AT45DB161E-CCUD-T Adesto Technologies, AT45DB161E-CCUD-T Datasheet - Page 29

• 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

Table 9-2.
Note:
9.4.1
9.4.2
9.4.3
9.4.4
Bit
7
6
5
4
3
2
1
0
RDY/BUS
1. R = Readable only
RDY/BUSY Bit
The RDY/BUSY bit is used to determine whether or not an internal operation, such as a program or erase, is in progress.
To poll the RDY/BUSY bit to detect the completion of an internally timed operation, new Status Register data must be
continually clocked out of the device until the state of the RDY/BUSY bit changes from a Logic 0 to a Logic 1.
COMP Bit
The result of the most recent Main Memory Page to Buffer Compare operation is indicated using the COMP bit. If the
COMP bit is a Logic 1, then at least one bit of the data in the Main Memory Page does not match the data in the buffer.
DENSITY Bits
The device density is indicated using the DENSITY bits. For the AT45DB161E, the four bit binary value is 1011. The
decimal value of these four binary bits does not actually equate to the device density; the four bits represent a
combinational code relating to differing densities of DataFlash devices. The DENSITY bits are not the same as the
density code indicated in the JEDEC Device ID information. The DENSITY bits are provided only for backward
compatibility to older generation DataFlash devices.
PROTECT Bit
The PROTECT bit provides information to the user on whether or not the sector protection has been enabled or disabled,
either by the software-controlled method or the hardware-controlled method.
RES
EPE
RES
SLE
PS2
PS1
ES
Y
Status Register Format – Byte 2
Ready/Busy Status
Reserved for Future Use
Erase/Program Error
Reserved for Future Use
Sector Lockdown Enabled
Program Suspend Status
(Buffer 2)
Program Suspend Status
(Buffer 1)
Erase Suspend
Name
Type
R
R
R
R
R
R
R
R
1)
(
Description
0
1
0
0
1
0
0
1
0
1
0
1
0
1
Device is busy with an internal operation.
Device is ready.
Reserved for future use.
Erase or program operation was successful.
Erase or program error detected.
Reserved for future use.
Sector Lockdown command is disabled.
Sector Lockdown command is enabled.
No program operation has been suspended while using Buffer 2.
A sector is program suspended while using Buffer 2.
No program operation has been suspended while using Buffer 1.
A sector is program suspended while using Buffer 1.
No sectors are erase suspended.
A sector is erase suspended.
Adesto AT45DB161E [DATASHEET]
8782D–DFLASH–11/2012
29