Diodes Incorporated 74LVC1G07FZ4-7

Overview

74LVC1G07FZ4-7 from Diodes Incorporated is a single non-inverting buffer with open-drain output, designed for voltage-level shifting and mixed-voltage signal interfacing in 1.65V–5.5V systems. It supports IOFF partial power-down protection, tolerates 5.5V inputs, delivers 32mA sink current at 4.5V, and operates across –40°C to +125°C ambient temperature-commonly used in notebook I/O expansion and USB peripheral control logic.

For engineers reviewing the 74LVC1G07FZ4-7 datasheet, 74LVC1G07FZ4-7 pinout, 74LVC1G07FZ4-7 application, or 74LVC1G07FZ4-7 equivalent, key selection criteria include open-drain drive capability, 5.5V-tolerant input compatibility, IOFF-enabled power-down isolation, and thermal performance in X2-DFN1410-6 package.

Technical Context

This device implements a CMOS-based single-buffer architecture with no internal pull-up; output remains high-impedance unless actively pulled low by external circuitry. Its IOFF circuit disables both output and input paths during VCC = 0V, preventing back-current flow in partial-power-down systems.

The open-drain topology enables wired-AND logic and level translation between disparate supply domains (e.g., 1.8V logic driving 3.3V bus). Propagation delay ranges from 0.5ns (min) to 8.5ns (max) across 1.8V–5.0V VCC, with input transition rate support up to 20 ns/V at 1.8V.

Key Specifications

Pinout & Package

X2-DFN1410-6 is a 1.4mm × 1.0mm, 0.4mm pitch, 6-terminal chip-scale package with exposed thermal pad. Pin 1 (A) is marked by chamfered corner; pins 2 (GND), 3 (VCC), 4 (Y), 5 (NC), and 6 (NC) follow clockwise layout. NC pins are unconnected and must remain floating or grounded per layout guidelines.

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 74LVC1G07FZ4-7 provides highest sink current (32mA) in the smallest X2-DFN footprint with optimized thermal pad layout for sustained 32mA operation-making it ideal for compact, thermally demanding applications like portable SSD controllers.

Availability

74LVC1G07FZ4-7 is available at Aetrix Electronics and suitable for USB peripheral control, microcontroller I/O expansion, LED indicator driving, and hot-swappable module detection requiring stable component supply across industrial, computing, and consumer electronics programs.

Supply support for 74LVC1G07FZ4-7 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, low-power solutions for industrial, computing, and consumer markets.

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

FAQ

Can 74LVC1G07FZ4-7 drive a 5V pull-up resistor while powered from 1.8V?

Yes. Its 5.5V-tolerant input and open-drain output allow the Y pin to sink current from a 5V pull-up while VCC = 1.8V. The output low voltage remains ≤0.45V at 4mA sink, ensuring valid logic-low recognition by 5V receivers. No level-shifter IC is required.

What is the recommended external pull-up resistor value for Y when sinking 24mA at 3.3V?

For 24mA sink at 3.3V with VOL ≤0.4V, use a 120Ω pull-up to 3.3V (3.3V − 0.4V)/24mA ≈ 121Ω). This ensures reliable low-state voltage margin while limiting power dissipation to <80mW in the resistor under continuous conduction.

Does the IOFF feature require any external control signal or configuration?

No. IOFF activates automatically when VCC drops below ~0.8V; no enable pin or register setting is needed. The input and output terminals enter high-impedance state passively, blocking current flow in both directions without firmware intervention or external circuitry.

Is the X2-DFN1410-6 package compatible with standard reflow profiles for lead-free soldering?

Yes. With Moisture Sensitivity Level 1 per J-STD-020 and NiPdAu terminal finish, it supports standard IPC/JEDEC J-STD-020D reflow profiles-including peak temperatures up to 260°C for 30 seconds-and does not require baking prior to assembly.