AT45DB321D-CCU Adesto Technologies, AT45DB321D-CCU Datasheet - Page 34
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AT45DB321D-CCU
Manufacturer Part Number
AT45DB321D-CCU
Description
Flash 32M 2.7-3.6V, 66Mhz Serial Flash
Manufacturer
Adesto Technologies
Datasheet
1.AT45DB321D-CCU.pdf
(51 pages)
Specifications of AT45DB321D-CCU
Rohs
yes
Data Bus Width
8 bit
Memory Type
Data Flash
Memory Size
32 Mbit
Architecture
Flexible, Uniform Erase
Timing Type
Synchronous
Interface Type
SPI
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
Maximum Operating Current
15 mA
Operating Temperature
- 40 C to + 85 C
Mounting Style
SMD/SMT
Package / Case
BGA-24
Factory Pack Quantity
378
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT45DB321D-CCU-SL383
Manufacturer:
Adesto Technologies
Quantity:
10 000
20.
Figure 19-3. Command Sequence for Read/Write Operations for a 512-Byte Page Size
Figure 19-4. Command Sequence for Read/Write Operations for a 528-Byte Page Size
Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
Figure 20-1. Block Diagram
SI (INPUT)
SI (INPUT)
MSB
MSB
Page (512-/528-bytes)
Buffer 1 (512-/528-bytes)
Page Program
Main Memory
Buffer 1 to
Buffer 1
(Except Status Register Read, Manufacturer, and Device ID Read)
(Except Status Register Read, Manufacturer, and Device ID Read)
WRITE
Don’t care
bits
X X
1 Don’t care
X X X X X X X X X X X X X X
CMD
CMD
bit
X X X XX X X X
Page address
8-bits
8-bits
(A21 - A9)
Page address
(PA12 - PA0)
Flash Memory Array
I/O Interface
8-bits
8-bits
X X X X
SI
(A8 - A0/BFA8 - BFA0)
8-bits
8-bits
Byte/Buffer address
X X X X
X X X X X X X X
(BA9 - BA0/BFA9 - BFA0)
Buffer 2 (512-/528-bytes)
Byte/Buffer address
X X X X X X X X
Buffer 2 to
Main Memory
Page Program
Buffer 2
WRITE
AT45DB321D [DATASHEET]
LSB
LSB
3597R–DFLASH–11/2012
34