Hello,
Chip Erase time is variant on flash density, technology node, number of erase cycles have been gone through, etc. Each individual flash device may have different Chip Erase time. Datasheet gives typical erase time and maximum erase time. Please refer to respective flash family datasheet.
Typical erase time is the statistic distribution of the erase time for all the flash devices of the same flash family. It is normally used to estimate the average erase performance. Most of the flash devices have the erase time close to the typical erase time.
Max erase time specify the possible max time erase may reach. It is normally used to set the timeout timer for erase operation.
To achieve the fastest possible erase time from system/application point of view, the suggested approach is to polling flash Status Register to check erase completeness.
Thank you
Regards,
Bushra
