AT45DB642D-CU Atmel, AT45DB642D-CU Datasheet - Page 41

• Manufacturer Part Number: AT45DB642D-CU
• Description: IC FLASH MEM 64MBIT 66MHZ 24BGA
• Manufacturer: Atmel

Specifications of AT45DB642D-CU

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 64M (8192 pages x 1056 bytes)
• Speed: 66MHz
• Interface: Parallel/Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-CBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.10 Command Sequence for Read/Write Operations for Page Size 1024 Bytes (Except Status
21.11 Command Sequence for Read/Write Operations for Page Size 1056 Bytes (Except Status
22. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
3542K–DFLASH–04/09
Register Read, Manufacturer and Device ID Read)
Register Read, Manufacturer and Device ID Read)
SI or I/O7 - I/O0
SI or I/O7 - I/O0
MSB
(INPUT)?
MSB
(INPUT)?
BUFFER 1 (1024/1056 BYTES)
PAGE PROGRAM
MAIN MEMORY
PAGE (1024/1056 BYTES)
BUFFER 1 TO
X X X X X X X X
BUFFER 1
Page Address
(PA12 - PA0)
X X X X X X X
WRITE
Page Address
CMD
(A22 - A10)
SI
CMD
FLASH MEMORY ARRAY
X X X X X X X X
8 bits
X X X X X X X X
I/O INTERFACE
8 bits
8 bits
(BA10 - BA0/BFA10 - BFA0)
8 bits
Byte/Buffer Address
(A9 - A0/BFA9 - BFA0)
BUFFER 2 (1024/1056 BYTES)
I/O7 - I/O0
Byte/Buffer Address
8 bits
X X X X X X X X
8 bits
X X X X X X X X
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2
WRITE
LSB
LSB
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