at45db021b ATMEL Corporation, at45db021b Datasheet - Page 21

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at45db021b

Manufacturer Part Number
at45db021b
Description
At45db021b 2-megabit 2.7-volt Only Dataflash
Manufacturer
ATMEL Corporation
Datasheet

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13. Detailed Bit-level Read Timing – Inactive Clock Polarity High
13.1
13.2
13.3
1937J–DFLSH–9/05
SCK
SCK
SCK
CS
SO
CS
SO
CS
SO
Continuous Array Read (Opcode: 68H)
Main Memory Page Read (Opcode: 52H)
Buffer Read (Opcode: 54H or 56H)
SI
SI
SI
t
SU
t
t
SU
SU
1
HIGH-IMPEDANCE
1
1
0
0
0
2
COMMAND OPCODE
COMMAND OPCODE
2
2
1
1
1
3
3
0
0
HIGH-IMPEDANCE
HIGH-IMPEDANCE
X
4
4
63
1
1
X
5
5
64
t
V
0
0
X
65
D 7
DATA OUT
66
X
X
D 6
61
37
67
X
X
D 5
62
38
X
X
63
39
D 2
X
X
64
40
t
t
V
V
D 1
BIT 2111
PAGE n
X
X
OF
65
41
LSB
D 0
MSB
MSB
D 7
D 7
66
42
MSB
D 7
PAGE n+1
DATA OUT
DATA OUT
D 6
D 6
BIT 0
OF
AT45DB021B
67
43
D 6
D 5
D 5
68
44
D 5
D 4
D 4
21

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