m45pe40 STMicroelectronics, m45pe40 Datasheet - Page 15

• Manufacturer Part Number: m45pe40
• Description: 4 Mbit, Low Voltage, Page-erasable Serial Flash Memory With Byte-alterability And A 50 Mhz Spi Bus Interface
• Manufacturer: STMicroelectronics

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