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AT25DF321 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT25DF321 Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 37 page  Features • Single 2.7V - 3.6V Supply • Serial Peripheral Interface (SPI) Compatible – Supports SPI Modes 0 and 3 • 70 MHz Maximum Clock Frequency • Flexible, Uniform Erase Architecture – 4-Kbyte Blocks – 32-Kbyte Blocks – 64-Kbyte Blocks – Full Chip Erase • Individual Sector Protection with Global Protect/Unprotect Feature – Sixty-Four 64-Kbyte Physical Sectors • Hardware Controlled Locking of Protected Sectors • Flexible Programming – Byte/Page Program (1 to 256 Bytes) • Automatic Checking and Reporting of Erase/Program Failures • JEDEC Standard Manufacturer and Device ID Read Methodology • Low Power Dissipation – 7 mA Active Read Current (Typical) – 15 µA Deep Power-Down Current (Typical) • Endurance: 100,000 Program/Erase Cycles • Data Retention: 20 Years • Complies with Full Industrial Temperature Range • Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options – 8-lead SOIC (200-mil wide) – 16-lead SOIC (300-mil wide) 1. Description The AT25DF321 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 shad- owed from Flash memory into embedded or external RAM for execution. The flexible erase architecture of the AT25DF321, 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 AT25DF321 have been opti- mized 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. Because certain code modules and data storage segments must reside by themselves in their own protected sectors, the wasted and unused memory space that occurs with large sectored and large block erase Flash memory devices can be greatly reduced. This increased memory space efficiency allows addi- tional code routines and data storage segments to be added while still maintaining the same overall device density. 32-megabit 2.7-volt Minimum SPI Serial Flash Memory AT25DF321 3669B–DFLASH–6/09 |
Similar Part No. - AT25DF321_09 |
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Similar Description - AT25DF321_09 |
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