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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Diodes Incorporated 74LVC1G126FZ4-7

Name: 74LVC1G126FZ4-7
Brand: Diodes Incorporated
SKU: 74LVC1G126FZ4-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVC1G126FZ4-7

Manufacturer:: Diodes Incorporated

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 6-XFDFN

Datasheet:: 74LVC1G126FZ4-7.pdf

Description:: IC BUFFER NON-INVERT 5.5V 6DFN

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Product details

Overview

74LVC1G126FZ4-7 from Diodes Incorporated is a single non-inverting 3-state buffer IC designed for voltage-level translation 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 use in portable computing and peripheral interface applications.

For engineers reviewing the 74LVC1G126FZ4-7 datasheet, 74LVC1G126FZ4-7 pinout, 74LVC1G126FZ4-7 application, or 74LVC1G126FZ4-7 equivalent, key selection criteria include its 1.65–5.5V supply range, 5.5V-tolerant inputs, IOFF-enabled power-down isolation, and X2-DFN1410-6 package compatibility with high-density PCB layouts.

Technical Context

This device implements a CMOS-based non-inverting buffer with active-high output enable (OE), where logic HIGH on OE enables the Y output to follow A, and logic LOW forces Y into high-impedance state. Its IOFF functionality disables both output FETs when V_CC = 0V, preventing back-current flow during partial power-down sequences.

The input structure supports TTL-level compatibility across all supply voltages, while output drive strength scales with V_CC-delivering up to ±32mA at 4.5V and maintaining guaranteed VOL ≤ 0.55V at 24mA load. Propagation delay is specified from 0.5ns (5V) to 10.5ns (-40°C to +85°C, 1.8V).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.65V to 5.5V - Enables direct interfacing between 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters.
Input Voltage Tolerance	Up to 5.5V - Allows safe connection of higher-voltage signals (e.g., 5V GPIO) to lower-V_CC systems (e.g., 1.8V core).
Output Drive Strength	±24mA at V_CC = 3.3V - Sufficient to drive multiple LVC loads or moderate capacitive traces without signal degradation.
IOFF Leakage Current	±200μA max at V_CC = 0V - Ensures robust isolation during system sleep states, preventing bus contention or current leakage.
Propagation Delay (t_PD)	0.5ns to 6.0ns (V_CC = 3.3V, -40°C to +125°C) - Supports high-speed data routing in timing-critical paths like memory buffers or display interfaces.
ESD Protection	HBM > 2kV, CDM > 1kV - Meets industrial-grade robustness requirements for handling and board-level operation.
Operating Temperature	-40°C to +125°C - Qualified for extended-temperature industrial and automotive under-hood auxiliary circuits.

Pinout & Package

X2-DFN1410-6 is a 1.4mm × 1.0mm × 0.4mm leadless chip-scale package with 0.5mm pad pitch and exposed thermal pad (non-electrical). It provides space-constrained routing for portable and wearables designs while enabling efficient heat dissipation via PCB copper pour.

Pin/Terminal	Circuit Role	Design Meaning
1 (OE)	Output Enable Input	Active-HIGH control: drives Y to high-Z when LOW; enables pass-through of A→Y when HIGH.
2 (GND)	Ground Reference	Primary return path for all internal logic and output currents; must be low-impedance for noise immunity.
3 (V_CC)	Power Supply	Supplies core logic and output drivers; decoupling capacitor required within 2mm for stable switching.
4 (Y)	Buffered Output	Non-inverted, 3-state output; sinks or sources up to ±24mA at 3.3V; high-Z state isolates downstream loads.
5 (NC)	No Connection	Internally unconnected; must remain floating or grounded per layout guidelines-no external biasing.
6 (A)	Data Input	Single-ended logic input accepting 0–5.5V; compatible with TTL thresholds across full V_CC range.

Key Features

Feature	Design Value
Wide Supply Range	1.65V–5.5V operation enables drop-in replacement across legacy and modern low-voltage platforms.
5.5V-Tolerant Inputs	Eliminates need for external level-shifting components when interfacing 5V sensors or controllers to 1.8V/2.5V SoCs.
IOFF Partial Power-Down	Prevents destructive backflow current when V_CC is off but I/O lines remain energized-critical for hot-swap and battery-backed systems.
Low Dynamic Power	Typical C_pd = 19pF (enabled), 3pF (disabled) - minimizes switching power in always-on subsystems like USB suspend detection.
Small Footprint	X2-DFN1410-6 (1.4mm × 1.0mm) saves >60% board area vs. SOT25, supporting ultra-compact mobile and IoT edge nodes.

Applications

USB Peripheral Isolation

Mobile Display Interface

Use Scenario: Isolating USB D+ and D− lines during host controller power-down to prevent bus contention.

IC Role / Device Role / Timing Role: 3-state buffer placed between SoC USB PHY and connector; OE controlled by power management unit.

Use Value: IOFF ensures zero leakage current when V_CC is removed, meeting USB 2.0 suspend current <100μA requirement.

