What the 48 MHz Cortex-M0 core and on-chip peripherals mean for your BOM
The CY8C4245PVI-482 is an active-production ARM Cortex-M0 MCU from Infineon's PSoC 4 CY8C42xx family, clocked at 48 MHz with 32 KB flash and 4 KB RAM. That core speed and memory budget suit control loops, sensor fusion, and HMI tasks where a full Cortex-M4 would be overkill. What sets this part apart is the integrated analog and digital fabric: CapSense for touch-sensing, a segment LCD drive controller, a 12-bit SAR ADC with eight channels, and two IDAC outputs. The industrial temperature grade (-40°C to 85°C) covers most factory-floor, outdoor telecom, and automotive cabin environments.
Package, I/O, and board-fit considerations
With 24 general-purpose I/O available, you get enough pins for a 4×4 keypad matrix, a few LEDs, and a serial interface — but not enough for a parallel bus or a large TFT display.
