
Yes. The device is fully characterized down to 1.4V with guaranteed propagation delay ≤7.2ns (CL=15pF) and output drive ≥3mA. At this voltage, input thresholds scale to 0.65×VCC (≈0.91V), ensuring noise margins >300mV in typical PCB environments with controlled rise times.
What happens to the output when Vcc = 0V and inputs are held at 5.5V?
The IOFF circuit forces the output into high-impedance state with leakage current ≤±10μA, preventing reverse current flow from 5.5V inputs into the unpowered Vcc rail. This protects downstream power supplies and avoids latch-up in interconnected logic domains.
Is the SOT25 package thermally adequate for continuous 24mA output current?
Yes. With θJA = 204°C/W on standard FR-4 (2oz Cu), dissipation of 80mW (3.3V × 24mA) raises junction temperature by ≤16.3°C above ambient. Derating is unnecessary up to +85°C ambient, satisfying industrial reliability requirements.
Does the 74LVCE1G02W5-7 support hot insertion into live backplanes?
No. While 5.5V input tolerance and IOFF improve robustness, the device lacks bus-hold, fail-safe, or hot-swap controllers. Live insertion into powered backplanes may cause transient overcurrent or ground bounce; use only in controlled power-sequenced systems.
74LVCE1G02W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVCE
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NOR 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-25
74LVCE1G02W5-7 FAQ
1.How can I place an order for 74LVCE1G02W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCE1G02W5-7 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 74LVCE1G02W5-7 reliable?
The price and inventory of 74LVCE1G02W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCE1G02W5-7 is usually 5 days.
3.What payment methods are accepted for 74LVCE1G02W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCE1G02W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCE1G02W5-7?
74LVCE1G02W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCE1G02W5-7 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 74LVCE1G02W5-7?
For technical support, including 74LVCE1G02W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCE1G02W5-7 requirements.
6.How does Aetrix verify that 74LVCE1G02W5-7 is sourced from the original manufacturer or authorized distributors?
All 74LVCE1G02W5-7 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 74LVCE1G02W5-7 meets industry standards.
7.What is the process for return or replacement of 74LVCE1G02W5-7?
All 74LVCE1G02W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCE1G02W5-7, 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 74LVCE1G02W5-7 part is unused and in its original packaging.
Return procedure for 74LVCE1G02W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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