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

• 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

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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