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AT45DB081D-SU-2.5

Part # AT45DB081D-SU-2.5
Description DATAFLASH, 8M, SERIAL, 2.5V -IND TEMP, GREEN 8 LEAD SOIC
Category IC
Availability Out of Stock
Qty 0
Qty Price
1 + $0.65000

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

40
3596E–DFLASH–02/07
AT45DB081D
23. Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
23.1 Main Memory Page Read
23.2 Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
FLASH MEMORY ARRAY
PAGE (256/264 BYTES)
BUFFER 2 (256/264 BYTES)BUFFER 1 (256/264 BYTES)
I/O INTERFACE
MAIN MEMORY
PAGE TO
BUFFER 1
MAIN MEMORY
PAGE TO
BUFFER 2
MAIN MEMORY
PAGE READ
BUFFER 1
READ
BUFFER 2
READ
SO
SI (INPUT)
CMD
PA11-7
PA6-0, BA8
X
CS
n n+1
SO (OUTPUT)
BA7-0
4 Dummy Bytes for Serial
X
ADDRESS FOR BINARY PAGE SIZE
A19-A16
A15-A8
A7-A0
Starts reading page data into buffer
SI (INPUT)
CMD
PA11-7
PA6-0, X
CS
SO (OUTPUT)
XXXX XXXX
BINARY PAGE SIZE
A19-A8 + 8 DON'T CARE BITS
41
3596E–DFLASH–02/07
AT45DB081D
23.3 Buffer Read
24. Detailed Bit-level Read Waveform – RapidS Serial Interface Mode 0/Mode 3
24.1 Continuous Array Read (Legacy Opcode E8H)
24.2 Continuous Array Read (Opcode 0BH)
CMD
CS
n n+1
X
X
1 Dummy Byte
X..X, BFA9-8
BFA7- 0
BINARY PAGE SIZE
15 DON'T CARE + BFA8-BFA0
Each transition
represents 8 bits
SI (INPUT)
SO (OUTPUT)
SCK
CS
SI
SO
MSB MSB
2310
11101000
675410119812 63666765646233 3431 3229 30 68 71 727069
OPCODE
AAAA AAAAA
MSB
XXXX XX
MSB MSB
DDDDDDDDDD
ADDRESS BITS 32 DON'T CARE BITS
DATA BYTE 1
HIGH-IMPEDANCE
BIT 2047/2111
OF PAGE n
BIT 0 OF
PAGE n+1
SCK
CS
SI
SO
MSB MSB
2310
00001011
675410119812 39424341403833 3431 3229 30 44 47 484645
OPCODE
AAAA AAAAA
MSB
XXXX XX
MSB MSB
DDDDDDDDDD
ADDRESS BITS A19 - A0 DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
36 3735
X
X
42
3596E–DFLASH–02/07
AT45DB081D
24.3 Continuous Array Read (Low Frequency: Opcode 03H)
24.4 Main Memory Page Read (Opcode: D2H)
24.5 Buffer Read (Opcode D4H or D6H)
SCK
CS
SI
SO
MSB MSB
2310
00000011
675410119812 373833 36353431 3229 30 39 40
OPCODE
AAAA AAAAA
MSB MSB
DDDDDDDDDD
ADDRESS BITS A19-A0
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB MSB
2310
11010010
6754101198 12 63 66 6765646233 3431 3229 30 68 71 727069
OPCODE
AAAA AAAAA
MSB
XXXX XX
MSB MSB
DDDDDDDDDD
ADDRESS BITS 32 DON'T CARE BITS
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB MSB
2310
11010100
675410119812 394243414037 3833 36353431 3229 30 44 47 484645
OPCODE
XXXX AAAXX
MSB
XXXXXXXX
MSB MSB
DDDDDDDDDD
ADDRESS BITS
BINARY PAGE SIZE = 16 DON'T CARE + BFA7-BFA0
STANDARD DATAFLASH PAGE SIZE =
15 DON'T CARE + BFA8-BFA0
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
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