100 MHz Cortex-M4 — processing headroom for sensor-fusion and control loops
The NXP LPC54101J256BD64QL is a 32-bit ARM Cortex-M4 single-core MCU clocked at 100 MHz, with 256 KB Flash and 104 KB SRAM. That core speed puts it in the mid-range of the LPC54100 family — enough throughput for real-time sensor fusion, motor-control FOC loops, or protocol bridging without pushing the bus to its margin.
Industrial temperature grade — rated for the factory floor and outdoor enclosures
Supply range is 1.62 V to 3.6 V.
On-chip peripherals — brown-out detect, POR, WDT, and a 12-bit ADC
Built-in brown-out detect and power-on reset eliminate the need for an external supervisor IC in most designs. The watchdog timer keeps the system alive in unattended installations. A 12-channel 12-bit ADC handles analog inputs like thermistor chains or current-sense resistors without an external converter.
Connectivity — I²C, SPI, UART for sensor and actuator buses
Serial interfaces include I²C, SPI, and UART/USART.
That means NXP is still manufacturing it, no last-time-buy window is open, and the part is available through normal distribution.