Nexperia USA Inc. 74LVC3G07DC,125

Overview

74LVC3G07DC,125 from Nexperia is a triple non-inverting buffer IC with open-drain outputs, designed for level translation and wired-logic interfacing in mixed-voltage systems. It operates from 1.65 V to 5.5 V, accepts 5 V-tolerant inputs, features Schmitt-trigger inputs for noise immunity, supports IOFF partial power-down, and is rated for −40 °C to +125 °C. It enables active-LOW wired-OR bus interfaces in I²C-compatible signal conditioning.

For engineers reviewing the 74LVC3G07DC,125 datasheet, 74LVC3G07DC,125 pinout, 74LVC3G07DC,125 application, or 74LVC3G07DC,125 equivalent, key selection criteria include open-drain drive capability (−24 mA at VCC = 3.0 V), input voltage tolerance up to 5.5 V, IOFF-enabled backflow prevention during power sequencing, and compatibility with both 3.3 V and 5 V logic domains in industrial control and sensor interface designs.

Technical Context

The device integrates three independent non-inverting buffers, each with an open-drain output stage enabling wired-logic functions. Its Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at VCC = 3.3 V), allowing robust operation with slow-rising signals such as those from mechanical switches or RC networks.

IOFF circuitry actively disables outputs when VCC = 0 V, limiting off-state leakage to ±2 μA and preventing current backflow into powered subsystems-critical for hot-swap and multi-rail power management. The logic function table confirms L→L and H→Z output behavior, with no internal pull-up.

Key Specifications

Pinout & Package

VSSOP8 package (SOT765-1): plastic very thin shrink small outline, 8 leads, body width 2.3 mm, lead pitch 0.5 mm, pin 1 index at lower-left corner below marking "V07".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G07DCUR and 74AUP3G07GW,125, the 74LVC3G07DC,125 uniquely balances wide voltage operation, −24 mA drive, full −40 °C to +125 °C qualification, and IOFF protection-making it the sole option for robust mixed-voltage industrial bus interfaces requiring guaranteed performance across full temperature and supply ranges.

Availability

74LVC3G07DC,125 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and IoT edge sensor nodes requiring stable component supply across extended temperature and mixed-voltage operating conditions.

Supply support for 74LVC3G07DC,125 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

Nexperia is a global semiconductor expert specializing in high-performance, energy-efficient logic, analog, and discrete components, with manufacturing rooted in process innovation and automotive-grade reliability.

The 74LVC3G07 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for interoperability across voltage domains and robustness in harsh industrial and automotive environments.

FAQ

Can 74LVC3G07DC,125 drive an I²C bus directly?

Yes. With external pull-up resistors (e.g., 2.2 kΩ to 3.3 V), its −24 mA sink capability at VCC = 3.0 V supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C timing, including rise time compliance under 400 pF bus capacitance. No additional level-shifting circuitry is needed.

What happens to outputs when VCC is disconnected?

IOFF circuitry activates, placing all three outputs in high-impedance state with leakage ≤±2 μA. This prevents back-current flow from powered I/O lines into the unpowered device, protecting both the 74LVC3G07DC,125 and connected circuitry during partial power-down sequences.

Is the Schmitt-trigger input threshold fixed or VCC-dependent?

Thresholds are VCC-dependent: VIH = 0.7×VCC (min) and VIL = 0.3×VCC (max) across the full 1.65–5.5 V supply range. Hysteresis width remains ~0.3 V at 3.3 V, ensuring consistent noise rejection regardless of nominal rail voltage.

Does 74LVC3G07DC,125 require external pull-up resistors on outputs?

Yes-absolutely. As an open-drain device, it can only sink current; external pull-up resistors define HIGH-level voltage and control rise time. Values from 1 kΩ (for speed-critical paths) to 10 kΩ (for low-power applications) are typical, selected based on bus capacitance and speed requirements.