AT45DB021D-SH-T Atmel, AT45DB021D-SH-T Datasheet - Page 33

• Manufacturer Part Number: AT45DB021D-SH-T
• Description: IC FLASH 2MBIT 66MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT45DB021D-SH-T

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 2M (1024 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 (5.3mm Width), 8-SOP, 8-SOEIAJ
• Cell Type: NOR
• Density: 2Mb
• 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
• Word Size: 8b
• Number Of Words: 256K
• Supply Current: 15mA
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18. Electrical Specifications
Table 18-1.
Table 18-2.
3638I–DFLASH–04/09
Temperature under Bias ................................ -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
All Input Voltages (except V
with Respect to Ground ...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground .............................-0.6V to V
Operating Temperature (Case)
V
CC
Power Supply
Absolute Maximum Ratings*
DC and AC Operating Range
CC
both +25°C and +125°C and with a supply voltage of 3.7V, which exceeds the specified
datasheet operating voltage range. The results of all of the extensive tests indicate that the con-
tents of a portion of memory being read continuously could be altered after 800,000,000 read
operations only if that portion of the memory was not erased or reprogrammed at all during the
800,000,000 read operations. If that portion of memory was reprogrammed at some point, then it
would take another 800,000,000 read operations after reprogramming before the contents could
potentially be altered. For example, if the Serial Flash is being used for boot code storage, then
it would take 800,000,000 boot operations before that boot code may become altered, provided
that the boot code was not updated or reprogrammed. If an application was to read the entire
memory array non-stop at a clock frequency of 10MHz, it would take over 5 years to reach
800,000,000 read operations. Atmel firmly believes that this extended testing result should not
be a cause for concern. We also believe that most, if not all, applications will never read the
same portion of memory 800,000,000 times throughout the life of the application without ever
updating that portion of memory.
but including NC pins))
CC
+ 0.6V
Ind.
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. The "Absolute Maximum Rat-
ings" are stress ratings only and functional
operation of the device at these or any other con-
ditions beyond those indicated in the operational
sections of this specification is not implied. Expo-
sure to absolute maximum rating conditions for
extended periods may affect device reliability.
Voltage Extremes referenced in the "Absolute
Maximum Ratings" are intended to accommo-
date short duration undershoot/overshoot condi-
tions and does not imply or guarantee functional
device operation at these levels for any extended
period of time
AT45DB021D
-40°C to 85°C
2.7V to 3.6V
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