Nor Flash

We are using S25FL064P  flash as a code flash with the microcontroller LPC1850 in qspi mode, SPIFI interface. After that we replaced S25FL064P with S25FL256S as we required higher code size. But when we changed flash to S25FL256S from S25FL064P, we found that code executes with half the speed what it was executed  in S25FL064P. Checked the SPI clock . In S25FL064P it was about 18MHz while in S25FL256S it was about 11 MHz. Also found that out of 4 data lines I02 & I03 data was not presented  in S25FL256S. Has anyone faced this problem ?

I want to use S25FL512SAGMFI010 as my storage.
But I don't find the S25FL512SAGMFI010's footprint dimension(like below).

Will you support the dimension for me to layout.
Thanks a lot.

hello!

I am trying to erase the chip according to the chip sheet. my program is like the picture which is the same as the sheet example. However, when the erase operation is over, I read the data in a section of address and found that it is not 0xfff. the result is attached on. I don't know what the problem is. I hope you can help me.

I'm trying to mount the new S25FS256T Semper Nano flash to a breakout board and saw this app note "AN69061 Design, Manufacturing, and Handling Guidelines for Infineon Wafer Level Chip Scale Packages .  The app note is five years old, does anyone know if this information is still valid?

hello everyone！

I would like to ask how to complete flash self-detection? Or is there a more convincing way to use the detection process in a real project to complete it? For example, S29GL01GP, in the project, should the drivers on the manual (sector erase, chip erase, read and write, etc.) be tested in turn to prove the validity of the chip? That's too inconvenient!

I have a custom board with S25FL256S external flash

I try to read in quad mode, it works but the read speed is the same as when I use commands 0x13 (4READ) or 0x0C (4FAST_READ ) or 0x6C (4QOR ) or 0xEC (4QIOR), all give the same read speed.

I measure the time to read one sector of 64KB, and quad mode reading doesn’t seem to speed reading time.

I'm In quad mode, I set configuration register to 0x02 (quad mode enabled).

The data that I read is correct (because the total sum of the data and that’s what I get after reading).

I was hoping quad read commands 4QOR and 4QIOR would be close to 4 times faster