The recommended crystal oscillator frequency for the CY8C3245LTI-139T is 32.768 kHz. This frequency is used as the clock source for the internal real-time clock (RTC) and watchdog timer.
The GPIO pins on the CY8C3245LTI-139T can be configured as analog or digital inputs using the Pin Configuration Register (PCR). The PCR register is used to set the pin mode, drive mode, and input buffer mode for each GPIO pin.
The maximum current that can be sourced or sunk by the GPIO pins on the CY8C3245LTI-139T is 25 mA. However, the total current sourced or sunk by all GPIO pins should not exceed 150 mA to ensure reliable operation.
The internal voltage regulator on the CY8C3245LTI-139T can be used to power external components by connecting the VREG pin to the external component's power pin. The internal voltage regulator can supply up to 50 mA of current to external components.
The minimum and maximum operating temperature range for the CY8C3245LTI-139T is -40°C to +85°C. The microcontroller is guaranteed to operate within this temperature range, but it may not function correctly outside of this range.
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CY8C3245LTI-139T Overview
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