AT25DF041A-MU ATMEL [ATMEL Corporation], AT25DF041A-MU Datasheet - Page 4
AT25DF041A-MU
Manufacturer Part Number
AT25DF041A-MU
Description
4-megabit 2.7-volt Only Serial Firmware DataFlash Memory
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT25DF041A-MU.pdf
(41 pages)
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3. Block Diagram
4. Memory Array
4
SCK
WP
AT25DF041A
SO
CS
SI
INTERFACE
CONTROL
To provide the greatest flexibility, the memory array of the AT25DF041A can be erased in four
levels of granularity including a full chip erase. In addition, the array has been divided into phys-
ical sectors of various sizes, of which each sector can be individually protected from program
and erase operations. The sizes of the physical sectors are optimized for both code and data
storage applications, allowing both code and data segments to reside in their own isolated
regions.
down of each physical sector.
LOGIC
AND
Figure 4-1 on page 5
PROTECTION LOGIC
CONTROL AND
illustrates the breakdown of each erase level as well as the break-
Y-DECODER
X-DECODER
AND LATCHES
I/O BUFFERS
Y-GATING
MEMORY
ARRAY
FLASH
DATA BUFFER
SRAM
3668A–DFLASH–03/07
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