AT45DB321E-SUF-T View Datasheet(PDF) - Unspecified

Part Name

Description

MFG CO.

AT45DB321E-SUF-T

32-Mbit DataFlash (with Extra 1-Mbits), 2.3V Minimum SPI Serial Flash Memory

Unspecified 

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Figure 24-3. Main Memory Page to Buffer Transfer

Data From the selected Flash Page is read into either SRAM Buffer

CS

SI (Input)

CMD

Starts Reading Page Data into Buffer

Binary Page Size

A21-A9 + 9 Dummy Bits

XX, PA12-6

PA5-0, XX XXXX XXXX

SO (Output)

Figure 24-4. Buffer Read

CS

SI (Input)

SO (Output)

CMD

Address for Binary Page Size

A21-A16

A15-A8

A7-A0

X

X...X, BFA9-8 BFA7-0

X

No Dummy Byte (opcodes D1H and D3H)

1 Dummy Byte (opcodes D4H and D6H)

n

n+1

Each transition represents eight bits

AT45DB321E 56

8784E–DFLASH–10/2013

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