AT45DB011B-CC Atmel, AT45DB011B-CC Datasheet - Page 16

• Manufacturer Part Number: AT45DB011B-CC
• Description: IC FLASH 1MBIT 20MHZ 9CBGA
• Manufacturer: Atmel

Specifications of AT45DB011B-CC

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 1M (512 pages x 264 bytes)
• Speed: 20MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 9-CBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Write
Operations
Main Memory Page Program through Buffer
Buffer Write
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
16
CS
SI
Each transition represents
8 bits and 8 clock cycles
CS
SI
AT45DB011B
CMD
CMD
CS
SI
The following block diagram and waveforms illustrate the various write sequences available.
r ···r , PA8-7
X
PAGE (264 BYTES)
PA6-0, BFA8
X···X, BFA8
CMD
r ···r , PA8-7
BFA7-0
BFA7-0
PAGE PROGRAM
MAIN MEMORY
Starts self-timed erase/program operation
BUFFER (264 BYTES)
FLASH MEMORY ARRAY
BUFFER TO
PA6-0, X
BUFFER
n
I/O INTERFACE
WRITE
n
SI
n+1
· Completes writing into buffer
n+1
X
· Completes writing into buffer
· Starts self-timed erase/program operation
MAIN MEMORY PAGE
PROGRAM THROUGH
BUFFER
n = 1st byte written
n+1 = 2nd byte written
Last Byte
Last Byte
1984J–DFLASH–06/06