AT45DB021D-SH-B Atmel, AT45DB021D-SH-B Datasheet - Page 41

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

Specifications of AT45DB021D-SH-B

• 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
• Architecture: Sectored
• Interface Type: SPI Serial
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 15 mA
• Mounting Style: SMD/SMT
• Organization: 32 KB x 8
• Memory Configuration: 1024 Pages X 264 Bytes
• Clock Frequency: 66MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SOIC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT45DB021D-SU; AT45DB021D-SU

3638J–DFLASH–5/10
20.
Figure 19-11. Manufacturer and Device Read (Opcode 9FH)
Auto Page Rewrite Flowchart
Figure 20-1. Algorithm for Programming or Reprogramming of the Entire Array Sequentially
Notes:
SCK
SO
CS
SI
MAIN MEMORY PAGE PROGRAM
Note: Each transition
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
3. The algorithm above shows the programming of a single page. The algorithm will be repeated sequentially for each
page-by-page
a Buffer to Main Memory Page Program operation
page within the entire array
THROUGH BUFFER
HIGH-IMPEDANCE
0
OPCODE
(82H)
9FH
6
7
shown for SI and SO represents one byte (8 bits)
8
1FH
14
15
DEVICE ID BYTE 1
16
START
END
provide address
22
and data
23
MEMORY PAGE PROGRAM
DEVICE ID BYTE 2
24
BUFFER TO MAIN
BUFFER WRITE
30
(84H)
(83H)
31
32
00H
Atmel AT45DB021D
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