ARM Cortex-M0 at 50 MHz — what the core speed means for the bus
The LPC11U24FHI33/301Y: Runs the ARM Cortex-M0 at 50 MHz. The 32 KB Flash and 8 KB RAM support USB and UART peripherals.
Memory map: 32 KB Flash, 8 KB RAM, 2 KB EEPROM
The 32 KB Flash (32 K x 8) is the program store; the 8 KB RAM (8 K x 8) is the data scratchpad; the 2 KB EEPROM (2 K x 8) is for non-volatile parameter storage — calibration constants, serial numbers, or last-state flags. The EEPROM is separate from the Flash, so you can write parameters without wearing the program memory. For a USB HID-class device or a simple UART-to-USB bridge, this memory split works. If the firmware needs a full USB CDC-ACM stack plus a Modbus RTU slave, the 32 KB Flash fills up quickly — budget carefully.