AT45DB ATMEL Corporation, AT45DB Datasheet - Page 9

• Manufacturer Part Number: AT45DB
• Description: 1-Megabit 2.7-volt Only Serial DataFlash
• Manufacturer: ATMEL Corporation

Reset Timing (Inactive Clock Polarity Low Shown)
Command Sequence for Read/Write Operations (Except Status Register Read)
Notes:
1.
2.
3.
RESET
SCK
“r” designates bits reserved for larger densities.
It is recommended that “r” be a logical “0”.
For densities larger than 1M bit, the “r” bits become the most significant Page Address bit for the appropriate density.
SO
CS
SI
MSB
HIGH IMPEDANCE
larger densities
SI
Reserved for
r r r r
r r X X
CMD
Page Address
(PA8-PA0)
X X X X X X X X
8 bits
8 bits
(BA8-BA0/BFA8-BFA0)
Byte/Buffer Address
X X X X X X X X
8 bits
tRST
tREC
HIGH IMPEDANCE
LSB
tCSS
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