AT45D32SSUB1D-CU View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT45D32SSUB1D-CU' PDF : 57 Pages View PDF
AT45DB321D
23. Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
FLASH MEMORY ARRAY
PAGE (512/528 BYTES)
MAIN MEMORY
PAGE TO
BUFFER 1
BUFFER 1 (512/528 BYTES)
BUFFER 1
READ
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2 (512/528 BYTES)
MAIN MEMORY
PAGE READ
BUFFER 2
READ
I/O INTERFACE
SO
23.1 Main Memory Page Read
CS
ADDRESS FOR BINARY PAGE SIZE
A21-A16
A15-A8
A7-A0
SI (INPUT)
CMD
PA12-6
PA5-0, BA9-8
BA7-0
X
X
SO (OUTPUT)
4 Dummy Bytes
n
n+1
23.2 Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
Starts reading page data into buffer
CS
SI (INPUT)
BINARY PAGE SIZE
A21-A9 + 9 DON'T CARE BITS
CMD
PA12-6
PA5-0, XX
XXXX XXXX
SO (OUTPUT)
41
3597N–DFLASH–04/09
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