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AT45DB321B Flash

AT45DB321B Flash Series Datasheet

The ATMEL AT45DB321B is a 2.7-volt only, serial interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. Its 34,603,008 bits of memory are organized as 8192 pages of 528 bytes each. In addition to the main memory, the AT45DB321B also contains two SRAM data buffers of 528 bytes each. The buffers allow receiving of data while a page in the main memory is being reprogrammed, as well as reading or writing a continuous data stream. EEPROM emulation (bit or byte alterability) is easily handled with a self-contained three step Read-Modify-Write operation. Unlike conventional Flash memories that are accessed randomly with multiple address lines and a parallel interface, the DataFlash uses a SPI serial interface to sequentially access its data. DataFlash supports SPI mode 0 and mode 3. The simple serial interface facilitates hardware layout, increases system reliability, minimizes switching noise, and reduces package size and active pin count. 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. The device operates at clock frequencies up to 20 MHz with a typical active read current consumption of 4 mA.


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AT45DB321B-CC AT45DB321B-CI AT45DB321B-RC AT45DB321B-RI
AT45DB321B-T1 AT45DB321B-TC AT45DB321B-TI AT45DB321B-TU
AT45DB321B Flash Series Part Photos
additional photos
Additional Images ( 3 )
AT45DB321B-RI photos
AT45DB321B-RI (4)
AT45DB321B-TI photos
AT45DB321B-TI (5)

AT45DB321B Flash


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Ordering Information
Select from our Available Inventory for an Immediate Price Quote
AT45DB321B-CC AT45DB321B-CI AT45DB321B-RC AT45DB321B-RI
AT45DB321B-T1 AT45DB321B-TC AT45DB321B-TI AT45DB321B-TU

AT45DB321B Flash


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Marking Information
AT45DB321B Flash Marking Information
AT45DB321B-RI
ATMEL AT45DB321B-RI 0501
AT45DB321B-TI
ATMEL AT45DB321B TI 0422

AT45DB321B Flash


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AT45DB321B Flash Part Photos
additional photos
AT45DB321B Flash
additional photos
AT45DB321B Flash
additional photos
AT45DB321B Flash
AT45DB321B-RI photos
AT45DB321B-RI
AT45DB321B-RI photos
AT45DB321B-RI
AT45DB321B-RI photos
AT45DB321B-RI
AT45DB321B-RI photos
AT45DB321B-RI
AT45DB321B-TI photos
AT45DB321B-TI
AT45DB321B-TI photos
AT45DB321B-TI
AT45DB321B-TI photos
AT45DB321B-TI
AT45DB321B-TI photos
AT45DB321B-TI
AT45DB321B-TI photos
AT45DB321B-TI

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