The recommended crystal oscillator frequency for the CY8C4025AZI-S403 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 CY8C4025AZI-S403 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 CY8C4025AZI-S403 is 25 mA. However, the total current sourced or sunk by all GPIO pins should not exceed 150 mA to ensure reliable operation.
The CY8C4025AZI-S403 has several low-power modes, including Sleep, Hibernate, and Deep Sleep. These modes can be entered using the Power Mode Register (PMR). The device can also be woken up from these modes using various wake-up sources, such as GPIO interrupts or timer events.
The CY8C4025AZI-S403 has an operating temperature range of -40°C to +85°C. However, the device can be operated at temperatures up to 105°C for short periods of time, such as during device startup or shutdown.
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