Flash memory from Microchip problem SST25VF080B

[Kareem101]

Trying to use SST25VF080B to store some important data, but I am finding the hardest time to get useful info from data sheet,

The Datasheet didnt specify how do define the addresses that i will write in or read from ??

If anyone used this chip before, The help would be very much appreciated

Thanks

 

[jolly jacob]

Hi,

Its there in datasheet.


It's a SPI communication so no need to set any device address in communication.
Use CE# pin for chip selection and use above mentioned code for data transfer and erase.

Thanks,
Jolly Jacob

 

[D.A.(Tony)Stewart]

24 bit Address for memory is MSB 1st then address auto increment begins (AAI) .Default is byte mode address.

Does the datasheet not make sense?

• Prior to any write operation, the Write-Enable (WREN) instruction must be executed.
• Initiate the AAI Word Program instruction by executing an 8-bit command, ADH, followed by address bits [A23-A0 ].
• Following the addresses, two bytes of data are input sequentially, each one from MSB (Bit 7) to LSB (Bit 0).
• The first byte of data (D0) is programmed into the initial address [A23 -A1 ] with A0 =0, the second byte of Data (D1) is programmed into the initial address [A23 -A1 ] with A0 =1.
• CE# must be driven high before executing the AAI Word Program instruction.
• Check the BUSY status before entering the next valid command.
• Once the device indicates it is no longer busy, data for the next two sequential addresses may be programmed, followed by the next two, and so on