AT45DB011D-MH-Y Atmel, AT45DB011D-MH-Y Datasheet - Page 14
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AT45DB011D-MH-Y
Manufacturer Part Number
AT45DB011D-MH-Y
Description
IC FLASH 1MBIT 66MHZ 8UDFN
Manufacturer
Atmel
Datasheet
1.AT45DB011D-SSH-T.pdf
(52 pages)
Specifications of AT45DB011D-MH-Y
Format - Memory
FLASH
Memory Type
DataFLASH
Memory Size
1M (512 pages x 264 bytes)
Speed
66MHz
Interface
SPI, RapidS
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-UDFN
Data Bus Width
8 bit
Architecture
Sectored
Interface Type
SPI Serial
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Operating Current
25 mA
Mounting Style
SMD/SMT
Organization
32 KB x 4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
9.1
14
Sector Protection Register
AT45DB011D
The nonvolatile Sector Protection Register specifies which sectors are to be protected or unpro-
tected with either the software or hardware controlled protection methods. The Sector Protection
Register contains 4 bytes of data, of which byte locations 0 through 3 contain values that specify
whether sectors 0 through 3 will be protected or unprotected. The Sector Protection Register is
user modifiable and must first be erased before it can be reprogrammed.
format of the Sector Protection Register.
Table 9-2.
Table 9-3.
Note:
Sector Number
Protected
Unprotected
Sectors 0a, 0b Unprotected
Protect Sector 0a
Protect Sector 0b (Page 8-127)
Protect Sectors 0a (Page 0-7), 0b
(Page 8-127)
1. The default value for bytes 0 through 3 when shipped from Atmel
x = don’t care.
(1)
Sector Protection Register
Sector 0 (0a, 0b)
(Page 0-7)
Bit 7, 6
0a
00
11
00
11
See
0 (0a, 0b)
Table 9-3
(Page 8-127)
Bit 5, 4
0b
00
00
11
11
Bit 3, 2
xx
xx
xx
xx
®
is 00H.
Table 9-3
Bit 1, 0
3639H–DFLASH–04/09
1 to 3
xx
xx
xx
xx
FFH
00H
illustrates the
Value
Data
CxH
FxH
0xH
3xH