AT45DB642D-CNU SL954 Atmel, AT45DB642D-CNU SL954 Datasheet - Page 49

• Manufacturer Part Number: AT45DB642D-CNU SL954
• Manufacturer: Atmel

Specifications of AT45DB642D-CNU SL954

• Density: 64Mb
• Access Time (max): 6ns
• Interface Type: Parallel/Serial-SPI
• Address Bus: 1/8Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: CASON
• 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
• Word Size: 8b
• Number Of Words: 8M
• Supply Current: 15mA
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / Rohs Status: 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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