AT25DF321A-MH-T

The AT25DF321A is a serial interface Flash memory device designed for use in a wide variety of high-volume consumer based applications in which program code is shadowed from Flash memory into embedded or external RAM for execution. The flexible erase architecture of the AT25DF321A, with its erase granularity as small as 4 Kbytes, makes it ideal for data storage as well, eliminating the need for additional data storage EEPROM devices. The physical sectoring and the erase block sizes of the AT25DF321A have been optimized to meet the needs of today's code and data storage applications. By optimizing the size of the physical sectors and erase blocks, the memory space can be used much more efficiently.

• Serial peripheral interface (spi) compatible
• Very high operating frequencies
• Flexible, optimized erase architecture for code + data storage applications
• Individual sector protection with global protect/unprotect feature: 64 sectors of 64 Kbytes each
• Hardware controlled locking of protected sectors
• 128-byte programmable otp security register
• Program and erase suspend/resume
• Automatic checking and reporting of erase/program failures
• Software controlled reset
• Endurance: 100,000 program/erase cycles
• Data retention: 20 years