AT45DB161D-TU Atmel, AT45DB161D-TU Datasheet - Page 39

• Manufacturer Part Number: AT45DB161D-TU
• Description: IC FLASH 16MBIT 66MHZ 28TSOP
• Manufacturer: Atmel

Specifications of AT45DB161D-TU

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 16M (4096 pages x 528 bytes)
• Speed: 66MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSOP
• Memory Configuration: 4096 Pages X 528 Bytes
• Interface Type: Serial, SPI
• Clock Frequency: 66MHz
• Supply Voltage Range: 2.5V To 3.6V, 2.7V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
22.1
22.2
3500I–DFLASH–8/07
SI (INPUT)
Buffer Write
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
CS
SI (INPUT)
CS
represents 8 bits
Each transition
PAGE PROGRAM
BUFFER 1 (512/528 BYTES)
MAIN MEMORY
PAGE (512/528 BYTES)
BUFFER 1 TO
CMD
BUFFER 1
WRITE
X
15 DON'T CARE + BFA8-BFA0
CMD
BINARY PAGE SIZE
X···X, BFA9-8
FLASH MEMORY ARRAY
I/O INTERFACE
PA11-6
Starts self-timed erase/program operation
BFA7-0
SI
A20-A9 + 9 DON'T CARE BITS
BINARY PAGE SIZE
BUFFER 2 (512/528 BYTES)
n
PA5-0, XX
Completes writing into selected buffer
n+1
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2
WRITE
XXXX XX
n = 1st byte read
n+1 = 2nd byte read
Last Byte
AT45DB161D
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