AT45DB081D-SSU Atmel, AT45DB081D-SSU Datasheet - Page 40

• Manufacturer Part Number: AT45DB081D-SSU
• Description: IC FLASH 8MBIT 66MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT45DB081D-SSU

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 8M (4096 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 (3.9mm Width)
• Density: 8Mb
• 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
• Supply Current: 15mA
• Mounting: Surface Mount
• Pin Count: 8
• Architecture: Sectored
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 15 mA
• Mounting Style: SMD/SMT
• Organization: 64 KB x 16
• Ic Interface Type: Serial, SPI
• Clock Frequency: 50MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23. Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
23.1
23.2
40
SO (OUTPUT)
Main Memory Page Read
Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
SI (INPUT)
Atmel AT45DB081D
SO (OUTPUT)
SI (INPUT)
CS
CS
BUFFER 1 (256-/264-BYTES)
MAIN MEMORY
PAGE (256-/264-BYTES)
BUFFER 1
BUFFER 1
PAGE TO
CMD
READ
ADDRESS FOR BINARY PAGE SIZE
CMD
A19-A16
PA11-7
FLASH MEMORY ARRAY
PA6-0, BA8
A15-A8
I/O INTERFACE
PA11-7
SO
A7-A0
BA7-0
MAIN MEMORY
PAGE READ
A19-A8 + 8 DON'T CARE BITS
BINARY PAGE SIZE
BUFFER 2 (256-/264-BYTES)
4 Dummy Bytes for Serial
X
PA6-0, X
Starts reading page data into buffer
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2
READ
X
XXXX XXXX
n
n+1
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