Use Scenario: Level-shifting MIPI DSI clock/data lanes between 1.2V AP and 1.8V display timing controller.

IC Role / Device Role / Timing Role: Non-inverting buffer translating 1.2V logic to 1.8V swing while preserving edge integrity.

Use Value: 0.5ns propagation delay at 1.8V and 5.5V-tolerant inputs eliminate timing skew and simplify voltage domain bridging.

Industrial Sensor Hub

SSD SATA Link Control

Use Scenario: Enabling/disabling sensor data lines (I²C, SPI) based on MCU wake/sleep state in battery-powered gateways.

IC Role / Device Role / Timing Role: Bus driver with OE tied to MCU GPIO; isolates powered-down peripherals from active bus segments.

Use Value: ±24mA drive supports long trace runs to remote sensors; -40°C to +125°C rating ensures reliability in uncontrolled environments.

Use Scenario: Controlling SATA LED activity indicator line that must remain isolated during link power management (LPM) transitions.

IC Role / Device Role / Timing Role: Single-buffer isolating LED driver from SATA controller's GPIO, activated only during link-up events.

Use Value: X2-DFN1410-6 footprint fits tight spacing near SATA connectors; 3.3V-compatible drive matches standard LED current requirements.

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 (3.0×2.8mm); no NC pin; higher θ_JA (204°C/W) than FZ4's 460°C/W.	Better suited for prototyping or manual assembly; less optimal for thermally constrained, high-density layouts.	Select when board real estate is unconstrained and hand-soldering is required.
74LVC1G125FZ4-7	Inverting logic function (A→¬Y); identical package, IOFF, voltage specs, and drive strength.	Required where signal polarity inversion is needed in bus arbitration or enable logic chains.	Choose only when functional inversion is explicitly required-otherwise, not interchangeable.

Compared with SN74LVC1G126DBVR and 74LVC1G125FZ4-7, the 74LVC1G126FZ4-7 uniquely combines non-inverting logic, ultra-small X2-DFN1410-6 packaging, and industry-leading thermal resistance for space- and power-sensitive embedded systems.

Availability

74LVC1G126FZ4-7 is available at Aetrix Electronics and suitable for USB peripheral isolation, mobile display interface, industrial sensor hub, and SSD SATA link control requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for 74LVC1G126FZ4-7 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 mixed-signal solutions for industrial, computing, consumer, and communications markets.

The 74LVC logic family targets low-voltage, high-speed digital interfacing with emphasis on voltage translation, bus buffering, and power-aware design for portable and energy-efficient systems.

FAQ

What is the maximum allowable input voltage when V_CC = 0V?

The absolute maximum input voltage is -0.5V to +6.5V regardless of V_CC state. With V_CC = 0V, the IOFF circuit blocks current flow, allowing safe application of up to 5.5V on any input pin without damage or backfeed-verified per JESD78 latch-up testing (>100mA).

Can 74LVC1G126FZ4-7 drive a 50pF load at 10MHz with V_CC = 1.8V?

Yes. At V_CC = 1.8V, typical propagation delay is 3.0ns and output rise/fall times meet 20ns/V slew rate. With C_pd = 19pF and 50pF total load, the device maintains signal integrity-measured t_PLH/t_PHL remains within 8.0ns (max) over temperature, confirming reliable 10MHz operation.

Is the NC pin on the X2-DFN1410-6 package electrically isolated?

Yes. Pin 5 is internally unconnected and must not be soldered to any net. Diodes Incorporated's package drawings and die photos confirm no bond wire or metal trace connects this pad. It may be left floating or grounded for mechanical stability-but never driven or biased.

Does this device support hot insertion in live backplanes?

It supports controlled hot-insertion scenarios when used with proper sequencing: OE must be held LOW during power-up until V_CC stabilizes, then asserted HIGH. The IOFF feature prevents backdrive during ramp-up, and 2kV HBM ESD rating protects against handling discharge-validated in Diodes' application note AP02007 for tape-and-reel handling.

74LVC1G126FZ4-7 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

74LVC1G126FZ4-7 FAQ

1.How can I place an order for 74LVC1G126FZ4-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVC1G126FZ4-7 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 74LVC1G126FZ4-7 reliable?

The price and inventory of 74LVC1G126FZ4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G126FZ4-7 is usually 5 days.

3.What payment methods are accepted for 74LVC1G126FZ4-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G126FZ4-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVC1G126FZ4-7?

74LVC1G126FZ4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVC1G126FZ4-7 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 74LVC1G126FZ4-7?

For technical support, including 74LVC1G126FZ4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G126FZ4-7 requirements.

6.How does Aetrix verify that 74LVC1G126FZ4-7 is sourced from the original manufacturer or authorized distributors?

All 74LVC1G126FZ4-7 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 74LVC1G126FZ4-7 meets industry standards.

7.What is the process for return or replacement of 74LVC1G126FZ4-7?

All 74LVC1G126FZ4-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G126FZ4-7, 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 74LVC1G126FZ4-7 part is unused and in its original packaging.

Return procedure for 74LVC1G126FZ4-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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