NXP Semiconductors 74LVC1G38GM,115

Overview

74LVC1G38GM,115 from Nexperia is a single 2-input NAND gate with open-drain output, 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. Used in I²C bus pull-up control, mixed-voltage interface buffering, and reset signal conditioning.

For engineers reviewing the 74LVC1G38GM,115 datasheet, 74LVC1G38GM,115 pinout, 74LVC1G38GM,115 application, or 74LVC1G38GM,115 equivalent, this device delivers verified open-drain drive (±24 mA at 3.0 V), wide temperature range (–40 °C to +125 °C), JEDEC-compliant ESD robustness (HBM >2000 V), and precise VIH/VIL thresholds enabling reliable operation in noisy industrial and automotive-adjacent systems.

Technical Context

This logic gate implements standard NAND Boolean function (Y = NOT(A AND B)) with open-drain output requiring external pull-up. Its Schmitt-trigger inputs accept slow-rising signals and tolerate input voltages up to 5.5 V regardless of VCC, supporting bidirectional voltage translation.

The IOFF circuit actively disables output leakage when VCC = 0 V, preventing back-current in hot-swap or partial-power-down systems. Propagation delay ranges from 0.5 ns (VCC = 5.5 V) to 12.5 ns (VCC = 1.65 V, –40 °C to +85 °C), with CPD = 6 pF confirming low dynamic power consumption.

Key Specifications

Pinout & Package

XSON6 package (SOT886): plastic extremely thin small outline, no leads, 6 terminals, body size 1.0 × 1.45 × 0.5 mm, thermal pad not present, side-wettable flanks absent.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input NAND gate applications.

Compared with 74LVC1G00GM,115, the 74LVC1G38GM,115 provides essential open-drain flexibility for bus systems; versus SN74LVC1G38DBVR, it offers 30% smaller area and improved thermal performance in high-density PCBs.

Availability

74LVC1G38GM,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, I²C bus isolation, and power sequencing control requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74LVC1G38GM,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 focused on high-volume, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74LVC1G38 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interoperability, low static/dynamic power, and industrial-grade reliability in space-constrained applications.

FAQ

Can 74LVC1G38GM,115 drive an I²C bus directly?

Yes - its open-drain output and 5 V-tolerant inputs allow direct connection to I²C buses operating at 1.8 V, 3.3 V, or 5 V. With appropriate external pull-up (e.g., 2.2 kΩ to VCC), it meets I²C standard-mode timing (≤400 kHz) and fast-mode requirements (≤1 MHz) across its full voltage and temperature range.

What is the maximum sink current capability at 1.8 V supply?

At VCC = 1.8 V and Tamb = 25 °C, the device guarantees VOL ≤ 0.45 V at IO = 4 mA (per Table 7). This confirms usable sink strength for low-voltage logic interfaces, though peak drive drops versus 3.0 V operation (±24 mA). Derating curves in the datasheet confirm stability down to 1.65 V.

Does the n.c. pin on SOT886 require PCB routing or grounding?

No - pin 5 is unconnected internally and must remain un-routed on the PCB. Per Nexperia's layout guidance, it may be left floating or optionally tied to GND for mechanical stability; neither choice affects electrical performance. Avoid connecting to any active net.

How does IOFF protect during hot-swap events?

When VCC = 0 V, the IOFF circuit disables the output FET, limiting leakage to ±2 μA (max) even if Y or inputs are biased to 5.5 V. This prevents reverse current flow that could damage upstream regulators or cause latch-up in adjacent powered ICs - validated per JEDEC JESD78 latch-up test conditions.