AT25DF081-SSHN-B Atmel, AT25DF081-SSHN-B Datasheet - Page 2

• Manufacturer Part Number: AT25DF081-SSHN-B
• Description: IC FLASH 8MBIT 66MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT25DF081-SSHN-B

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 8M (4096 pages x 256 bytes)
• Speed: 66MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 7ns
• Interface Type: Serial (SPI)
• Boot Type: Not Required
• Address Bus: 1b
• Operating Supply Voltage (typ): 1.8V
• Operating Temp Range: -40C to 85C
• Package Type: SOIC
• Sync/async: Synchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 1.65V
• Operating Supply Voltage (max): 1.95V
• Supply Current: 12mA
• Mounting: Surface Mount
• Pin Count: 8
• Architecture: Sectored
• Supply Voltage (max): 1.95 V
• Supply Voltage (min): 1.65 V
• Maximum Operating Current: 12 mA
• Mounting Style: SMD/SMT
• Organization: 64 KB x 16
• Memory Configuration: 4096 Pages X 256 Bytes
• Clock Frequency: 66MHz
• Supply Voltage Range: 1.65V To 1.95V
• Memory Case Style: SOIC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The AT25DF081 also offers a sophisticated method for protecting individual sectors against
erroneous or malicious program and erase operations. By providing the ability to individually pro-
tect and unprotect sectors, a system can unprotect a specific sector to modify its contents while
keeping the remaining sectors of the memory array securely protected. This is useful in applica-
tions where program code is patched or updated on a subroutine or module basis, or in
applications where data storage segments need to be modified without running the risk of errant
modifications to the program code segments. In addition to individual sector protection capabili-
ties, the AT25DF081 incorporates Global Protect and Global Unprotect features that allow the
entire memory array to be either protected or unprotected all at once. This reduces overhead
during the manufacturing process since sectors do not have to be unprotected one-by-one prior
to initial programming.
Specifically designed for use in 1.8-volt systems, the AT25DF081 supports read, program, and
erase operations with a supply voltage range of 1.65V to 1.95V. No separate voltage is required
for programming and erasing.
AT25DF081
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3674E–DFLASH–8/08