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Diodes Incorporated 74LVC1G125FZ4-7
- Part No.:
- 74LVC1G125FZ4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN
- Datasheet:
-
74LVC1G125FZ4-7.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 6XFDFN
- Quantity:
- Payment:
- Shipping:
Inventory:18,885
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Product details
Overview
74LVC1G125FZ4-7 from Diodes Incorporated is a single non-inverting 3-state buffer IC designed for voltage-level shifting and bus isolation in mixed-voltage digital systems. It operates from 1.65V to 5.5V, tolerates 5.5V inputs, delivers ±24mA output drive at 3.3V, and features IOFF circuitry for partial power-down protection-used in notebook I/O expansion, USB peripheral interface logic, and embedded controller signal conditioning.
For engineers reviewing the 74LVC1G125FZ4-7 datasheet, 74LVC1G125FZ4-7 pinout, 74LVC1G125FZ4-7 application, or 74LVC1G125FZ4-7 equivalent, key selection criteria include 3-state enable timing (tdis ≤ 6.5ns at 3.3V), 5.5V-tolerant inputs in sub-2V supply environments, thermal resistance (θJA = 460°C/W), and compatibility with DFN1410-6 PCB layout constraints.
Technical Context
This device implements a CMOS-based non-inverting buffer with active-low 3-state output control (OE). Its IOFF functionality disables both output FETs when VCC = 0V, blocking current backflow during power sequencing-critical for hot-swap and multi-rail system design.
The input structure supports TTL-level compatibility across all supply voltages (VIH min = 0.65×VCC down to 1.65V), while output drive strength scales with VCC (e.g., ±24mA at 3.3V, ±32mA at 4.5V), enabling robust interfacing between 1.8V/3.3V/5V domains without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 5.5V - enables direct use in 1.8V, 2.5V, 3.3V, and 5V systems without level translation |
| Input Voltage Tolerance | Up to 5.5V - allows safe connection to higher-voltage buses while powered from lower VCC |
| Output Drive Strength | ±24mA at VCC = 3.3V - sufficient to drive 50Ω transmission lines or multiple LVC loads |
| Propagation Delay | tpd = 2.1ns (typ) at 3.3V - supports >100MHz data rates in short-path routing |
| IOFF Leakage Current | ±200μA max at -40°C to +125°C - ensures reliable isolation during full power-down |
| ESD Protection | HBM > 2kV, CDM > 1kV - meets industrial-grade robustness requirements |
| Thermal Resistance θJA | 460°C/W - defines maximum power dissipation limit (≈115mW at ΔT = 53°C rise) |
Pinout & Package
X2-DFN1410-6 (1.4mm × 1.0mm × 0.4mm, 0.5mm pad pitch) - ultra-compact leadless package optimized for space-constrained portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-Low Output Enable | Drives Y high-impedance when HIGH; requires pull-down or controlled logic for default disable |
| 2 (GND) | Ground Reference | Primary return path for all internal logic and output current; must be low-inductance connection |
| 3 (VCC) | Power Supply Input | Supplies core logic and output drivers; decoupling capacitor required within 2mm |
| 4 (Y) | 3-State Output | Non-inverted replica of A when OE = LOW; high-Z when OE = HIGH - used for bus contention avoidance |
| 5 (NC) | No Connection | Internally unconnected pad; must remain floating or grounded per layout guidelines - no routing or soldering |
| 6 (A) | Data Input | Accepts 5.5V-tolerant signals regardless of VCC; compatible with 1.8V–5V logic families |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 1.65V–5.5V operation eliminates need for separate level-shifting ICs in multi-voltage SoC interfaces |
| IOFF Partial Power-Down | Prevents back-current flow from live buses into unpowered sections - essential for PCIe slot power sequencing |
| 5.5V-Tolerant Inputs | Enables direct connection to 5V legacy peripherals while operating from 1.8V microcontroller I/O rails |
| Low Dynamic Power | Cpd = 19pF (enabled), 3pF (disabled) - reduces switching noise and total system power in battery-powered devices |
| Small Footprint | X2-DFN1410-6 occupies only 1.4mm² PCB area - ideal for wearables and ultra-thin mobile accessories |
Applications
| USB Peripheral Interface | Embedded Controller I/O Expansion |
|---|---|
Use Scenario: Isolating USB hub status LEDs and button inputs from main SoC during suspend mode. IC Role / Device Role / Timing Role: 3-state buffer isolates 3.3V GPIO lines from 5V USB VBUS domain; OE tied to suspend signal. Use Value: Prevents leakage current into powered-down SoC while maintaining LED visibility via independent 5V rail. |
Use Scenario: Expanding GPIO count on an ARM Cortex-M4 MCU with limited native pins. IC Role / Device Role / Timing Role: Buffers and direction-controls SPI slave select lines between MCU and sensor array. Use Value: Enables simultaneous control of 8+ sensors using shared MISO/MOSI with individual chip-select buffering. |
| Mobile Display Data Path | Industrial Sensor Signal Conditioning |
Use Scenario: Level-shifting MIPI DSI clock and data lanes between 1.2V display driver and 1.8V application processor. IC Role / Device Role / Timing Role: Non-inverting buffer with matched propagation delay (tpd = 2.1ns) preserves signal integrity across voltage domains. Use Value: Maintains <10ps skew between differential pairs, avoiding eye-diagram closure in 1Gbps DSI links. |
