M25PE40 Numonyx, B.V., M25PE40 Datasheet - Page 17

• Manufacturer Part Number: M25PE40
• Description: 4 Mbit, page-erasable serial Flash memory with byte alterability, 75 MHz SPI bus, standard pinout
• Manufacturer: Numonyx, B.V.

M25PE40
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 4.
Sector Subsector
7
6
5
4
3
2
1
2048 pages (256 bytes each)
524,288 bytes (8 bits each)
128 subsectors (32 Kbits, 4096 bytes 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)
127
112
111
Memory organization
96
95
80
79
64
63
48
47
32
31
16
7F000h
70000h
6F000h
60000h
5F000h
50000h
4F000h
40000h
3F000h
30000h
2F000h
20000h
1F000h
10000h
Address range
7FFFFh
6FFFFh
5FFFFh
4FFFFh
3FFFFh
2FFFFh
1FFFFh
70FFFh
60FFFh
50FFFh
40FFFh
30FFFh
20FFFh
10FFFh
Sector Subsector
0
15
4
3
2
1
0
Memory organization
0F000h
04000h
03000h
02000h
01000h
00000h
Address range
0FFFFh
04FFFh
03FFFh
02FFFh
01FFFh
00FFFh
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