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M45PE40 Datasheet(PDF) 9 Page - STMicroelectronics

Part No. M45PE40
Description  4 Mbit, Low Voltage, Page-Erasable Serial Flash Memory With Byte-Alterability and a 33 MHz SPI Bus Interface
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M45PE40 Datasheet(HTML) 9 Page - STMicroelectronics

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M45PE40
MEMORY ORGANIZATION
The memory is organized as:
2048 pages (256 bytes each).
524288 bytes (8 bits each)
8 sectors (512 Kbits, 65536 bytes each)
Each page can be individually:
programmed (bits are programmed from 1 to
0)
erased (bits are erased from 0 to 1)
written (bits are changed to either 0 or 1)
The device is Page or Sector Erasable (bits are
erased from 0 to 1).
Table 3. Memory Organization
Sector
Address Range
7
70000h
7FFFFh
6
60000h
6FFFFh
5
50000h
5FFFFh
4
40000h
4FFFFh
3
30000h
3FFFFh
2
20000h
2FFFFh
1
10000h
1FFFFh
0
00000h
0FFFFh


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