AT45DB021D-SU Atmel, AT45DB021D-SU Datasheet - Page 37

• Manufacturer Part Number: AT45DB021D-SU
• Description: Flash 2M SERIAL 2.7V - IND TEMP
• Manufacturer: Atmel

Specifications of AT45DB021D-SU

• Product Category: Flash
• Rohs: yes
• Memory Size: 2 Mbit
• Architecture: Sectored
• Interface Type: SPI
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V
• Maximum Operating Current: 15 mA
• Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC
• Organization: 32 KB x 8
• Factory Pack Quantity: 95

3638J–DFLASH–5/10
19.
SCK
Figure 18-2. Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
Figure 18-3. Buffer Read
Detailed Bit-level Read Waveform – Atmel RapidS Serial Interface Mode
0/Mode 3
Figure 19-1. Continuous Array Read (Legacy Opcode E8H)
SO
CS
SO (OUTPUT)
SO (OUTPUT)
SI
SI (INPUT)
SI (INPUT)
CS
CS
MSB
HIGH-IMPEDANCE
1
0
1
1
1
2
OPCODE
0
3
Each transition
represents 8 bits
1
4
0
5
0
6
CMD
0
7
MSB
CMD
A
8
A
9
A
10 11
16 DON'T CARE + BFA7-BFA0
ADDRESS BITS
X
A
A
BINARY PAGE SIZE
12
A
6 DON’T CARE BITS + A17-A8 + 8 DON'T CARE BITS
X..X, BFA8
X···X, PA9-7
A
29 30
A
A
BFA7- 0
31 32
MSB
BINARY PAGE SIZE
X
32 DON'T CARE BITS
X
33 34
X
1 Dummy Byte
PA6-0, X
X
Starts reading page data into buffer
X
Atmel AT45DB021D
X
62
X
63
MSB
D
64
XXXX XXXX
n
D
65
DATA BYTE 1
D
66 67
D
D
68
BIT 2047/2111
n+1
OF PAGE n
D
69
D
70
D
71 72
MSB
D
D
PAGE n+1
BIT 0 OF
37