Nor Flash Forum Discussions

The minimum erasesize of this chip is a Sector, wich for this chip is 4KB throughout the whole chip.

So I only need 4KB Buffers / Caches instead of 4KB + 64KB for higher regions.

Is my understanding of the datasheet correct?

Thanks !

- Dominik

Hello,         

I am planning to use NOR flash memory from the Cypress family. Could you please give me access to the source code for "Spansion FFS"? THANK YOU!

Hi,

What is the difference between S29GL128P10FFIS10 and S29GL128P11FFIS40? The package and function? Could you pls provide the data sheet for the both part?

Thanks,

Jennifer Zuo

Hi there,

could you give me some consideration on the layout of the S70FL01GS Flash? I would like to use this flash in QSPI mode. In fact, I am going to use two of these ICs - one on the Top and another on the Bottom layers. From the datasheet I could see that there is no convenient pin swapping feature (such as in the DDRs), which is a bummer. Are there any consideration that I should keep in mind as to the Layout of the two Flash ICs?

Also, I have found this article http://www.cypress.com/file/217366/download​​, and I have a few questions regarding its content:

- It says that I have to keep CLK trace 50 Ohm char. impedance. My uC doesn't have 50 Ohm on the output of the QSPI pins (at least nothing is mentioned in the Datasheet). Will it help then to keep it 50 Ohm if I don't even know what is on the output of my SPI CLK pin (impedance-wise)?

- Do I really have to keep all the traces the same length, as critical as 3 mm? (It's just that the QSPI speed is not that high...)

Anyway, any suggestions will be appreciated!

Kind Regards,

Den

Hi

S70FL01GSAGMFI011 have a pin VIO/RFU, but the datasheet said:

Note that the Versatile I/O (VIO) power supply (pin 14 on the 16-pin SO package and ball E4 on the 5x5 BGA package) is not

supported, and pin 14 and ball E4 are RFU (Reserved for Future Use) in the standard configuration of the S70FL01GS device.

Contact your local sales office to confirm availability with the VIO feature enabled.

  If CYP have this product with VIO function? -- I can power 3.3V or 1.8V to VIO.