
AT45DB041B
17. Detailed Bit-level Read Timing – SPI Mode 3
17.1
Continuous Array Read (Opcode: E8H)
CS
SCK
1
2
63
64
65
66
67
t SU
SI
1
1
X
X
X
SO
HIGH-IMPEDANCE
t V
DATA OUT
D7 D6 D5
D2
D1
LSB
D0
MSB
D7
D6
D5
BIT 2111
OF
PAGE n
BIT 0
OF
PAGE n+1
17.2
Main Memory Page Read (Opcode: D2H)
CS
SCK
1
2
3
4
5
61
62
63
64
65
66
67
68
t SU
COMMAND OPCODE
SI
1
1
0
1
0
X
X
X
X
X
SO
HIGH-IMPEDANCE
t V
D7
DATA OUT
D6 D5
D4
MSB
17.3
Buffer Read (Opcode: D4H or D6H)
CS
SCK
1
2
3
4
5
37
38
39
40
41
42
43
44
t SU
COMMAND OPCODE
SI
1
1
0
1
0
X
X
X
X
X
SO
HIGH-IMPEDANCE
t V
D7
DATA OUT
D6 D5
D4
MSB
25
3443D–DFLSH–2/08