AT45DB161D-TU Atmel, AT45DB161D-TU Datasheet - Page 14

• Manufacturer Part Number: AT45DB161D-TU
• Description: IC FLASH 16MBIT 66MHZ 28TSOP
• Manufacturer: Atmel

Specifications of AT45DB161D-TU

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 16M (4096 pages x 528 bytes)
• Speed: 66MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSOP
• Memory Configuration: 4096 Pages X 528 Bytes
• Interface Type: Serial, SPI
• Clock Frequency: 66MHz
• Supply Voltage Range: 2.5V To 3.6V, 2.7V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
3500I–DFLASH–8/07
Table 9-3
Value
Data
CxH
FxH
0xH
3xH