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AT45DB321E 데이터시트(PDF) 56 Page - Dialog Semiconductor

부품명 AT45DB321E
상세설명  32-Mbit DataFlash (with Extra 1-Mbits), 2.3V Minimum SPI Serial Flash Memory
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AT45DB321E
8784L–DFLASH–3/2019
23.
Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
Figure 23-1. Block Diagram
Figure 23-2. Main Memory Page Read
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



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