AT45DB642D-CNU Atmel, AT45DB642D-CNU Datasheet - Page 49

• Manufacturer Part Number: AT45DB642D-CNU
• Description: IC FLASH 64MBIT 66MHZ 8CASON
• Manufacturer: Atmel

Specifications of AT45DB642D-CNU

• 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: 8-CASON
• Package: 8CASON
• Density: 64 Mb
• Architecture: Sectored
• Block Organization: Symmetrical
• Typical Operating Supply Voltage: 3.3 V
• Sector Size: 256KByte x 32
• Timing Type: Synchronous
• Interface Type: Parallel|Serial-SPI
• Data Bus Width: 8 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 15 mA
• Mounting Style: SMD/SMT
• Organization: 256 KB x 32
• Ic Interface Type: Parallel, Serial
• Clock Frequency: 66MHz
• Supply Voltage Range: 2.7V To 3.6V
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

25.4
26. Auto Page Rewrite Flowchart
Figure 26-1. Algorithm for Programming or Reprogramming of the Entire Array Sequentially
Notes:
3542K–DFLASH–04/09
Status Register Read (Opcode: D7H)
1. This type of algorithm is used for applications in which the entire array is programmed sequentially, filling the array page-by-
2. A page can be written using either a Main Memory Page Program operation or a Buffer Write operation followed by a Buffer
3. The algorithm above shows the programming of a single page. The algorithm will be repeated sequentially for each page
page.
to Main Memory Page Program operation.
within the entire array.
MAIN MEMORY PAGE PROGRAM
(OUTPUT)
THROUGH BUFFER
I/O7-I/O0
I/O7-I/O0
(INPUT)
CLK
(82H, 85H)
CS
IMPEDANCE
t
SU
HIGH
CMD
0
X
1
t
STATUS REGISTER
V
START
X
2
END
OUTPUT
DATA
provide address
3
and data
MEMORY PAGE PROGRAM
BUFFER TO MAIN
BUFFER WRITE
(84H, 87H)
(83H, 86H)
DATA
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