AT45DB161E-CCUD-T Adesto Technologies, AT45DB161E-CCUD-T Datasheet - Page 24

• Manufacturer Part Number: AT45DB161E-CCUD-T
• Description: Flash 16M 2.5-3.6V 85Mhz Serial Flash
• Manufacturer: Adesto Technologies

Specifications of AT45DB161E-CCUD-T

• Rohs: yes
• Data Bus Width: 8 bit
• Memory Type: Data Flash
• Memory Size: 16 Mbit
• Architecture: Flexible, Uniform Erase
• Timing Type: Synchronous
• Interface Type: SPI
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.5 V
• Maximum Operating Current: 26 mA
• Operating Temperature: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: BGA-9
• Factory Pack Quantity: 4000
• Part # Aliases: AT45DB161D-CU

8.1.2
Table 8-2.
Table 8-3.
Table 8-4.
Figure 8-2. Read Sector Lockdown Register
Freeze Sector Lockdown
The Sector Lockdown command can be permanently disabled, and the current sector lockdown state can be
permanently frozen so that no additional sectors can be locked down aside from those already locked down. Any
attempts to issue the Sector Lockdown command after the Sector Lockdown State has been frozen will be ignored.
To issue the Freeze Sector Lockdown command, the CS pin must be asserted and the opcode sequence of 34h, 55h,
AAh, and 40h must be clocked into the device. Any additional data clocked into the device will be ignored. When the CS
pin is deasserted, the current sector lockdown state will be permanently frozen within a time of t
bit in the Status Register will be permanently reset to a Logic 0 to indicate that the Sector Lockdown command is
permanently disabled.
Table 8-5.
Sector Number
Locked
Unlocked
Sectors 0a and 0b Unlocked
Sector 0a Locked
Sector 0b Locked
Sectors 0a and 0b Locked
Command
Read Sector Lockdown Register
Command
Freeze Sector Lockdown
CS
SO
SI
Sector Lockdown Register
Sector 0 (0a and 0b) Sector Lockdown Register Byte Value
Read Sector Lockdown Register Command
Freeze Sector Lockdown
Each transition represents eight bits
35h
XX
XX
XX
(Page 0-7)
Sector 0a
Bit 7:6
00
11
00
11
Data
See
Byte 1
n
Byte 1
34h
0 (0a, 0b)
35h
Adesto AT45DB161E [DATASHEET]
Table 8-3
(Page 8-255)
Sector 0b
Bit 5:4
00
00
11
11
n + 1
Data
Byte 2
Byte 2
55h
XXh
Bit 3:2
N/A
00
00
00
00
LOCK
8782D–DFLASH–11/2012
Byte 3
Byte 3
AAh
XXh
n + 15
. In addition, the SLE
Data
Bit 1:0
1 to 15
N/A
00
00
00
00
FFh
00h
Byte 4
Byte 4
XXh
40h
Value
Data
C0h
F0h
00h
30h
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