Nexperia USA Inc. 74LVC2G38GF,115

Overview

74LVC2G38GF,115 from Nexperia is a dual 2-input NAND gate with open-drain outputs, designed for level translation between 3.3 V and 5 V logic domains. It features Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and operates across 1.65 V to 5.5 V supply range. Used in I²C bus pull-up control, wired-AND logic, and mixed-voltage interface circuits.

For engineers reviewing the 74LVC2G38GF,115 datasheet, 74LVC2G38GF,115 pinout, 74LVC2G38GF,115 application, or 74LVC2G38GF,115 equivalent, key selection criteria include open-drain drive capability (±24 mA at 3.0 V), input overvoltage tolerance to 5.5 V, IOFF-enabled power sequencing, and −40 °C to +125 °C operation in XSON8 (SOT1089) package.

Technical Context

This device implements two independent NAND gates with open-drain outputs, enabling wired-logic configurations and bidirectional voltage translation. Each gate accepts inputs up to 5.5 V regardless of VCC, supporting interoperability between 3.3 V and 5 V systems without external components.

The IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0 V. Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at 3.3 V), accommodating slow-rising signals common in sensor interfaces and legacy bus lines.

Key Specifications

Pinout & Package

XSON8 package (SOT1089): plastic extremely thin small outline, no leads, 8 terminals, body size 1.0 × 1.45 × 0.5 mm, wettable flank design for AOI inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual NAND gate applications.

Compared with SN74LVC2G38DBVR, the 74LVC2G38GF,115 offers 25 % lower thermal resistance and 40 % smaller footprint, critical for dense power management PCBs. Versus 74AUP2G38GM,115, it trades ultra-low quiescent current for essential 5 V input tolerance-enabling direct connection to legacy industrial controllers.

Availability

74LVC2G38GF,115 is available at Aetrix Electronics and suitable for industrial automation interfaces, automotive body control modules, and telecom infrastructure requiring stable component supply across extended temperature ranges.

Supply support for 74LVC2G38GF,115 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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.

The 74LVC2G38 belongs to Nexperia's LVC logic family, engineered for low-voltage mixed-signal interfacing in space-constrained, thermally demanding applications such as automotive ADAS domain controllers and 5G baseband modules.

FAQ

Can 74LVC2G38GF,115 drive an I²C bus directly?

Yes - its open-drain outputs support standard I²C bus topology when paired with appropriate pull-up resistors (e.g., 2.2 kΩ to 3.3 V or 4.7 kΩ to 5 V). Propagation delay remains below 3 ns across 1.65–5.5 V, preserving timing margins for 400 kHz and 1 MHz modes. Ensure total bus capacitance stays ≤400 pF for reliable operation.

What happens to outputs during power-down?

When VCC drops to 0 V, the IOFF circuit forces both 1Y and 2Y outputs into high-impedance state, limiting backflow current to ±2 μA maximum. This prevents damage to upstream drivers or unintended activation of downstream loads during hot-swap events or staged power sequencing in multi-rail systems.

Is the 74LVC2G38GF,115 pin-compatible with other 74LVC2Gxx devices in XSON8?

No - while sharing the SOT1089 (XSON8) footprint, pin assignments differ across the 74LVC2Gxx series. For example, 74LVC2G00 uses pin 1=1A, pin 2=1B, pin 3=1Y, whereas 74LVC2G38 assigns pin 1=1A, pin 2=1B, pin 3=2Y. Always verify pin mapping using Table 3 in the datasheet before PCB layout.

Does this device support 1.8 V operation with guaranteed timing?

Yes - the datasheet specifies full functionality at VCC = 1.65 V minimum, including propagation delay (max 10.8 ns at −40 °C to +85 °C) and VOL (≤0.45 V at 4 mA load). At 1.8 V, typical t_PD is 2.5 ns, making it suitable for low-power microcontroller GPIO expansion where speed >10 MHz is not required.