AT45DB081B-CI-2.5 Atmel, AT45DB081B-CI-2.5 Datasheet - Page 17
![IC FLASH 8MBIT 20MHZ 14CBGA](/photos/7/29/72989/453-14-cbga_sml.jpg)
AT45DB081B-CI-2.5
Manufacturer Part Number
AT45DB081B-CI-2.5
Description
IC FLASH 8MBIT 20MHZ 14CBGA
Manufacturer
Atmel
Datasheet
1.AT45DB081B-CC.pdf
(33 pages)
Specifications of AT45DB081B-CI-2.5
Format - Memory
FLASH
Memory Type
DataFLASH
Memory Size
8M (4096 pages x 264 bytes)
Speed
20MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.5 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
14-CBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Read
Operations
Main Memory Page Read
Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
Buffer Read
2225J–DFLSH–2/08
Each transition represents
SO
CS
SI
8 bits and 8 clock cycles
CMD
SO
CS
SI
MAIN MEMORY
PAGE (264 BYTES)
BUFFER 1 (264 BYTES)
The following block diagram and waveforms illustrate the various read sequences available.
r r r , PA11-7
BUFFER 1
BUFFER 1
CS
SO
PAGE TO
SI
READ
CMD
PA6-0, BA8
CMD
X
FLASH MEMORY ARRAY
BA7-0
r r r , PA11-7
X···X, BFA8
I/O INTERFACE
SO
X
MAIN MEMORY
PAGE READ
Starts reading page data into buffer
BFA7-0
PA6-0, X
X
BUFFER 2 (264 BYTES)
X
X
X
n
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2
READ
n+1
X
AT45DB081B
n = 1st byte read
n+1 = 2nd byte read
n
n+1
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