The S3FN21DXZZ-COCD microcontroller features an ARM core operating at up to 40MHz. It supports multiple interfaces, including I2C, SPI, USB, and USART. The device has 128KB of FLASH memory and 8KB of RAM. It operates over a supply voltage range of 1.8V to 5.5V and is specified for use up to 85°C. The microcontroller includes 9 timers/counters.
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| Core Architecture | ARM |
| Frequency | 40MHz |
| Interface | I2C, SPI, USB, USART |
| Max Operating Temperature | 85°C |
| Memory Size | 128KB |
| Memory Type | FLASH |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 5.5V |
| Min Supply Voltage | 1.8V |
| Number of Timers/Counters | 9 |
| RAM Size | 8KB |
| RoHS | Not Compliant |
