The LPC811M001FDH16FP: 32-bit ARM Cortex-M0+ MCU from the LPC81xM series, clocked at 30 MHz with 8 KB Flash and 2 KB RAM. It has 14 I/O, I²C/SPI/UART connectivity, and an internal oscillator in a 16-TSSOP package.
30 MHz Cortex-M0+ — what it means for fit
At 30 MHz, this core handles basic sensor polling, serial communication, and PWM generation without breaking a sweat. It is not a part for heavy DSP or high-throughput data logging — the 2 KB RAM limits buffering. Where the BOM calls for a small, low-power controller in a 16-pin TSSOP, this MCU fits. The internal oscillator saves an external crystal, freeing up I/O for other functions.
Memory and peripherals
8 KB Flash and 2 KB RAM are sized for a single control loop, a Modbus RTU slave, or a simple user-interface handler. The 14 I/O lines are the total package count; plan the pin allocation before layout.