AT45D011-SI Atmel, AT45D011-SI Datasheet - Page 11

• Manufacturer Part Number: AT45D011-SI
• Description: IC FLASH 1MBIT 15MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT45D011-SI

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 1M (512 pages x 264 bytes)
• Speed: 15MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 4.5 V ~ 5.5 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
• Other names: AT45D011SI

Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
Main Memory Page Program through Buffer
Buffer Write
Buffer to Main Memory Page Program
(Data from Buffer Programmed into Flash Page)
CS
SI
Each transition represents
8 bits and 8 clock cycles
CS
SI
CMD
CMD
CS
PAGE (264 BYTES)
SI
r ···r , PA8-7
X
PA6-0, BFA8
X···X, BFA8
CMD
PAGE PROGRAM
MAIN MEMORY
BUFFER (264 BYTES)
FLASH MEMORY ARRAY
BUFFER TO
r ···r , PA8-7
BUFFER
I/O INTERFACE
WRITE
BFA7-0
BFA7-0
SI
Starts self-timed erase/program operation
PA6-0, X
n
n
MAIN MEMORY PAGE
PROGRAM THROUGH
BUFFER
n+1
· Completes writing into buffer
n+1
X
· Completes writing into buffer
· Starts self-timed erase/program operation
Last Byte
n = 1st byte written
n+1 = 2nd byte written
Last Byte
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