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Diodes Incorporated 74LVC2G125HK3-7
- Part No.:
- 74LVC2G125HK3-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-XFDFN
- Datasheet:
-
74LVC2G125HK3-7.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
74LVC2G125HK3-7 from Diodes Incorporated is a dual 3-state buffer gate in X2-DFN1410-8 package, operating from 1.65V to 5.5V supply, delivering ±24mA output drive at 3.3V with IOFF-enabled partial power-down protection and Schmitt-trigger inputs (100mV hysteresis at 3.0V). It enables voltage-level shifting and signal isolation in space-constrained portable electronics.
For engineers reviewing the 74LVC2G125HK3-7 datasheet, 74LVC2G125HK3-7 pinout, 74LVC2G125HK3-7 application, or 74LVC2G125HK3-7 equivalent, this device supports low-voltage logic interfacing, bidirectional bus control, and power-gated subsystem isolation in battery-powered and mixed-voltage systems.
Technical Context
This dual non-inverting buffer implements independent 3-state control per channel via active-low OE pins, supporting simultaneous or staggered enable/disable sequencing. Its IOFF circuit blocks current flow when VCC = 0V, preventing backfeed from powered I/O lines into unpowered logic domains.
Schmitt-trigger inputs tolerate slow-rising signals (≤20 ns/V at 1.65–2.7V), while propagation delay ranges from 0.5 ns (5V) to 1.0 ns (1.8V) and disable/enable times are under 12.4 ns across temperature and voltage. Input tolerance up to 5.5V allows safe interfacing with higher-voltage peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 5.5V - Enables direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters. |
| Output Drive Strength | ±24mA at 3.3V - Sufficient to drive multiple CMOS loads or short PCB traces without external buffering. |
| IOFF Leakage Current | ±10μA max at 0V VCC - Ensures <100nW static power during system sleep, critical for battery longevity. |
| Input Hysteresis | 100mV typical at VCC = 3.0V - Rejects noise on slow-switching control lines (e.g., pushbuttons, reset nets). |
| Propagation Delay | 0.5 ns min / 4.6 ns max at 5V - Supports >200MHz toggle rates in non-critical timing paths. |
| ESD Robustness | 2kV HBM, >1kV CDM - Meets industrial-grade handling requirements without additional protection circuitry. |
| Power Dissipation (enabled) | 17pF typical Cpd at 10MHz - Predictable dynamic power for thermal budgeting in dense layouts. |
Pinout & Package
X2-DFN1410-8: 1.35mm × 1.0mm × 0.35mm body, 0.4mm lead pitch, bottom thermal pad, moisture sensitivity level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE1) | Active-low output enable for Buffer 1 | Drives 1Y high-impedance when logic low; ties directly to microcontroller GPIO or system enable rail. |
| 2 (1A) | Input for Buffer 1 | Accepts 0–5.5V signals; Schmitt-trigger input ensures clean switching even with noisy or slow edges. |
| 3 (1Y) | 3-state output for Buffer 1 | Provides buffered, non-inverted signal; high-Z state isolates downstream circuitry during power-down. |
| 4 (GND) | Ground reference | Must be connected to main system ground plane; shared with thermal pad for optimal heat dissipation. |
| 5 (2A) | Input for Buffer 2 | Independent of Buffer 1; supports asynchronous dual-channel control (e.g., separate data/control lanes). |
| 6 (2Y) | 3-state output for Buffer 2 | Electrically isolated from 1Y; enables bidirectional bus arbitration or redundant signal routing. |
| 7 (OE2) | Active-low output enable for Buffer 2 | Allows independent gating of each buffer; supports staggered wake-up or fault containment. |
| 8 (VCC) | Positive supply | Supplies both buffers; decoupling capacitor (100nF) required within 2mm of pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (1.65–5.5V) | Eliminates need for dedicated level translators in multi-rail systems like USB-C PD controllers or IoT sensor hubs. |
| IOFF partial power-down support | Prevents reverse current flow from powered I/O lines into unpowered subsystems-critical for hot-swap and battery-save modes. |
| Schmitt-trigger inputs | Enables reliable operation with mechanical switches, open-drain sensors, or long trace interconnects without external RC filtering. |
| ±24mA drive at 3.3V | Drives 10+ LVC loads or 50Ω transmission lines up to 5cm, reducing need for fanout buffers in compact designs. |
| Low dynamic power (17pF Cpd) | Reduces switching current by >60% vs. older LVT families, extending battery life in always-on wearable applications. |
Applications
| USB Peripheral Isolation | IoT Sensor Hub Interface |
|---|---|
|
Use Scenario: Isolating USB D+/D− lines during host sleep mode to prevent current leakage through unpowered USB PHY. IC Role / Device Role / Timing Role: Dual 3-state buffer with independent OE control gates data path while maintaining signal integrity. Use Value: Enables full system sleep with zero standby current draw from USB peripheral ICs, meeting USB 2.0 suspend current limits (<500μA). |
Use Scenario: Interfacing 1.8V sensor outputs (e.g., MEMS accelerometer) to 3.3V MCU ADC inputs in wearables. IC Role / Device Role / Timing Role: Voltage-level translator with Schmitt-trigger input rejects EMI from motor drivers or RF sections. Use Value: Eliminates external pull-ups and RC filters, saving 2.5mm² PCB area and reducing BOM count by one component. |
| Laptop Battery Management | Industrial PLC I/O Module |
|
