The recommended operating voltage range for STK11C68-SF45I is 4.5V to 5.5V.
The STK11C68-SF45I can be programmed using Cypress's CY3125-DK development kit and the Cypress Programmer software.
The maximum clock frequency supported by STK11C68-SF45I is 40 MHz.
Yes, STK11C68-SF45I has 2KB of built-in EEPROM.
While the recommended operating voltage range is 4.5V to 5.5V, STK11C68-SF45I can operate at 3.3V with some limitations. However, it's recommended to consult with Cypress Semiconductor's application engineers to ensure proper operation.