The CY14B108K-ZS45XI operates over an industrial temperature range of -40°C to +85°C.
You can implement a backup power supply using a battery or supercapacitor connected to the VCC pin. The device has a built-in power switch that allows the backup power supply to take over when the main power supply fails.
The maximum clock frequency for the SPI interface is 40 MHz.
Page writes are used to write data to the device in 8-byte increments. Block writes are used to write data to the device in 256-byte increments. The device automatically handles page and block writes, and the host controller only needs to send the write command and data.
The WP (Write Protect) pin is used to prevent accidental writes to the device. When the WP pin is tied low, the device is write-protected, and any write attempts will be ignored.