User Manual

22
AT45DB642
1638F–DFLSH–09/02
Detailed Bit-level Read Timing – Inactive Clock Polarity Low (Continued)
Main Memory Page Read (Opcode: 52H)
Buffer Read (Opcode: 54H or 56H)
Status Register Read (Opcode: 57H)
SI
0
1
0
10
XXX
CS
SO
SCK
12345 60 61 62 63 64 65 66 67
XX
HIGH IMPEDANCE
D
7
D
6
D
5
DATA OUT
COMMAND OPCODE
MSB
tSU
tV
SI
0
1
0
10
XXX
CS
SO
SCK
12345 36 37 38 39 40 41 42 43
XX
HIGH IMPEDANCE
D
7
D
6
D
5
DATA OUT
COMMAND OPCODE
MSB
tSU
tV
SI
0
1
0
10
111
CS
SO
SCK
12345 7891011 12 16 17
HIGH IMPEDANCE
D
7
D
6
D
5
STATUS REGISTER OUTPUT
COMMAND OPCODE
MSB
tSU
tV
6
D
1
D
0
D
7
LSB MSB