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AT45DB021B-SI

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
19
1937J–DFLSH–9/05
AT45DB021B
12. Detailed Bit-level Read Timing – Inactive Clock Polarity Low
12.1 Continuous Array Read (Opcode: 68H)
12.2 Main Memory Page Read (Opcode: 52H)
SI
0
1XX
CS
SO
SCK
12 63 64 65 66 67 68
HIGH-IMPEDANCE
D
7
D
6
D
5
D
2
D
1
D
0
D
7
D
6
D
5
DATA OUT
BIT 0
OF
PAGE n+1
BIT 2111
OF
PAGE n
LSB MSB
t
SU
t
V
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
t
SU
t
V
20
1937J–DFLSH–9/05
AT45DB021B
12.3 Buffer Read (Opcode: 54H or 56H)
12.4 Status Register Read (Opcode: 57H)
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
t
SU
t
V
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
t
SU
t
V
6
D
1
D
0
D
7
LSB MSB
21
1937J–DFLSH–9/05
AT45DB021B
13. Detailed Bit-level Read Timing – Inactive Clock Polarity High
13.1 Continuous Array Read (Opcode: 68H)
13.2 Main Memory Page Read (Opcode: 52H)
13.3 Buffer Read (Opcode: 54H or 56H)
SI
0
1XXX
CS
SO
SCK
12 63 64 65 66 67
HIGH-IMPEDANCE
D
7
D
6
D
5
D
2
D
1
D
0
D
7
D
6
D
5
BIT 0
OF
PAGE n+1
BIT 2111
OF
PAGE n
LSB MSB
t
SU
t
V
DATA OUT
SI
0
1
0
10
XXX
CS
SO
SCK
12345 61 62 63 64 65 66 67
XX
HIGH-IMPEDANCE
D
7
D
6
D
5
DATA OUT
COMMAND OPCODE
MSB
t
SU
t
V
D
4
68
SI
0
1
0
10
XXX
CS
SO
SCK
12345 37 38 39 40 41 42 43
XX
HIGH-IMPEDANCE
D
7
D
6
D
5
DATA OUT
COMMAND OPCODE
MSB
t
SU
t
V
D
4
44
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32

AT45DB021B-SI

Mfr. #:
Buy AT45DB021B-SI
Manufacturer:
Microchip Technology / Atmel
Description:
NOR Flash 2M bit
Lifecycle:
New from this manufacturer.
Delivery:
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