AT45DB161D-SU Atmel, AT45DB161D-SU Datasheet - Page 12
![IC FLASH 16MBIT 66MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
AT45DB161D-SU
Manufacturer Part Number
AT45DB161D-SU
Description
IC FLASH 16MBIT 66MHZ 8SOIC
Manufacturer
Atmel
Datasheets
1.AT45DB161D-CU.pdf
(51 pages)
2.AT45DB161D-SU.pdf
(6 pages)
3.AT45DB161D-SU.pdf
(53 pages)
Specifications of AT45DB161D-SU
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
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Architecture
Sectored
Interface Type
SPI
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Operating Current
15 mA
Mounting Style
SMD/SMT
Organization
128 KB x 16
Current, Input, Leakage
1 μA
Current, Operating
11 mA (Read), 12 mA (Program/Erase)
Current, Output, Leakage
1
Data Retention
20 yrs.
Density
16M
Package Type
EIAJ SOIC
Temperature, Operating
-40 to +85 °C
Time, Access
6 ns
Time, Address Hold
5
Time, Address Setup
5
Time, Fall
6.8 ns
Time, Rise
6.8 ns
Voltage, Input, High
1.89 to 2.52 V
Voltage, Input, Low
0.81 to 1.08 V
Voltage, Output, High
2.5 V
Voltage, Output, Low
0.4 V
Voltage, Supply
2.7 to 3.6 V
Memory Configuration
4096 Pages X 528 Bytes
Clock Frequency
66MHz
Supply Voltage Range
2.5V To 3.6V, 2.7V To 3.6V
Rohs Compliant
Yes
Access Time (max)
6ns
Boot Type
Not Required
Address Bus
1b
Operating Supply Voltage (typ)
3/3.3V
Operating Temp Range
-40C to 85C
Program/erase Volt (typ)
2.7 to 3.6V
Sync/async
Synchronous
Operating Temperature Classification
Industrial
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (max)
3.6V
Supply Current
15mA
Mounting
Surface Mount
Pin Count
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT45DB161D-SU
Manufacturer:
ATMEL
Quantity:
106 020
Company:
Part Number:
AT45DB161D-SU
Manufacturer:
AYMEL
Quantity:
1
Part Number:
AT45DB161D-SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT45DB161D-SU-2.5
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT45DB161D-SU-N03
Manufacturer:
NS
Quantity:
487
Company:
Part Number:
AT45DB161D-SU-SL383
Manufacturer:
AMS
Quantity:
30 000
8.1
8.1.1
8.1.2
8.1.3
12
Software Sector Protection
AT45DB161D
Enable Sector Protection Command
Disable Sector Protection Command
Various Aspects About Software Controlled Protection
Sectors specified for protection in the Sector Protection Register can be protected from program
and erase operations by issuing the Enable Sector Protection command. To enable the sector
protection using the software controlled method, the CS pin must first be asserted as it would be
with any other command. Once the CS pin has been asserted, the appropriate 4-byte command
sequence must be clocked in via the input pin (SI). After the last bit of the command sequence
has been clocked in, the CS pin must be deasserted after which the sector protection will be
enabled.
Figure 8-1.
To disable the sector protection using the software controlled method, the CS pin must first be
asserted as it would be with any other command. Once the CS pin has been asserted, the
appropriate 4-byte sequence for the Disable Sector Protection command must be clocked in via
the input pin (SI). After the last bit of the command sequence has been clocked in, the CS pin
must be deasserted after which the sector protection will be disabled. The WP pin must be in the
deasserted state; otherwise, the Disable Sector Protection command will be ignored.
Figure 8-2.
Software controlled protection is useful in applications in which the WP pin is not or cannot be
controlled by a host processor. In such instances, the WP pin may be left floating (the WP pin is
internally pulled high) and sector protection can be controlled using the Enable Sector Protection
and Disable Sector Protection commands.
If the device is power cycled, then the software controlled protection will be disabled. Once the
device is powered up, the Enable Sector Protection command should be reissued if sector pro-
tection is desired and if the WP pin is not used.
Command
Enable Sector Protection
Command
Disable Sector Protection
Enable Sector Protection
Disable Sector Protection
CS
CS
SI
SI
Each transition
represents 8 bits
Each transition
represents 8 bits
Opcode
Opcode
Byte 1
Byte 1
Byte 1
Byte 1
Opcode
Opcode
Byte 2
Byte 2
3DH
3DH
Opcode
Opcode
Byte 3
Byte 3
Byte 2
Byte 2
2AH
2AH
Opcode
Opcode
Byte 4
Byte 4
Byte 3
Byte 3
7FH
7FH
3500I–DFLASH–8/07
Byte 4
Byte 4
A9H
9AH