AT45DB041D-MU Atmel, AT45DB041D-MU Datasheet - Page 41

• Manufacturer Part Number: AT45DB041D-MU
• Description: IC FLASH 4MBIT 66MHZ 8MLF
• Manufacturer: Atmel

Specifications of AT45DB041D-MU

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 4M (2048 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-VFQFN, 8-VFQFPN
• Density: 4Mb
• 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: MLF EP
• 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
• 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
3595P–DFLASH–09/09
SO (OUTPUT)
Main Memory Page Read
Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
SI (INPUT)
SO (OUTPUT)
SI (INPUT)
CS
CS
MAIN MEMORY
PAGE (256/264 BYTES)
BUFFER 1 (256/264 BYTES)
BUFFER 1
BUFFER 1
PAGE TO
CMD
READ
ADDRESS FOR BINARY PAGE SIZE
CMD
A18-A16
PA10-7
FLASH MEMORY ARRAY
PA6-0, BA8
A15-A8
I/O INTERFACE
PA10-7
SO
A7-A0
BA7-0
MAIN MEMORY
PAGE READ
A18-A8 + 8 DON'T CARE BITS
BINARY PAGE SIZE
BUFFER 2 (256/264 BYTES)
X
4 Dummy Bytes
PA6-0, X
Starts reading page data into buffer
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2
READ
X
XXXX XXXX
n
AT45DB041D
n+1
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