at45db161d ATMEL Corporation, at45db161d Datasheet - Page 14
at45db161d
Manufacturer Part Number
at45db161d
Description
At45db161d 16-megabit 2.5-volt Or 2.7-volt Dataflash
Manufacturer
ATMEL Corporation
Datasheet
1.AT45DB161D.pdf
(53 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT45DB161D
Manufacturer:
ATMEL
Quantity:
3
Part Number:
AT45DB161D
Manufacturer:
AT
Quantity:
20 000
Company:
Part Number:
at45db161d-CCU
Manufacturer:
ATMEL
Quantity:
601
Company:
Part Number:
at45db161d-CCU
Manufacturer:
Adesto Technologies
Quantity:
10 000
Part Number:
at45db161d-CCU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
at45db161d-CCUS
Manufacturer:
CY
Quantity:
9
Company:
Part Number:
at45db161d-CCUT
Manufacturer:
ATMEL
Quantity:
1 504
Part Number:
at45db161d-CCUT
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
at45db161d-CU
Manufacturer:
Adesto Technologies
Quantity:
10 000
Company:
Part Number:
at45db161d-MU
Manufacturer:
BROADCOM
Quantity:
101
Part Number:
at45db161d-MU-2.5
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
at45db161d-SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
9.1
14
Sector Protection Register
AT45DB161D
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 16 bytes of data, of which byte locations 0 through 15 contain values that
specify whether sectors 0 through 15 will be protected or unprotected. The Sector Protection
Register is user modifiable and must first be erased before it can be reprogrammed.
illustrates the 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 8-255)
Protect Sectors 0a (Page 0-7), 0b
(Page 8-255)
1. The default value for bytes 0 through 15 when shipped from Atmel is 00H.
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 8-255)
Bit 5, 4
0b
00
00
11
11
Bit 3, 2
xx
xx
xx
xx
Bit 1, 0
1 to 15
xx
xx
xx
xx
FFH
00H
3500J–DFLASH–4/08
Table 9-3
Value
Data
CxH
FxH
0xH
3xH