AT45DB021 ATMEL Corporation, AT45DB021 Datasheet - Page 8
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
AT45DB021
Manufacturer Part Number
AT45DB021
Description
2-Megabit 2.7-volt Only Serial DataFlash
Manufacturer
ATMEL Corporation
Datasheet
1.AT45DB021.pdf
(18 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT45DB021
Manufacturer:
ATMEL
Quantity:
11 500
Part Number:
AT45DB021
Manufacturer:
N/A
Quantity:
20 000
Company:
Part Number:
AT45DB021-A
Manufacturer:
ST
Quantity:
406
Company:
Part Number:
AT45DB021-CU
Manufacturer:
ATMEL
Quantity:
11 000
Company:
Part Number:
AT45DB021-RC
Manufacturer:
ATM
Quantity:
2 415
Part Number:
AT45DB021-SSH-T-SL842
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT45DB021-TC
Manufacturer:
ATMEL
Quantity:
303
Part Number:
AT45DB021B-CC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT45DB021B-SC
Manufacturer:
AT
Quantity:
20 000
Part Number:
AT45DB021B-TI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Reset Timing (Inactive Clock Polarity Low Shown)
Command Sequence for Read/Write Operations (Except Status Register Read)
Notes:
8
2.
3.
1.
RESET
SCK
“r” designates bits reserved for larger densities.
It is recommended that “r” be a logical “0” for densities of 2M bit or smaller.
For densities larger than 2M bit, the “r” bits become the most significant Page Address bit for the appropriate density.
SO
CS
SI
AT45DB021
MSB
HIGH IMPEDANCE
larger densities
Reserved for
SI
r r r X X X X X
Page Address
(PA11-PA0)
CMD
X X X X X X X X
8 bits
8 bits
(BA8-BA0/BFA8-BFA0)
Byte/Buffer Address
X X X X X X X X
8 bits
tRST
tREC
HIGH IMPEDANCE
LSB
tCSS