Hyper Flash Forum Discussions

how can i download spansion_tc_pkg for testbench and not able to see in my extracted verilog model folder?

Does CYPRESS have this kind of Read-While-Write (RWW) feature flash ? https://www.macronix.com/en-us/about/news/Pages/Macronix-Read-While-Write-(RWW)-Flash-Now-Adopted-by-Renesas%E2%80%99-Automotive-Instrument-Cluster-RH850D1M1A-MCU.aspx

Hi

We're using S27KS0641DPBHV020 and S26KS256SDPBHV020 in our design and wanted to ask if Cypress provide symbols and footprints for these devices for OrCad. Thanks.

Moazam

Hi. cypress

in flash roadmap, there has S28HS02GT product, and I also check the dailed PN is S28HS02GTGABHM050, but I can't find any datasheet in website, whether do you provide it to me(flance.fang@weikeng.com.cn)?

thanks

flance fang

Hello,

I will use a HyperFlash memory from S26KL series at 100MHz clock rate (becose of my 3V3 power supply).

What are the impedance maching requirements ?

thank you,

PAM

Hello,

[Question]

Is Pull-up of DQ / RWDS required?

[Background]

In P.25 [7. Interface States] of the following materials, it is stated that DQ / RWDS is in High-Z state during Cold / Warm Reset or Standby.

https://www.cypress.com/file/213356/download

I think this requires the Master MCU to place the bidirectional pins in the High-Z state.

In other words, since Hyper Flash and MCU are in High-Z state with each other, I think it is necessary to prevent latch-up due to shoot-through current.

In order to prevent this, it is the recognition that pull-up must be attached to the signal line.

However, when I looked at the schematic of the reference board (IMXRT1050-EVK) below, there was no external pullup.

https://www.nxp.com/docs/en/nxp/application-notes/AN12239.pdf

Is Pull-up unnecessary?

Best regards,

Takahashi