NXP Semiconductors 74LVC3G07GM,125

Overview

74LVC3G07GM,125 from Nexperia is a triple non-inverting buffer IC with open-drain outputs, designed for level translation and wired-OR/AND logic 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, and supports IOFF partial power-down protection. It is used in I²C bus buffering, LED sink drivers, and voltage-level interface circuits.

For engineers reviewing the 74LVC3G07GM,125 datasheet, 74LVC3G07GM,125 pinout, 74LVC3G07GM,125 application, or 74LVC3G07GM,125 equivalent, key selection criteria include open-drain drive capability (–24 mA at 3.0 V), wide supply range (1.65–5.5 V), 5 V input tolerance, Schmitt-trigger hysteresis, and IOFF-enabled power-down isolation.

Technical Context

The device integrates three independent non-inverting buffers, each with an open-drain output stage enabling wired-logic configurations. Its Schmitt-trigger inputs provide ≥0.35 V hysteresis at VCC = 3.3 V, ensuring robust operation with slow-rising signals.

IOFF circuitry actively disables outputs when VCC = 0 V, blocking backflow current up to ±2 μA. The logic function table confirms L→L and H→Z output behavior, supporting active-LOW wired-OR and active-HIGH wired-AND topologies without external pull-ups required for logic evaluation.

Key Specifications

Pinout & Package

XQFN8 (SOT902-2) package: 1.5 mm × 1.5 mm × 0.55 mm body, 0.4 mm pitch, no leads, wettable flank terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G07DCUR, the 74LVC3G07GM,125 saves >40% board area in XQFN8; versus 74AUP3G07GM,125, it retains full 5 V compatibility at the cost of slightly higher static current - making it the sole choice for robust mixed-voltage signal conditioning.

Availability

74LVC3G07GM,125 is available at Aetrix Electronics and suitable for I²C bus translation, LED sink driving, hot-swap interface isolation, and reset signal conditioning requiring stable component supply across industrial temperature ranges.

Supply support for 74LVC3G07GM,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 focused on high-volume, high-reliability logic, analog, and discrete components for industrial, automotive, and consumer applications.

The 74LVC3G07 belongs to Nexperia's LVC logic family, engineered for low-voltage operation with 5 V tolerance and robust ESD performance - specifically targeting space-constrained, mixed-supply digital interface challenges.

FAQ

Can 74LVC3G07GM,125 drive an I²C bus directly?

Yes. Its open-drain outputs comply with I²C electrical specifications when paired with appropriate pull-up resistors (typically 2.2 kΩ to 3.3 kΩ). With propagation delay <5 ns and 5 V-tolerant inputs, it supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C without timing violations or level-shifting components.

What is the maximum sink current per output at 1.8 V supply?

At VCC = 1.8 V, the typical sink current is –8 mA (min –4 mA) with VOL ≤ 0.45 V. This is confirmed in Table 7 of the datasheet under "VOL LOW-level output voltage" for VCC = 1.65 V to 1.95 V and IO = 4 mA condition. Derating applies above ambient 85 °C.

Does the 74LVC3G07GM,125 require external pull-up resistors on its outputs?

Yes. As an open-drain device, each output (1Y, 2Y, 3Y) must be pulled up externally to a valid logic HIGH voltage - either to VCC or to another supply rail (e.g., 5 V for level translation). No internal pull-ups exist; omission results in undefined HIGH state and logic failure.

How does IOFF protect the device during partial power-down?

When VCC = 0 V, the IOFF circuit disables all three output buffers and limits leakage to ±2 μA, preventing reverse current flow from powered downstream circuits (e.g., 5 V pull-ups) into the unpowered IC. This avoids latch-up, overheating, or corruption of other system rails during controlled power sequencing.