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Diodes Incorporated 74LVC1G126FW4-7
- Part No.:
- 74LVC1G126FW4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN
- Datasheet:
-
74LVC1G126FW4-7.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
74LVC1G126FW4-7 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-enabling safe use in hot-swap and battery-backed applications.
For engineers reviewing the 74LVC1G126FW4-7 datasheet, 74LVC1G126FW4-7 pinout, 74LVC1G126FW4-7 application, or 74LVC1G126FW4-7 equivalent, key selection criteria include its 1.0mm × 1.0mm X2-DFN1010-6 package, 3.3V/5V logic compatibility, sub-6ns propagation delay at 3.3V, and guaranteed 100μA IOFF leakage at 0V supply.
Technical Context
This device implements a CMOS-based single-gate buffer with active-high output enable (OE), where Y = A when OE = HIGH and Y = high-impedance when OE = LOW. Its IOFF functionality disables both output FETs during power-down, preventing back-current flow between powered and unpowered rails.
The input structure supports TTL-level compatibility across all VCC ranges (1.65–5.5V), while the output stage is characterized for rail-to-rail swing and ±24mA drive strength at 3.3V. Switching performance is specified down to -40°C and up to +125°C ambient, with tPD ≤ 6.0ns (typ) and tEN/tDIS ≤ 7.0ns (max) at 3.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65V to 5.5V - enables direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Input Voltage Tolerance | Up to 5.5V - allows safe connection to higher-voltage buses without level-shifting circuitry |
| Output Drive | ±24mA at VCC = 3.3V - sufficient to drive standard CMOS loads and short PCB traces |
| Propagation Delay | ≤6.0ns (max) at VCC = 3.3V - supports >100MHz data rates in point-to-point routing |
| IOFF Leakage | ±200μA max at VCC = 0V - ensures robust isolation during system sleep or hot-plug events |
| ESD Rating | HBM >2000V - meets industrial IEC 61000-4-2 system-level ESD immunity requirements |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
X2-DFN1010-6 is a 1.0mm × 1.0mm, 0.4mm height, 6-terminal leadless package with 0.35mm pad pitch and exposed thermal pad (not electrically connected). Pin 1 identifier is marked by a chamfered corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable Input | Active-HIGH control: drives Y to A when HIGH; places Y in high-Z when LOW |
| 2 (GND) | Ground Reference | Primary return path for all internal logic and output current |
| 3 (VCC) | Power Supply | Supplies core logic and output drivers; must be decoupled within 2mm of pin |
| 4 (Y) | Buffered Output | Non-inverted replica of A when OE = HIGH; high-impedance when OE = LOW |
| 5 (NC) | No Connection | Internally unconnected terminal; must remain floating or grounded per layout guidelines |
| 6 (A) | Data Input | Accepts 0–5.5V signals regardless of VCC setting; TTL-compatible at all supply voltages |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–5.5V) | Eliminates need for external level shifters when interfacing 1.8V microcontrollers to 3.3V peripherals |
| IOFF partial power-down | Prevents destructive backflow current when VCC = 0V but A or Y pins are biased by other live circuits |
| 5.5V-tolerant inputs | Enables direct connection to legacy 5V GPIOs or I²C pull-ups without series resistors or clamps |
| Low dynamic power (Cpd = 19pF) | Reduces switching noise and supply ripple in high-density, low-power portable designs |
| Small-footprint DFN package | 1.0mm × 1.0mm area saves >70% board space vs. SOT25, critical for wearables and compact modules |
Applications
| USB-C Docking Station Logic Interface | Industrial PLC Digital I/O Module |
|---|---|
|
Use Scenario: Isolating 3.3V MCU GPIOs from 5V USB-C CC line signaling during port negotiation. IC Role / Device Role / Timing Role: Bidirectional buffer enabling voltage translation and hot-plug-safe signal gating on CC1/CC2 lines. Use Value: IOFF prevents backfeed from 5V CC line into unpowered MCU during cable insertion, eliminating risk of latch-up. |
Use Scenario: Driving optocoupler inputs from a 1.8V FPGA I/O bank in a DIN-rail mounted controller. IC Role / Device Role / Timing Role: Level-shifting buffer translating low-voltage FPGA outputs to 5V-compatible opto-driver inputs. Use Value: 5.5V input tolerance allows direct connection to optocoupler anode without external resistors or diodes. |
| Automotive ADAS Camera Sensor Hub | Medical Wearable Data Acquisition Unit |
|
