Power Pins
- 3V - this is the 3V power input pin for the flash chip. These chips can only be used with 3.3V power and logic!
- G - common ground for power and logic.
Only use these breakouts with 3.3V logic and power!
SPI Logic Pins
- CS - Chip Select input. Enables and disables device operation. Set low to select the device to begin a SPI transaction. Marked on the front of the board with a white square.
- IO0 - Data Input/Data Input Output 0 (MOSI). Used for serially writing instructions, addresses or data to the device on the rising edge of CLK.
- IO1 - Data Output/Data Input Output 1 (MISO). Used for reading data or status from the device on the falling edge of CLK.
- IO2 - Write Protect input/Data Input Output 2. Used to prevent the status register from being written to. This pin is active low.
- IO3 - Hold Input/Data Input Output 3. Allows the device to be paused while it is actively selected.
- CLK - Serial Clock Input (SCK). Provides the timing for serial input and output operations.
Page last edited March 08, 2024
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