AT45DB321B不建议在新设计中使用
厂家Manufacturer:    ATMEL
型号Device name:     AT45DB321B

新的设计请使用For new designs please use AT45DB321C.
AT45DB321C: http://www.18ic.com/htm/memory/AT45DB321C.html

描述Description： 4M字节 2.7V 串行接口 DataFlash

The AT45DB321B is a 2.7-volt only, serial interface Flash memory suitable for in-system reprogramming.
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.

AT45DB321B-CC  CBGA24
AT45DB321B-RC  SOIC28
AT45DB321B-TC  TSOP28

AT45DB321B-CI  CBGA24
AT45DB321B-RI  SOP28
AT45DB321B-TI  TSOP28

详细PDF资料Datasheets:
download at45db321B.pdf datasheet click here
http://pdf.18ic.net/datasheet/ic/memory/flash/atmel/at45db321/at45db321B.pdf

应用Application Notes:
AT45DB321.C http://pdf.18ic.net/datasheet/ic/memory/flash/atmel/at45db321/at45db321.c
AT45DB321.H http://pdf.18ic.net/datasheet/ic/memory/flash/atmel/at45db321/at45db321.h
DataFlash Application Note: http://pdf.18ic.net/datasheet/ic/memory/flash/atmel/at45db321/DataFlash.pdf
    AT45DB321B应用、替换等技术讨论请到电子工程师论坛 http://pdf.18ic.com

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