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AT45DB321E Folha de dados(PDF) 67 Page - Renesas Technology Corp

Nome de Peças AT45DB321E
Descrição Electrónicos  32-Mbit DataFlash (with Extra 1-Mbits), 2.3 V Minimum SPI Serial Flash Memory
PDF  80 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

AT45DB321E Folha de dados(HTML) 67 Page - Renesas Technology Corp

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DS-AT45DB321E-8784 Rev. N
Page 67
9/1/23
© 2023 Renesas Electronics
AT45DB321E Datasheet
24. Read Operations
The following block diagram and waveforms show the various read sequences available.
Figure 34. Block Diagram
Figure 35. Main Memory Page Read
Figure 36. Main Memory Page to Buffer Transfer
Data From the selected Flash Page is read into either SRAM Buffer
Flash Memory Array
Page (512/528 bytes)
Buffer 2 (512/528 bytes)
Buffer 1 (512/528 bytes)
I/O Interface
Main Memory
Page To
Buffer 1
Main Memory
Page To
Buffer 2
Main Memory
Page Read
Buffer 1
Read
Buffer 2
Read
SO
CS
SI (Input)
SO (Output)
n
CMD
XX, PA12-6
PA5-0, BA9-8
BA7-0
X
X
Address for Binary Page Size
A21-A16
A15-A8
A7-A0
n
n + 1
4 Dummy Bytes
CS
SI (Input)
CMD
XX, PA12-6
PA5-0, XX
XXXX XXXX
Starts Reading Page Data into Buffer
Binary Page Size
A21-A9 + 9 Dummy Bits
SO (Output)



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