The NXP LPC54113J256UK49Z is a 32-bit ARM Cortex-M4 single-core microcontroller from the LPC54100 series, running at 100 MHz with 256 KB of Flash and 192 KB of SRAM. It is designed for power-sensitive sensor-fusion, voice-command, and always-on IoT edge nodes that need a DSP-capable core without the overhead of a dual-core sibling. The 49-WLCSP package (3.44 x 3.44 mm) keeps board footprint minimal, suited for wearable, portable medical, and compact industrial sensor modules where every square millimeter counts.
Connectivity and peripherals for a sensor hub
The 12-channel 12-bit ADC captures analog sensor inputs (temperature, pressure, battery voltage) directly. Internal oscillator means no external crystal is required for UART or I²C at moderate baud rates, saving two BOM lines and board area.
Package and rework reality
The 49-WLCSP package has no peripheral leads — it is a direct-solder-bump array. This is not a hand-solderable part; it requires a solder-paste stencil and a reflow oven.