CY62167GE30 Double Error Detection

MaCh_4815156 · ‎Nov 06, 2020

We are looking at using 2x CY62167GE30-45ZXI for our application to get 4 MB SRAM memory. I understand the single SEC functionality of the ECC, but is there any way of detecting when double errors have occurred?

Out application is for a potentially high radiation environment so will likely hit the 100% chance for MBU listed in AN88889 frequently.

PradiptaB_11 · ‎Nov 06, 2020

Hi Matt,

If your application is likely with high radiation then we can suggest you to check for radiation hardened parts in 4 MB density like CYRS1049G.

These parts are made for specifically high radiation conditions and can provide you with satisfactory performance. You can always reach out to the nearest Cypress FAE or distributors for more information on this part. (Or Create a case with us, where we can share the datasheet. Cannot share in forum as it is confidential)

As far as detection and correction of MBUs, it is not supported by Cypress’s ECC architecture. Devices with the ERR pin will flag the MBU

however, the condition of the data is not corrected in such a scenario, and it may contain MBUs

Thanks,

Pradipta.

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CY62167GE30 Double Error Detection

CY62167GE30 Double Error Detection

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