AT45DB011B-CI Atmel, AT45DB011B-CI Datasheet - Page 17
AT45DB011B-CI
Manufacturer Part Number
AT45DB011B-CI
Description
IC FLASH 1MBIT 20MHZ 9CBGA
Manufacturer
Atmel
Datasheet
1.AT45DB011B-SC.pdf
(32 pages)
Specifications of AT45DB011B-CI
Format - Memory
FLASH
Memory Type
DataFLASH
Memory Size
1M (512 pages x 264 bytes)
Speed
20MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
9-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
1984J–DFLASH–06/06
SO
CS
SI
Each transition represents
8 bits and 8 clock cycles
CMD
SO
CS
SI
r ···r , PA8-7
CS
SO
The following block diagram and waveforms illustrate the various read sequences available.
SI
CMD
PA6-0, BA8
PAGE (264 BYTES)
CMD
X
BA7-0
X···X, BFA8
r ···r , PA8-7
MAIN MEMORY
X
Starts reading page data into buffer
BFA7-0
FLASH MEMORY ARRAY
BUFFER (264 BYTES)
PA6-0, X
PAGE TO
BUFFER
BUFFER
I/O INTERFACE
READ
X
SO
X
X
X
n
n+1
MAIN MEMORY
PAGE READ
X
AT45DB011B
n = 1st byte read
n+1 = 2nd byte read
n
n+1
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