CapSense controller integrates an M8C 8-bit CPU, 16 KB flash, and 2 KB SRAM for capacitive-sensing applications. The device supports up to 31 CapSense sensors, 34 digital I/O pins, and 34 analog inputs in the 48-pin QFN variants. It operates from 1.71 V to 5.5 V over a -40 °C to 85 °C ambient temperature range. On-chip resources include I2C slave, SPI master/slave, three 16-bit timers, comparators, ADC capability, internal oscillators, low-voltage detect, and programmable GPIO modes.
Checking distributor stock and pricing after the page loads.
| Product family | PSOC™ 1 / CY8C20xx7/S |
| Core | M8C CPU |
| Maximum CPU frequency | 24MHz |
| Supply voltage | 1.71 to 5.5V |
| Flash memory | 16KB |
| SRAM | 2KB |
| CapSense sensors | 31 |
| Digital I/O pins | 34 |
| Analog inputs | 34 |
| Ambient operating temperature | -40 to 85°C |
| Deep sleep current | 0.10 typ, 1.1 maxµA |
| Standby current | 1.07 typ, 1.50 maxµA |
| 24 MHz supply current | 2.88 typ, 4.00 maxmA |
| GPIO sink current per I/O at 3.0 V to 5.0 V | 25 maxmA |
| Flash endurance | 50000cycles |
| Flash data retention | 20years |
| ADC resolution | 8 to 10bits |
| I2C input high level | 0.65 × VDD to VDD + 0.7V |
| Package thermal impedance | 18 typical for 48-pin QFN°C/W |
| Solder reflow peak temperature | 260°C |
These are design resources that include the Cypress Semiconductor CY8C20647
Technical reference manual for PSoC CY8C20xx7/S and CY8C20055 families covering M8C CPU core, CapSense, digital resources, and register configurations.
