AT45DB021D-SH-B Atmel, AT45DB021D-SH-B Datasheet - Page 35

• 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
Figure 17-8. Command Sequence for Read/Write Operations for Page Size 264-Bytes (Except Status Register
Figure 17-9. Write Operations
Figure 17-10. Buffer Write
SI (INPUT)
SI (INPUT)
PAGE (256-/264 BYTES)
MSB
CS
Read, Manufacturer and Device ID Read)
The following block diagram and waveforms illustrate the various write sequences available
5 Don’t Care
X X X X X
PAGE PROGRAM
Bits
BUFFER (256-/264-BYTES)
CMD
MAIN MEMORY
FLASH MEMORY ARRAY
BUFFER TO
BUFFER
CMD
I/O INTERFACE
WRITE
8-bits
X X X X
SI
Page Address
(PA9 - PA0)
X
16 DON'T CARE + BFA7-BFA0
8-bits
X X X X
BINARY PAGE SIZE
X···X, BFA8
8-bits
X X X
(BA8 - BA0/BFA8 - BFA0)
BFA7-0
Byte/Buffer Address
X X X X X X X X
n
Completes writing into the buffer
Atmel AT45DB021D
n+1
LSB
Last Byte
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