M25PE20, M25PE10
Memory organization
5
Memory organization
The M25PE20 memory is organized as:
●
●
●
●
1024 pages (256 bytes each).
262,144 bytes (8 bits each)
64 subsectors (32 Kbits, 4,096 bytes each)
4 sectors (512 Kbits, 65,536 bytes each)
The M25PE10 memory is organized as:
●
●
●
●
512 pages (256 bytes each).
131,074 bytes (8 bits each)
32 subsectors (32 Kbits, 4,096 bytes each)
2 sectors (512 Kbits, 65,536 bytes each)
In the M25PE20 and M25PE10, 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 5.
Sector
M25PE20 memory organization
Subsector
Address range
63
3F000h
3FFFFh
3
2
1
48
47
30000h
2F000h
30FFFh
2FFFFh
32
31
20000h
1F000h
20FFFh
1FFFFh
16
15
10000h
0F000h
10FFFh
0FFFFh
4
3
2
1
0
04000h
03000h
02000h
01000h
00000h
04FFFh
03FFFh
02FFFh
01FFFh
00FFFh
0
17/64
NUMONYX [ NUMONYX B.V ]
