AT45DB021B-SI Atmel, AT45DB021B-SI Datasheet - Page 25

• Manufacturer Part Number: AT45DB021B-SI
• Description: IC FLASH 2MBIT 20MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT45DB021B-SI

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 2M (1024 pages x 264 bytes)
• Speed: 20MHz
• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 15-1. Algorithm for Sequentially Programming or Reprogramming the Entire Array
Notes:
1937J–DFLSH–9/05
1. This type of algorithm is used for applications in which the entire array is programmed sequentially, filling the array
2. A page can be written using either a Main Memory Page Program operation or a Buffer Write operation followed by a Buffer
3. The algorithm above shows the programming of a single page. The algorithm will be repeated sequentially for each page
page-by-page.
to Main Memory Page Program operation.
within the entire array.
MAIN MEMORY PAGE PROGRAM
THROUGH BUFFER
(82H, 85H)
START
END
provide address
and data
MEMORY PAGE PROGRAM
BUFFER TO MAIN
BUFFER WRITE
(84H, 87H)
(83H, 86H)
AT45DB021B
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