AT45DB321D-SU Atmel, AT45DB321D-SU Datasheet - Page 41

• Manufacturer Part Number: AT45DB321D-SU
• Description: IC FLASH 32MBIT 66MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT45DB321D-SU

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 32M (8192 pages x 528 bytes)
• Speed: 66MHz
• Interface: SPI, RapidS
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• Package: 8SOIC EIAJ
• Density: 32 Mb
• Architecture: Sectored
• Block Organization: Symmetrical
• Typical Operating Supply Voltage: 3.3 V
• Sector Size: 64KByte x 64
• Timing Type: Synchronous
• Interface Type: Serial-SPI
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 15 mA
• Mounting Style: SMD/SMT
• Organization: 528 B x 8192
• Memory Configuration: 8192 Pages X 528 Bytes
• Clock Frequency: 66MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SOIC
• 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
3597O–DFLASH–10/09
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 (512/528 BYTES)
BUFFER 1 (512/528 BYTES)
BUFFER 1
BUFFER 1
PAGE TO
CMD
READ
ADDRESS FOR BINARY PAGE SIZE
CMD
A21-A16
PA12-6
PA5-0, BA9-8
FLASH MEMORY ARRAY
A15-A8
I/O INTERFACE
PA12-6
SO
A7-A0
BA7-0
MAIN MEMORY
PAGE READ
A21-A9 + 9 DON'T CARE BITS
BINARY PAGE SIZE
BUFFER 2 (512/528 BYTES)
X
4 Dummy Bytes
PA5-0, XX
Starts reading page data into buffer
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2
READ
X
XXXX XXXX
n
AT45DB321D
n+1
41