The recommended operating voltage range for the CA91C142D-33CEV is 2.7V to 3.6V.
The CA91C142D-33CEV can be configured to use an external clock source or an internal clock source. To use an external clock source, connect the clock signal to the XIN pin and set the CKS bit in the SYSCR register to 0. To use an internal clock source, set the CKS bit to 1 and configure the internal clock frequency using the FREQ bits in the SYSCR register.
The maximum frequency of the CA91C142D-33CEV is 33.33 MHz.
The CA91C142D-33CEV can be reset by asserting the RESET pin low for at least 2 clock cycles. The device will also reset automatically when the power supply voltage falls below the minimum operating voltage.
The WDT is a timer that resets the device if it does not receive a reset signal within a certain time period. This is used to prevent the device from getting stuck in an infinite loop or other abnormal operation.
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CA91C142D-33CEV Overview
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