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We are using the Military grade version of the SPI FLASH Memory S25FL512S.
The exact PN is: S25FL512SAGBAEC10. The datasheet states that:
Cycling Endurance – 100 Program-Erase Cycles
Does this mean we can not Erase-Program more than 100 times?
The project is in developmental state. The device is used in lab environment and never exceed 85C operating temperature. Lately we are experiencing difficulty to program the device without errors.
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Hello, Thank you for contacting Cypress Semiconductor.
No. The Cycling Endurance of 100 Program Cycles mean that the S25FL512S (Military Grade) will endure
at least 100 Program Cycles.
Hope this helps.
Best regards,
Albert
Cypress Semiconductor Corp.
An Infineon Technologies Company
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Hello,
The S25FL512S (Military Grade) will endure at least 100 program cycles. There is the possibility the device may degrade in timing and performance (become slower), after 100 cycles, but the actual program cycles is not a definite number, as some devices may degrade let's say, for example, at 105 program cycles, while another device may degrade after 119 program cycles. This is just as an example.
Please note, the Military-Grade devices are tested to MIL-STD 883x Test methods, which are more stringent and rigorous. Please carefully adhere to the specifications indicated within the Military Grade datasheet.
However, the industrial devices are not tested to to MIL-STD 883x Test methods. Therefore, Military Grade devices should not be confused with having the same operational use case scenario as industrial devices. The test methods are more stringent and rigorous, as per MIL-STD 883x.
Hope this helps...
Best regards,
Albert
Cypress Semiconductor Corp
An Infineon Technologies Company
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So if we have programmed the device more than 100 then the device may not be program correctly after that. We have programmed the device more than 100 times in lab environment (below 85C operating temperature) and we start having problem programming the device
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If we always operate the device below 85C, should we be able to Erase and Program it 100,000 cycles minimum as stated the Industrial device datasheet?
This is an urgent issue for us. I hope an FAE can drop me a call at 805-879-2180. Thank you.
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Hello,
The S25FL512S (Military Grade) will endure at least 100 program cycles. There is the possibility the device may degrade in timing and performance (become slower), after 100 cycles, but the actual program cycles is not a definite number, as some devices may degrade let's say, for example, at 105 program cycles, while another device may degrade after 119 program cycles. This is just as an example.
Please note, the Military-Grade devices are tested to MIL-STD 883x Test methods, which are more stringent and rigorous. Please carefully adhere to the specifications indicated within the Military Grade datasheet.
However, the industrial devices are not tested to to MIL-STD 883x Test methods. Therefore, Military Grade devices should not be confused with having the same operational use case scenario as industrial devices. The test methods are more stringent and rigorous, as per MIL-STD 883x.
Hope this helps...
Best regards,
Albert
Cypress Semiconductor Corp
An Infineon Technologies Company