AT45DB161E-CCUD-T Adesto Technologies, AT45DB161E-CCUD-T Datasheet - Page 14

• 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

6.9
Table 6-2.
Chip Erase
The Chip Erase command allows the entire main memory array to be erased can be erased at one time.
To execute the Chip Erase command, a 4-byte command sequence of C7h, 94h, 80h, and 9Ah must be clocked into the
device. Since the entire memory array is to be erased, no address bytes need to be clocked into the device, and any data
clocked in after the opcode will be ignored. After the last bit of the opcode sequence has been clocked in, the CS pin
must be deasserted to start the erase process. The erase operation is internally self-timed and should take place in a
time of t
The Chip Erase command will not affect sectors that are protected or locked down; the contents of those sectors will
remain unchanged. Only those sectors that are not protected or locked down will be erased.
The WP pin can be asserted while the device is erasing, but protection will not be activated until the internal erase cycle
completes.
The device also incorporates an intelligent algorithm that can detect when a byte location fails to erase properly. If an
erase error arises, it will be indicated by the EPE bit in the Status Register.
Table 6-3.
Figure 6-1. Chip Erase
PA11/
Command
Chip Erase
CS
A20
0
0
0
0
1
1
1
1
•
•
•
CE
. During this time, the RDY/BUSY bit in the Status Register will indicate that the device is busy.
PA10/
A19
0
0
0
0
1
1
1
1
Sector Erase Addressing
Chip Erase Command
•
•
•
Each transition represents eight bits
PA9/
A18
0
0
0
1
0
0
1
1
•
•
•
C7h
PA8/
A17
0
0
1
0
0
1
0
1
•
•
•
94h
PA7/
A16
X
X
X
X
X
X
0
0
•
•
•
80h
PA6/
A15
0
0
X
X
X
X
X
X
•
•
•
PA5/
A14
X
X
X
X
X
X
0
0
•
•
•
9Ah
Byte 1
PA4/
C7h
A13
X
X
X
X
X
X
0
0
•
•
•
Adesto AT45DB161E [DATASHEET]
PA3/
A12
X
X
X
X
X
X
0
1
•
•
•
Byte 2
94h
PA2/
A11
X
X
X
X
X
X
X
X
•
•
•
PA1/
A10
X
X
X
X
X
X
X
X
•
•
•
Byte 3
8782D–DFLASH–11/2012
80h
PA0/
A9
X
X
X
X
X
X
X
X
•
•
•
Byte 4
Sector
9Ah
0a
0b
12
13
14
15
1
2
•
•
•
14