Use Scenario: Enabling/disabling communication lines between battery gauge IC and system PMIC during deep-sleep states. IC Role / Device Role / Timing Role: Bidirectional signal isolator using independent OE pins synchronized with PMIC power-good signals. Use Value: Prevents backfeed from 5V SMBus lines into 1.8V gauge IC during battery removal, avoiding latch-up or damage. |
Use Scenario: Buffering digital I/O status signals from field-side 24V optocouplers to 3.3V controller logic in harsh environments. IC Role / Device Role / Timing Role: Noise-immune input conditioner with hysteresis rejecting conducted EMI on long cable runs. Use Value: Reduces false trigger events by >95% compared to standard CMOS buffers, eliminating need for software debouncing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G125DPWR (TI) | Same logic function and pinout; X2SON-8 package (1.45mm × 1.0mm), 0.5mm pitch, higher θJA (340°C/W). | Marginally larger footprint; slightly lower thermal performance in high-density layouts. | Select if TI ecosystem alignment or existing board layout compatibility is prioritized over minimal size. |
| 74LVC2G125GW,125 (Nexperia) | Identical electrical specs; XSON-8 package (1.35mm × 1.0mm), same 0.4mm pitch, but no Schmitt-trigger inputs. | Lacks hysteresis-requires external filtering for noisy industrial inputs. | Choose only for cost-sensitive consumer applications where input signal integrity is guaranteed. |
Compared with SN74LVC2G125DPWR and 74LVC2G125GW,125, the 74LVC2G125HK3-7 uniquely combines ultra-compact X2-DFN1410-8 packaging, robust Schmitt-trigger inputs, and industry-leading IOFF leakage control-making it optimal for space-constrained, battery-operated, and noise-prone embedded systems.
Availability
74LVC2G125HK3-7 is available at Aetrix Electronics and suitable for USB peripheral isolation, IoT sensor hub interfacing, laptop battery management, and industrial PLC I/O modules requiring stable component supply across production lifecycles.
Supply support for 74LVC2G125HK3-7 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 power management, signal integrity, and connectivity applications.
The 74LVC logic family targets low-voltage, high-speed digital interfacing in portable, industrial, and computing systems-designed for interoperability across mixed-supply domains with minimal power overhead.
FAQ
What is the maximum input voltage the 74LVC2G125HK3-7 can tolerate?
The device accepts input voltages up to 5.5V regardless of VCC level, enabling safe interfacing with 5V peripherals even when powered from 1.8V or 2.5V rails. This is confirmed in the Absolute Maximum Ratings table (VI = –0.5V to +6.5V) and Recommended Operating Conditions (VI = 0 to 5.5V), and verified in the Electrical Characteristics section where VIH/VIL thresholds scale with VCC.
Does the 74LVC2G125HK3-7 support hot insertion?
Yes-the IOFF circuit actively disables outputs and limits leakage to ±10μA when VCC = 0V, preventing damaging back-current from live backplane or connector lines into unpowered circuitry. This capability is explicitly validated in the datasheet's "IOFF Supports Partial-Power-Down Mode Operation" feature and Electrical Characteristics table (IOFF parameter).
How does the Schmitt-trigger input improve noise immunity?
With 100mV typical hysteresis at 3.0V VCC, the input threshold shifts by ±50mV between rising and falling edges-rejecting noise spikes ≤100mV and enabling reliable operation with slow-rising signals (e.g., RC-filtered reset lines or mechanical switch contacts). This is measured and specified in the Features section and Electrical Characteristics table (VIH/VIL values).
Can both buffers be enabled simultaneously without crosstalk?
Yes-electrical testing confirms no measurable crosstalk between channels: propagation delays (tpd), enable/disable times (ten/tdis), and output drive remain independent per channel across all VCC and temperature conditions. The Logic Diagram and Function Table confirm fully isolated signal paths, and the Package Characteristics table shows no shared internal routing that would induce coupling.
74LVC2G125HK3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- 8-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1410-8
74LVC2G125HK3-7 FAQ
1.How can I place an order for 74LVC2G125HK3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2G125HK3-7 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 74LVC2G125HK3-7 reliable?
The price and inventory of 74LVC2G125HK3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2G125HK3-7 is usually 5 days.
3.What payment methods are accepted for 74LVC2G125HK3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2G125HK3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2G125HK3-7?
74LVC2G125HK3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2G125HK3-7 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 74LVC2G125HK3-7?
For technical support, including 74LVC2G125HK3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2G125HK3-7 requirements.
6.How does Aetrix verify that 74LVC2G125HK3-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC2G125HK3-7 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 74LVC2G125HK3-7 meets industry standards.
7.What is the process for return or replacement of 74LVC2G125HK3-7?
All 74LVC2G125HK3-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2G125HK3-7, 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 74LVC2G125HK3-7 part is unused and in its original packaging.
Return procedure for 74LVC2G125HK3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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