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AN223497 - SERIAL _SPI_ F-RAM POWER-UP _BOOT-UP_ BEHAVIOR AND SYSTEM POWER CIRCUIT DESIGN RECOMMENDATIONS

Infineon serial F-RAM provides fast writes at full interface speed. F-RAM does not have any write delays and data is instantly nonvolatile unlike traditional nonvolatile memories that have write delays of 5 ms or more. In traditional nonvolatile memories, if power is disrupted, the data in transition is lost unless the system has extra power backup such as capacitance or batteries to keep the system running until data is safely stored.

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May 12, 2026