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AT45DB321D Flash

AT45DB321D Flash Series Datasheet

The ATMEL AT45DB321D is a 2.5V or 2.7V, serial interface, sequential access flash memory ideally suited for a wide variety of digital voice-, image-, program code-, and data-storage applications. The AT45DB321D supports the Atmel RapidS serial interface for applications requiring very high speed operations. The RapidS serial interface is SPI compatible for frequencies up to 66MHz. The 34,603,008-bits of memory are organized as 8,192 pages of 512 bytes or 528 bytes each. In addition to the main memory, the AT45DB321D also contains two SRAM buffers of 512/528 bytes each. These buffers allow the receiving of data while a page in the main memory is being reprogrammed, as well as the writing of a continuous data stream. EEPROM (electrically erasable and programmable read-only memory) emulation (bit or byte alterability) is easily handled with a selfcontained, three-step read-modify-write operation. Unlike conventional flash memories, which are accessed randomly with multiple address lines and a parallel interface, Atmel DataFlash® devices use a RapidS serial interface to sequentially access its data. The simple sequential access dramatically reduces active pin count, facilitates hardware layout, increases system reliability, minimizes switching noise, and reduces package size. The device is optimized for use in many commercial and industrial applications where high density, low pin count, low voltage and low power are essential.


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AT45DB321D-CU AT45DB321D-MU AT45DB321D-MWU AT45DB321D-SU
AT45DB321D-TU
AT45DB321D Flash Package Types
family combined
Small-Outline Integrated Circuit (SOIC)
family combined
Small-Outline Package (SOP)
AT45DB321D Flash Series Part Photos
AT45DB321D-MU photos
AT45DB321D-MU (4)
AT45DB321D-SU photos
AT45DB321D-SU (3)
AT45DB321D-TU photos
AT45DB321D-TU (7)

AT45DB321D Flash


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AT45DB321D Flash Part Photos
AT45DB321D-MU photos
AT45DB321D-MU
AT45DB321D-MU photos
AT45DB321D-MU
AT45DB321D-MU photos
AT45DB321D-MU
AT45DB321D-MU photos
AT45DB321D-MU
AT45DB321D-SU photos
AT45DB321D-SU
AT45DB321D-SU photos
AT45DB321D-SU
AT45DB321D-SU photos
AT45DB321D-SU
AT45DB321D-TU photos
AT45DB321D-TU
AT45DB321D-TU photos
AT45DB321D-TU
AT45DB321D-TU photos
AT45DB321D-TU
AT45DB321D-TU photos
AT45DB321D-TU
AT45DB321D-TU photos
AT45DB321D-TU
AT45DB321D-TU photos
AT45DB321D-TU
AT45DB321D-TU photos
AT45DB321D-TU

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