Diodes Incorporated 74LVC1G06W5-7

Overview

74LVC1G06W5-7 from Diodes Incorporated is a single-channel CMOS inverter buffer with open-drain output, designed for level-shifting and signal isolation in mixed-voltage systems. It operates from 1.65V to 5.5V, accepts 5.5V-tolerant inputs, supports IOFF partial power-down mode, and delivers up to 32mA sink current at 4.5V - enabling wired-OR logic in I²C, SMBus, and GPIO expansion applications.

For engineers reviewing the 74LVC1G06W5-7 datasheet, 74LVC1G06W5-7 pinout, 74LVC1G06W5-7 application, or 74LVC1G06W5-7 equivalent, key selection criteria include open-drain drive strength, 5.5V input tolerance, IOFF leakage performance, supply voltage flexibility, and SOT25 package thermal resistance (θJA = 204°C/W).

Technical Context

This device implements a single inverting logic gate with an open-drain NMOS output stage, requiring an external pull-up resistor to define high-level voltage and logic polarity. Its IOFF circuit actively disables both output and input paths during VCC = 0V, limiting backflow current to ±200μA across –40°C to +125°C.

The propagation delay ranges from 0.5ns (typ) at 5.0V to 6.5ns (max) at 1.8V, with input transition rate support up to 20 ns/V at 1.8V. Input thresholds scale with VCC (e.g., VIH = 0.7×VCC at 4.5–5.5V), ensuring robust noise margin across all operating voltages.

Key Specifications

Pinout & Package

SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) - compact 5-pin SC-74A package with exposed pad option; optimized for automated placement and thermal dissipation in space-constrained PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G06DBVR and 74AUP1G06GW,125, the 74LVC1G06W5-7 uniquely combines 5.5V input tolerance, 32mA sink capability, and validated IOFF - making it the only choice for mixed-voltage hot-swap and level-shifting applications demanding robust power sequencing.

Availability

74LVC1G06W5-7 is available at Aetrix Electronics and suitable for I²C bus design, GPIO expansion, and hot-plug detection requiring stable component supply, consistent parametric performance across temperature, and long-term lifecycle availability.

Supply support for 74LVC1G06W5-7 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.

The 74LVC logic family targets low-voltage, mixed-supply digital interfacing - engineered for interoperability across 1.65–5.5V domains with emphasis on ESD robustness, power-down safety, and package scalability.

FAQ

What is the maximum allowable sink current for continuous operation?

The 74LVC1G06W5-7 supports up to 32mA DC sink current at VCC = 4.5V, with VOL ≤ 0.55V. At 3.3V, it delivers 24mA with VOL ≤ 0.55V. Exceeding these values risks exceeding absolute maximum ratings and may cause thermal shutdown or permanent damage.

Can this device be used without an external pull-up resistor?

No - the open-drain output requires an external pull-up resistor to establish a valid high logic level. The value depends on bus capacitance and speed requirements; typical values range from 1kΩ (for fast, low-capacitance lines) to 10kΩ (for I²C-standard 400kHz operation).

Does the NC pin require any PCB layout treatment?

Yes - Pin 4 (NC) is internally unconnected and must remain electrically floating. Do not route traces to it or connect it to GND/VCC. Maintain ≥0.2mm clearance from adjacent copper to prevent parasitic coupling or solder bridging during reflow.

How does IOFF behave during power sequencing when VCC ramps slowly?

IOFF activates when VCC drops below ~0.8V and remains active until VCC exceeds ~1.2V. During slow ramp-up, the device stays in high-impedance state until VCC stabilizes - preventing glitch-induced back-current into partially powered subsystems.