Nor Flash Forum Discussions

Hi.cypress

I can't find the PN S28HS512TGABHB Device Qualification Report, whether do you provide it Qualification Report?

thanks

flance fang

I am working on a solder joint fatigue analysis for a board that uses your S25FL132K0XNFI011 memory.  Can you please tell me the coefficient of thermal expansion (CTE) for this part?  Thanks!

Cypress様

現在フラッシュアクセスをECCが有効になるよう検討を進めておりますが、

一部のアクセスでECCを有効にしようとすると大量のイレースが発生し、

アクセス時間がかなり長くなってしまうことが確認されたため、

一部のページでECC無効として使用しようと検討しております。

そこで質問となりますが、データシート上に記載のデータリテンション期間

　10k P/Ecycles   20年、100k P/E cycles 2年　

これはECC有効時の保証値かと思われますが、あっていますか。

また、ECC無効時の実力値についてご教授頂けないでしょうか。

必要な情報としては、以下となります。

　1K P/E cycles = > xxx年

　10K P/E cycles => xxx年

  100K P/E cycles => xxx年

※問合せはGL-TおよびGL-Sシリーズがターゲットです。

以上、よろしくお願いいたします。

Hello

Please tell me about S25FL256LAGNFB010 operation.

If the power supply voltage is input from 0V, and the input does not exceed 2.4V, what happens to the this device?

(Dose the device remain reset(stopped))?

Doesn't it work even if the input of 0<VDD<2.4(V) continues?

Regards

Hayato

Maybe I haven't had my coffee this morning. But I'm hung up on something in the Semper address space mapping.

I know that when a page is accessed two 32 byte half pages are accessed. And I'm aware that Semper uses "mirror bit" technology.

But I see a 2x issue with respect to the number of byte addresses in a sector and the size of the sector.  I'm trying to understand what basic thing I'm overlooking.

Likely it's something obvious.

In the image below we have a 128KB sector with only 16 bits of address space... last I googled 16 bits define a 64K address space

By the same token a Uniform Sector layout of 256K byte sectors has an address range of 0x0-0x1FFFF (17 bits) which defines a 128K Addressing range not a 256K addressing range.  I re read the documentation multiple times, but I can't figure out how to access 256K of unique bytes with only 128K of address space.

What big thing am I missing?

I'm looking at  Document Number 002-12337 Rev O.  Specifically the 256KB UniformSectorAddressMap.

What is it about SemperMirror Bit technology that I am missing where I can somehow access 256K bytes using 128K of unique addresses.

I thought it might be in the half page access, but its not clear.  Help me understand.  Thanks!

I'm looking to replace the S29AL016J (3V) NOR Flash with the S29AS016J (1.8V) part. Are there any constraints/issues/incompatibilities with that (R/W time,delays, etc.), that I need to be aware of? Thanks!

I added the official driver(V16.2.1) to ARM program.

First, I try to read chip ID, and return ID message like datasheet. Then I try to read addr 0x000000, and return 0xFF, to this step, everything seems fine. But when I try to erase/write data to addr 0x0000000, the reg of SR1V always 0xFF, and SR2V is 0x00. That show the chip is in busy state.

1. This is hardware connect. And SPI set is: CPOL = 0、CPHA = 0, CLK = 3MHZ.

2. This is code, just call the official driver.

3. This is the logic wave.

ID wave:

erase wave:

can u give some help about this

look forward to apply.