Diodes Incorporated 74LVC2G07DW-7

Overview

74LVC2G07DW-7 from Diodes Incorporated is a dual buffer IC with open-drain outputs, designed for voltage-level shifting and signal isolation in mixed-voltage systems. It operates from 1.65V to 5.5V, tolerates 5.5V inputs, delivers up to 32mA sink current per output, and supports partial power-down via IOFF. It is used in notebook I/O expansion, SSD power sequencing, and USB peripheral interface logic.

For engineers reviewing the 74LVC2G07DW-7 datasheet, 74LVC2G07DW-7 pinout, 74LVC2G07DW-7 application, or 74LVC2G07DW-7 equivalent, key selection criteria include open-drain drive strength at 3.3V, IOFF leakage under 0V VCC, input voltage tolerance, thermal resistance in SOT363, and compatibility with 0.65mm-pitch PCB layouts.

Technical Context

The device implements two independent non-inverting buffers, each with an open-drain output stage enabling wired-OR logic and level translation across voltage domains. Its IOFF circuit actively disables both outputs when VCC = 0V, limiting back-current to ±20μA.

Input thresholds scale with VCC (e.g., VIH ≥ 0.7×VCC at 4.5–5.5V), while propagation delay remains ≤3.7ns at 3.3V (CL = 30pF, TA ≤ +85°C). The SOT363 package provides 371°C/W junction-to-ambient thermal resistance under standard FR-4 mounting.

Key Specifications

Pinout & Package

SOT363 (6-pin, 2.0mm × 2.0mm × 1.1mm, 0.65mm lead pitch) - surface-mount package with exposed pad option; compatible with standard reflow profiles and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G07DBVR, the 74LVC2G07DW-7 trades thermal efficiency for space savings in dense layouts; compared with 74AUP2G07GW, it sacrifices standby current for broader voltage interoperability and higher sink capability-making it optimal for mixed-rail embedded interfaces.

Availability

74LVC2G07DW-7 is available at Aetrix Electronics and suitable for USB peripheral interface design, SSD power sequencing, and notebook keyboard backlight control requiring stable component supply across automotive infotainment, industrial HMI, and consumer portable platforms.

Supply support for 74LVC2G07DW-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 ICs for power management, signal integrity, and connectivity applications.

The 74LVC logic family targets high-speed, low-voltage general-purpose digital interfacing-designed specifically for robust operation in mixed-supply systems with stringent ESD and partial-power-down requirements.

FAQ

Can 74LVC2G07DW-7 drive a 5V pull-up resistor directly?

Yes-the device's 5.5V-tolerant inputs and open-drain outputs allow direct connection to 5V pull-ups. When sinking current, VOL remains ≤0.4V at 8mA (VCC = 2.3V) and ≤0.55V at 32mA (VCC = 4.5V), ensuring clean logic-low assertion across the full supply range.

What is the minimum recommended pull-up resistor value for 1Y/2Y at 3.3V?

For guaranteed VOL ≤0.4V at 24mA sink (per output), the minimum pull-up is RPU ≥ (3.3V − 0.4V)/0.024A = 121Ω. In practice, 1kΩ is typical for I²C; 470Ω balances speed and power for LED drive. Always verify with actual load capacitance and rise-time targets.

Does IOFF protect against backfeed when only one supply rail is active?

Yes-IOFF activates when VCC is near 0V (tested down to 0V), disabling both outputs and limiting reverse current to ±20μA even if 5.5V signals are applied to 1A/2A inputs. This protects powered-down sections in multi-rail FPGAs or SoCs during partial reconfiguration.

Is the SOT363 package RoHS-compliant and halogen-free?

Yes-74LVC2G07DW-7 uses fully lead-free terminations and meets EU RoHS 2011/65/EU requirements. It is also halogen- and antimony-free ("Green" per Diodes Inc. definition), containing <900ppm bromine, <900ppm chlorine, and <1000ppm antimony compounds.