Use Scenario: Isolating analog-to-digital converter (ADC) busy flag from FPGA control logic during power cycling. IC Role / Device Role / Timing Role: 3-state buffer gates ADC status line; OE synchronized to FPGA reset assertion. Use Value: Eliminates metastability risk during FPGA reconfiguration by forcing high-Z state until configuration completes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | SOT-23-5 package (3.0×2.8mm); higher θJA (204°C/W); same electrical specs | Better thermal performance in low-airflow industrial enclosures; larger footprint limits portable use | Select when board space permits and thermal margin >100°C is required over extended temperature range |
| 74LVC1G125FS3-7 | X2-DFN0808-4 (0.8×0.8mm); smaller size but higher θJA (400°C/W); identical logic function | Preferred for ultra-dense wearables where 0.6mm² area saving outweighs 15% higher junction temp rise | Choose when PCB real estate is constrained below 1.0mm² and ambient temperature stays <70°C |
Compared with SN74LVC1G125DBVR and 74LVC1G125FS3-7, the 74LVC1G125FZ4-7 balances minimal footprint (1.4mm²), moderate thermal resistance (460°C/W), and proven reliability in consumer-grade mobile designs-making it optimal for mid-density portable electronics requiring robust 3-state isolation.
Availability
74LVC1G125FZ4-7 is available at Aetrix Electronics and suitable for USB peripheral interface, embedded controller I/O expansion, and mobile display data path applications requiring stable component supply, consistent DFN1410-6 packaging, and guaranteed long-term availability through Diodes Incorporated's qualified manufacturing lines.
Supply support for 74LVC1G125FZ4-7 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, communications, and consumer markets-with emphasis on high-reliability, energy-efficient components.
The 74LVC logic family targets low-voltage, high-speed digital interfacing in portable and battery-powered systems-designed specifically to replace older 74HC/74AHC series with wider supply range, better noise immunity, and enhanced power-down safety.
FAQ
What is the maximum recommended operating temperature for the 74LVC1G125FZ4-7?
The device is rated for continuous operation from –40°C to +125°C ambient temperature. Junction temperature must not exceed +150°C; with θJA = 460°C/W, maximum allowable power dissipation is ~115mW at 25°C ambient. Thermal derating is required above 70°C ambient.
Can the 74LVC1G125FZ4-7 safely interface a 5V microcontroller output to a 1.8V FPGA input?
No-it is a non-inverting buffer only, not a level translator. While its inputs tolerate 5.5V, its output swings between GND and VCC. To drive a 1.8V FPGA input from a 5V source, use this device with VCC = 1.8V and ensure the 5V signal is applied only to the 5.5V-tolerant A input; the Y output will then be 1.8V-compatible.
Is the NC pin on the X2-DFN1410-6 package required to be grounded or left floating?
Pin 5 is internally unconnected and must remain electrically floating-neither grounded nor tied to any net. Diodes Incorporated's layout guidelines prohibit soldering or routing to this pad; doing so may cause mechanical stress or unintended capacitance affecting signal integrity.
Does the 74LVC1G125FZ4-7 support hot-plug insertion in powered systems?
Yes-its IOFF circuitry actively disables output FETs when VCC = 0V, preventing damaging back-current flow from live buses into unpowered devices. This feature complies with JEDEC JESD78 latch-up immunity (>100mA) and is validated for hot-swap use in USB and PCIe auxiliary signal paths.
74LVC1G125FZ4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- 6-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- 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-DFN1410-6
74LVC1G125FZ4-7 FAQ
1.How can I place an order for 74LVC1G125FZ4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G125FZ4-7 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 74LVC1G125FZ4-7 reliable?
The price and inventory of 74LVC1G125FZ4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G125FZ4-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G125FZ4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G125FZ4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G125FZ4-7?
74LVC1G125FZ4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G125FZ4-7 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 74LVC1G125FZ4-7?
For technical support, including 74LVC1G125FZ4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G125FZ4-7 requirements.
6.How does Aetrix verify that 74LVC1G125FZ4-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G125FZ4-7 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 74LVC1G125FZ4-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G125FZ4-7?
All 74LVC1G125FZ4-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G125FZ4-7, 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 74LVC1G125FZ4-7 part is unused and in its original packaging.
Return procedure for 74LVC1G125FZ4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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