AT45DB321 ATMEL Corporation, AT45DB321 Datasheet - Page 10

• Manufacturer Part Number: AT45DB321
• Description: 32-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:
10
1.
2.
3.
RESET
“r” designates bits reserved for larger densities.
It is recommended that “r” be a logical “0” for densities of 32M bit or smaller.
For densities larger than 32M bit, the “r” bits become the most significant Page Address bit for the appropriate density.
SCK
SO
CS
SI
MSB
AT45DB321
larger densities
Reserved for
HIGH IMPEDANCE
SI
r X X X X X X X
Page Address
(PA12-PA0)
CMD
X X X X X X X X
8 bits
8 bits
(BA9-BA0/BFA9-BFA0)
Byte/Buffer Address
X X X X X X X X
8 bits
t
RST
t
REC
HIGH IMPEDANCE
LSB
t
CSS