AT45DB161B-CI Atmel, AT45DB161B-CI Datasheet - Page 17
AT45DB161B-CI
Manufacturer Part Number
AT45DB161B-CI
Description
IC FLASH 16MBIT 20MHZ 24CBGA
Manufacturer
Atmel
Datasheet
1.AT45DB161B-CC.pdf
(33 pages)
Specifications of AT45DB161B-CI
Format - Memory
FLASH
Memory Type
DataFLASH
Memory Size
16M (4096 pages x 528 bytes)
Speed
20MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
24-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
2224I–DFLSH–10/04
Each transition represents
SO
CS
SI
8 bits and 8 clock cycles
CMD
SO
CS
SI
MAIN MEMORY
PAGE (528 BYTES)
BUFFER 1 (528 BYTES)
r r , PA11-6
BUFFER 1
BUFFER 1
PAGE TO
CS
SO
SI
READ
The following block diagram and waveforms illustrate the various read sequences
available.
CMD
PA5-0, BA9-8
CMD
X
FLASH MEMORY ARRAY
BA7-0
X···X, BFA9-8
r r , PA11-6
I/O INTERFACE
SO
X
MAIN MEMORY
PAGE READ
Starts reading page data into buffer
BFA7-0
PA5-0, XX
X
BUFFER 2 (528 BYTES)
X
X
X
n
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2
READ
n+1
X
AT45DB161B
n = 1st byte read
n+1 = 2nd byte read
n
n+1
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