W25Q80BV 1 MByte SPI Flash

1 MByte SPI NOR flash in DIP package. Interfaces via SPI with any microcontroller. 3.3V supply only — requires level shifting when used with 5V systems such as Arduino (e.g., 74LVC245 or 4-transistor shifter).

/CS1
Chip select input for the SPI flash, from the Winbond W25Q80BV datasheet PDIP/SOIC pin configuration.
Type · control
DO / IO12
Serial data output in standard SPI, IO1 in dual/quad SPI modes, from the Winbond datasheet.
Type · dataVoltage · 3.3V logic part per Adafruit product page; use level shifting with 5V controllers.
/WP / IO23
Write protect input in standard SPI, IO2 in quad SPI modes, from the Winbond datasheet.
Type · controlVoltage · 3.3V logic part per Adafruit product page.
GND4
Ground reference.
Type · groundVoltage · 0V
DI / IO05
Serial data input in standard SPI, IO0 in dual/quad SPI modes, from the Winbond datasheet.
Type · dataVoltage · 3.3V logic part per Adafruit product page.
CLK6
Serial clock input for the SPI bus, from the Winbond datasheet.
Type · clockVoltage · 3.3V logic part per Adafruit product page.
/HOLD / IO37
Hold input in standard SPI, IO3 in quad SPI modes, from the Winbond datasheet.
Type · controlVoltage · 3.3V logic part per Adafruit product page.
VCC8
Positive supply for the flash memory.
Type · powerVoltage · 3.3VDC per Adafruit product page.

Pin	Position	Type	Function	Voltage
/CS	1	control	Chip select input for the SPI flash, from the Winbond W25Q80BV datasheet PDIP/SOIC pin configuration.
DO / IO1	2	data	Serial data output in standard SPI, IO1 in dual/quad SPI modes, from the Winbond datasheet.	3.3V logic part per Adafruit product page; use level shifting with 5V controllers.
/WP / IO2	3	control	Write protect input in standard SPI, IO2 in quad SPI modes, from the Winbond datasheet.	3.3V logic part per Adafruit product page.
GND	4	ground	Ground reference.	0V
DI / IO0	5	data	Serial data input in standard SPI, IO0 in dual/quad SPI modes, from the Winbond datasheet.	3.3V logic part per Adafruit product page.
CLK	6	clock	Serial clock input for the SPI bus, from the Winbond datasheet.	3.3V logic part per Adafruit product page.
/HOLD / IO3	7	control	Hold input in standard SPI, IO3 in quad SPI modes, from the Winbond datasheet.	3.3V logic part per Adafruit product page.
VCC	8	power	Positive supply for the flash memory.	3.3VDC per Adafruit product page.

Memory

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