Diodes Incorporated 74LVC1G07FX4-7

Overview

74LVC1G07FX4-7 from Diodes Incorporated is a single CMOS buffer/driver IC with open-drain output, designed for level-shifting and signal isolation in mixed-voltage systems. It operates from 1.65V to 5.5V, tolerates 5.5V inputs, supports IOFF partial power-down, and delivers up to 32mA sink current at 4.5V - used in notebook I/O expansion and peripheral interface control.

For engineers reviewing the 74LVC1G07FX4-7 datasheet, 74LVC1G07FX4-7 pinout, 74LVC1G07FX4-7 application, or 74LVC1G07FX4-7 equivalent, key selection criteria include open-drain drive strength, 5.5V-tolerant input compatibility, IOFF leakage performance, and thermal resistance of the X2-DFN1409-6 package.

Technical Context

This device implements a non-inverting buffer with open-drain output topology, enabling wired-AND/wired-OR logic implementation when multiple outputs share a common pull-up. Its IOFF circuit actively disables output leakage during power-down, meeting JEDEC JESD78 latch-up (>100mA) and JESD22 ESD (2kV HBM, 1kV CDM) requirements.

The logic function is strictly A → Y (non-inverting), with propagation delay ranging from 0.5ns to 8.5ns across supply voltages (1.8V–5.0V) and temperature ranges (−40°C to +125°C). Input thresholds are V_IH = 0.65×V_CC (min) at low V_CC, scaling to 0.7×V_CC at 4.5–5.5V, ensuring robust TTL-level interfacing.

Key Specifications

Pinout & Package

X2-DFN1409-6 is a 0.4mm-pitch, 1.4mm × 0.9mm chip-scale package with exposed thermal pad (no solder mask defined), rated θ_JA = 470°C/W and θ_JC = 275°C/W on FR-4 board with minimum recommended pads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Compared with SN74LVC1G07DBVR and 74LVC1G07FW4-7, the 74LVC1G07FX4-7 provides the smallest footprint (1.4mm × 0.9mm) and highest integration density, making it optimal for space-limited designs where thermal load remains below 100mW - whereas DBVR suits thermally demanding uses and FW4-7 offers a rework-friendly compromise.

Availability

74LVC1G07FX4-7 is available at Aetrix Electronics and suitable for USB power control, display backlight management, and industrial sensor interface applications requiring stable component supply and long-term lifecycle support.

Supply support for 74LVC1G07FX4-7 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, with design centers across Asia, Europe, and the US.

The 74LVC logic family targets low-voltage, high-speed digital interface applications - specifically engineered for voltage translation, bus buffering, and power-aware I/O conditioning in portable and embedded systems.

FAQ

Can 74LVC1G07FX4-7 drive a 10kΩ pull-up resistor to 5V?

Yes. With 32mA maximum sink current and typical VOL < 0.55V at IOL = 32mA, the output voltage drop across a 10kΩ pull-up is negligible (< 0.33V at 5V), maintaining solid logic-low levels. The device's 5.5V input tolerance also permits direct connection to 5V logic families.

Is the X2-DFN1409-6 package lead-free and RoHS compliant?

Yes. The 74LVC1G07FX4-7 uses NiPdAu-plated terminals and is fully RoHS 3 compliant (2015/863/EU), halogen- and antimony-free ("Green"), with <900ppm Br, <900ppm Cl, and <1000ppm Sb compounds - verified per Diodes Incorporated's quality definitions.

What is the minimum recommended pull-up resistor value for reliable 3.3V operation?

At V_CC = 3.3V and I_OL = 24mA, the datasheet specifies VOL ≤ 0.55V. To maintain VOL < 0.4V (ensuring >0.9V noise margin for 3.3V CMOS), the maximum allowable pull-up is R_PULLUP ≤ (3.3V − 0.4V)/24mA ≈ 121Ω. Practical designs use 1kΩ–10kΩ for speed/noise trade-offs.

Does IOFF function activate automatically when V_CC drops below threshold?

Yes. IOFF is an intrinsic circuit feature that engages when V_CC falls near 0V - no external control signal required. Measured IOFF leakage is ±10μA max at VI or VO = 5.5V and V_CC = 0V, effectively blocking reverse current flow during power sequencing or brown-out conditions.