CapSense PSoC controller integrates a 24 MHz M8C CPU core with SmartSense auto-tuning for capacitive sensing applications. The device family supports 10 CapSense sensors, 13 digital I/O pins, 13 analog inputs, 16 KB of flash, and 2 KB of SRAM for CY8C20247 variants. It operates from 1.71 V to 5.5 V across a -40 °C to 85 °C temperature range. On-chip resources include an I2C slave interface, SPI master/slave interface, three 16-bit timers, a watchdog timer, and a 10-bit incremental ADC.
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| Device class | CapSense PSoC controller |
| CPU core | M8C |
| Maximum CPU frequency | 24MHz |
| Operating supply voltage | 1.71 to 5.5V |
| Operating temperature | -40 to 85°C |
| Flash memory | 16KB |
| SRAM | 2KB |
| CapSense sensors | 10 |
| Digital I/O pins | 13 |
| Analog inputs | 13 |
| ADC resolution | 10bit |
| I2C slave speeds | 50, 100, 400kHz |
| SPI communication speed | 0.0469 to 3MHz |
| Timers | Three 16-bit timers |
| Deep sleep current | 0.1 typµA |
| Standby current | 1.07 typµA |
| Flash endurance | 50000cycles |
| ESD protection | 2000 HBMV |
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Technical reference manual for PSoC CY8C20xx7/S and CY8C20055 families covering M8C CPU core, CapSense, digital resources, and register configurations.
