AT45DB081D-SSU Atmel, AT45DB081D-SSU Datasheet - Page 22
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AT45DB081D-SSU
Manufacturer Part Number
AT45DB081D-SSU
Description
IC FLASH 8MBIT 66MHZ 8SOIC
Manufacturer
Atmel
Datasheet
1.AT45DB081D-MU.pdf
(53 pages)
Specifications of AT45DB081D-SSU
Format - Memory
FLASH
Memory Type
DataFLASH
Memory Size
8M (4096 pages x 264 bytes)
Speed
66MHz
Interface
SPI, RapidS
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Density
8Mb
Access Time (max)
6ns
Interface Type
Serial (SPI)
Boot Type
Not Required
Address Bus
1b
Operating Supply Voltage (typ)
3/3.3V
Operating Temp Range
-40C to 85C
Package Type
SOIC EIAJ
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
Architecture
Sectored
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Operating Current
15 mA
Mounting Style
SMD/SMT
Organization
64 KB x 16
Ic Interface Type
Serial, SPI
Clock Frequency
50MHz
Supply Voltage Range
2.7V To 3.6V
Memory Case Style
SOIC
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT45DB081D-SSU
Manufacturer:
Atmel
Quantity:
28 200
Part Number:
AT45DB081D-SSU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT45DB081D-SSU-2.5
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
12. Deep Power-down
22
Atmel AT45DB081D
The result of the most recent Main Memory Page to Buffer Compare operation is indicated using
bit six of the status register. If bit six is a zero, then the data in the main memory page matches
the data in the buffer. If bit six is a one, then at least one bit of the data in the main memory page
does not match the data in the buffer.
Bit one in the Status Register is used to provide information to the user whether or not the sector
protection has been enabled or disabled, either by software-controlled method or hardware-con-
trolled method. A logic one indicates that sector protection has been enabled and logic zero
indicates that sector protection has been disabled.
Bit zero in the Status Register indicates whether the page size of the main memory array is con-
figured for “power of 2” binary page size (256-bytes) or the Atmel
size (264-bytes). If bit zero is a one, then the page size is set to 256-bytes. If bit zero is a zero,
then the page size is set to 264-bytes.
The device density is indicated using bits five, four, three, and two of the status register. For the
Atmel AT45DB081D, the four bits are 1001 The decimal value of these four binary bits does not
equate to the device density; the four bits represent a combinational code relating to differing
densities of DataFlash devices. The device density is not the same as the density code indicated
in the JEDEC device ID information. The device density is provided only for backward
compatibility.
Table 11-1.
After initial power-up, the device will default in standby mode. The Deep Power-down command
allows the device to enter into the lowest power consumption mode. To enter the Deep Power-
down mode, the CS pin must first be asserted. Once the CS pin has been asserted, an opcode
of B9H command must be clocked in via input pin (SI). After the last bit of the command has
been clocked in, the CS pin must be de-asserted to initiate the Deep Power-down operation.
After the CS pin is de-asserted, the will device enter the Deep Power-down mode within the
maximum t
are ignored except for the Resume from Deep Power-down command.
Table 12-1.
Figure 12-1. Deep Power-down
Command
Deep Power-down
RDY/BUSY
Bit 7
EDPD
Status Register Format
Deep Power-down
time. Once the device has entered the Deep Power-down mode, all instructions
COMP
Bit 6
Bit 5
1
CS
SI
Bit 4
Each transition
represents 8 bits
0
Bit 3
Opcode
0
Bit 2
1
PROTECT
®
DataFlash
Bit 1
Opcode
B9H
®
3596M–DFLASH–5/10
standard page
PAGE SIZE
Bit 0