Use Scenario: Enabling/disabling LVDS serializer clock enable lines based on camera power state in a rear-view module. IC Role / Device Role / Timing Role: 3-state gate controlling clock distribution to serializer ICs during sleep/wake transitions. Use Value: Sub-6ns tPD ensures precise timing alignment between clock enable and data valid windows in high-speed imaging. |
Use Scenario: Isolating ultra-low-power MCU ADC reference voltage monitoring lines from noisy digital subsystems. IC Role / Device Role / Timing Role: Signal isolator preventing digital switching noise from coupling into precision analog measurement paths. Use Value: <100μA IOZ leakage preserves ADC reference stability during MCU deep-sleep modes with VCC off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G126DBVR | SOT-23-5 package (3.0 × 2.8 mm); no NC pin; 200mW θJA vs. 445°C/W for FW4 | Better thermal performance in airflow; larger footprint limits ultra-compact layouts | Select when board space permits and thermal dissipation >150mW is required |
| 74LVC1G125FW4-7 | Inverting logic function (Y = NOT A); identical package, specs, and IOFF behavior | Required where signal polarity inversion is needed in control path (e.g., active-low enable) | Select only when functional inversion matches system-level logic architecture |
Compared with SN74LVC1G126DBVR, the 74LVC1G126FW4-7 trades thermal margin for 75% smaller footprint and eliminates NC pin routing complexity; compared with 74LVC1G125FW4-7, it provides non-inverting signal integrity essential for transparent data path buffering without logic inversion side effects.
Availability
74LVC1G126FW4-7 is available at Aetrix Electronics and suitable for USB-C interface design, industrial I/O conditioning, and automotive sensor hub applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for 74LVC1G126FW4-7 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 manufacturing ISO/TS 16949-certified facilities.
The 74LVC logic family targets low-voltage, high-speed digital interfacing in space-constrained and mixed-supply systems-designed specifically for voltage translation, bus buffering, and power-aware signal isolation.
FAQ
Can 74LVC1G126FW4-7 operate reliably at 1.65V supply?
Yes. The device is fully characterized from 1.65V to 5.5V, with guaranteed tPD ≤ 8.0ns and VOL ≤ 0.45V at 1.65V/−40°C to +85°C. Input thresholds scale with VCC, ensuring correct logic interpretation across the full range.
What is the maximum capacitive load this buffer can drive?
At 3.3V, the buffer maintains ≤6ns tPD driving up to 30pF (per datasheet test condition). For loads exceeding 30pF, propagation delay increases linearly (~0.1ns/pF), and output rise/fall times degrade-layout optimization or local termination is recommended above 50pF.
Is the NC pin on X2-DFN1010-6 required to be grounded?
No. Pin 5 is internally unconnected and must remain floating or be left unmasked on the PCB. Grounding it may cause solder wicking or thermal stress during reflow; Diodes Incorporated's layout guide explicitly prohibits connection.
Does IOFF protect against reverse current when only VCC is disconnected but GND remains connected?
Yes. IOFF activates when VCC = 0V regardless of GND state. With GND connected and VCC open, the internal FETs are fully disabled, limiting reverse current to ≤200μA even if A or Y pins are pulled to 5V-verified per JESD78 Class I latch-up testing.
74LVC1G126FW4-7 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-DFN1010-6
74LVC1G126FW4-7 FAQ
1.How can I place an order for 74LVC1G126FW4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G126FW4-7 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 74LVC1G126FW4-7 reliable?
The price and inventory of 74LVC1G126FW4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G126FW4-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G126FW4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G126FW4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G126FW4-7?
74LVC1G126FW4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G126FW4-7 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 74LVC1G126FW4-7?
For technical support, including 74LVC1G126FW4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G126FW4-7 requirements.
6.How does Aetrix verify that 74LVC1G126FW4-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G126FW4-7 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 74LVC1G126FW4-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G126FW4-7?
All 74LVC1G126FW4-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G126FW4-7, 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 74LVC1G126FW4-7 part is unused and in its original packaging.
Return procedure for 74LVC1G126FW4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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