Diodes Incorporated 74LVC1G07Z-7

Overview

74LVC1G07Z-7 from Diodes Incorporated is a single non-inverting buffer with open-drain output, designed for voltage-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 mode, delivers up to 32mA sink current at 4.5V, and features ESD protection exceeding 2kV HBM - used in notebook I/O expansion and peripheral interface control.

For engineers reviewing the 74LVC1G07Z-7 datasheet, 74LVC1G07Z-7 pinout, 74LVC1G07Z-7 application, or 74LVC1G07Z-7 equivalent, key selection criteria include open-drain drive capability, 5.5V-tolerant input compatibility, IOFF-enabled power-down safety, and SOT553 footprint suitability for space-constrained logic interfacing.

Technical Context

This device implements a CMOS-based single-buffer architecture with an open-drain output stage enabling wired-OR/AND logic functions. Its IOFF circuit actively disables output leakage during power-down, preventing backflow currents when VCC = 0V while inputs remain biased.

The input threshold is voltage-scalable (VIH = 0.65×VCC min at 1.65V; 0.7×VCC at 4.5–5.5V), and propagation delay ranges from 0.5ns (min) to 5.5ns (max) at 3.3V across –40°C to +125°C - ensuring timing predictability in industrial and portable applications.

Key Specifications

Pinout & Package

SOT553 is a 5-pin ultra-thin leadless package (1.6mm × 1.2mm × 0.5mm) with exposed pad thermal enhancement and moisture sensitivity level 1. Pin 1 is marked by a beveled corner; pins are arranged linearly with GND on pin 2 and VCC on pin 4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G07DBVR and 74LVC1G07FS3-7, the 74LVC1G07Z-7 balances compactness (SOT553), thermal performance (231°C/W), and layout flexibility (NC pin), making it optimal for portable electronics requiring robust level-shifting in tight spaces.

Availability

74LVC1G07Z-7 is available at Aetrix Electronics and suitable for USB peripheral interface, I²C level shifting, and LED indicator control requiring stable component supply across industrial, computing, and consumer design cycles.

Supply support for 74LVC1G07Z-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 solutions for power management, signal integrity, and protection.

The 74LVC logic family targets low-voltage, mixed-supply digital interfacing - designed specifically for voltage translation, bus isolation, and power-aware signal conditioning in portable and embedded systems.

FAQ

Can 74LVC1G07Z-7 drive an I²C bus directly?

Yes - its open-drain output and 5.5V-tolerant input allow direct connection to I²C SDA/SCL lines. With a 3.3V pull-up, it sinks up to 32mA, supporting bus capacitances ≤400pF at 400kHz. Ensure the input (A) is driven by a 1.65–5.5V logic source and that VCC matches the controller's supply.

What happens to the output when VCC = 0V?

When VCC drops to 0V, the IOFF circuit disables the output stage, limiting leakage current to ±10μA even if input (A) or output (Y) remains at 5.5V. This prevents back-current flow into unpowered circuitry - critical for hot-swap and partial-power-down safety.

Is the NC pin on SOT553 required to be grounded?

No - pin 5 is internally unconnected and may be left floating. However, grounding it improves mechanical stability during reflow and reduces potential antenna effects in high-frequency layouts; it does not affect electrical performance.

How does 74LVC1G07Z-7 differ from 74LVC1G07Q?

The 74LVC1G07Q is the automotive-grade variant qualified to AEC-Q100 Grade 2 (–40°C to +105°C), with PPAP documentation and IATF 16949 manufacturing. The 74LVC1G07Z-7 is for commercial/industrial use (–40°C to +125°C ambient), with identical electrical specs but no automotive change control or qualification reporting.