CapSense controller uses an M8C 8-bit CPU with up to 24 MHz operation, 8 KB of flash, and 1 KB of SRAM. The device supports 18 CapSense I/O channels, 20 GPIO pins, one 10-bit Delta-Sigma ADC, I2C, SPI, software PWM, and two timer/counter resources. Operation is specified from 1.71 V to 5.5 V across a -40 °C to 85 °C temperature range, with 260 °C peak reflow support. RoHS-compliant and halogen-free material options are documented for the CY8C20337 orderable variants.
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| CPU | M8C |
| Maximum Frequency | 24MHz |
| Flash Memory | 8kByte |
| SRAM | 1kByte |
| Operating Voltage | 1.71 to 5.5V |
| Operating Temperature | -40 to 85°C |
| GPIOs | 20 |
| CapSense IO | 18 |
| CapSense Channels | 1 |
| CapSense Technology | CSA & CSD |
| ADC | Delta-Sigma, 1 channel, 10-bit at 5.9 ksps |
| Communication Interfaces | I2C, SPI |
| I2C Interfaces | 1 |
| SPI Interfaces | 1 |
| Timer/Counter | 2 |
| PWM | Software |
| Peak Reflow Temperature | 260°C |
| Lead Ball Finish | Ni/Pd/Au |
| RoHS | Compliant |
| Halogen Free | Yes |
| Lead-free | Yes |
These are design resources that include the Cypress Semiconductor CY8C20337
Technical reference manual for PSoC CY8C20xx7/S and CY8C20055 families covering M8C CPU core, CapSense, digital resources, and register configurations.
