User Manual

15
AT45DB161B
2224E–DFLSH–10/02
Reset Timing (Inactive Clock Polari ty Low Shown)
Note: T he CS signal should be in the high state before the RESET signal is deasserted.
Command Sequence for Read/Write Operations (except Status Register Read)
Notes: 1. “r” designates bits reserved for larger densities.
2. It is recommended that “r” be a logical “0” for densities of 16M bits or smaller.
3. For densities larger than 16M bits, the “r” bits become the most significant Page Address bit for the appropriate density.
CS
SCK
RESET
SO
HIGH IMPEDANCE HIGH IMPEDANCE
SI
t
RST
t
REC
t
CSS
SI CMD 8 bits
8 bits
8 bits
MSB
Reserved for
larger densities
Page Address
(PA11-PA0)
Byte/Buffer Address
(BA9-BA0/BFA9-BFA0)
LSBr r X X X X X X X X X X X X X X X X X X X X X X