PSoC 4 MCU with integrated CapSense — 48 MHz Cortex-M0+ in a 48-QFN
CapSense and mixed-signal converters — what the analog chain handles
The 16-channel 10-bit slope ADC is adequate for slow sensor reads (thermistors, potentiometers) where noise averaging is acceptable. The 8-channel 12-bit SAR ADC gives better resolution for faster signals — current sensing or battery voltage monitoring. Two IDAC outputs drive external sensor excitation or generate analog reference currents. The CapSense block supports up to 38 capacitive touch channels using the internal CSD algorithm, with no external charge-conversion IC needed.
It is RoHS3 compliant. If you need a pin-compatible second source for dual-sourcing, the PSoC 4 family includes several 48-QFN variants with the same footprint — qualify the specific Flash/RAM and peripheral set against your firmware image.