AT45DB021D-SSH-B-RET Atmel, AT45DB021D-SSH-B-RET Datasheet - Page 35

• Manufacturer Part Number: AT45DB021D-SSH-B-RET
• Manufacturer: Atmel

3638J–DFLASH–5/10
Figure 17-8. Command Sequence for Read/Write Operations for Page Size 264-Bytes (Except Status Register
Figure 17-9. Write Operations
Figure 17-10. Buffer Write
SI (INPUT)
SI (INPUT)
PAGE (256-/264 BYTES)
MSB
CS
Read, Manufacturer and Device ID Read)
The following block diagram and waveforms illustrate the various write sequences available
5 Don’t Care
X X X X X
PAGE PROGRAM
Bits
BUFFER (256-/264-BYTES)
CMD
MAIN MEMORY
FLASH MEMORY ARRAY
BUFFER TO
BUFFER
CMD
I/O INTERFACE
WRITE
8-bits
X X X X
SI
Page Address
(PA9 - PA0)
X
16 DON'T CARE + BFA7-BFA0
8-bits
X X X X
BINARY PAGE SIZE
X···X, BFA8
8-bits
X X X
(BA8 - BA0/BFA8 - BFA0)
BFA7-0
Byte/Buffer Address
X X X X X X X X
n
Completes writing into the buffer
Atmel AT45DB021D
n+1
LSB
Last Byte
35