EN25S20
MEMORY ORGANIZATION
The memory is organized as:
z
z
262,144 bytes
Uniform Sector Architecture
4 blocks of 64-Kbyte
64 sectors of 4-Kbyte
1024 pages (256 bytes each)
z
Each page can be individually programmed (bits are programmed from 1 to 0). The device is Sector,
Block or Chip Erasable but not Page Erasable.
Table 2. Uniform Block Sector Architecture
Sector
63
62
61
60
Address range
Block
03F000h
03E000h
03D000h
03C000h
03B000h
03FFFFh
03EFFFh
03DFFFh
03CFFFh
03BFFFh
3
59
48
47
030000h
02F000h
030FFFh
02FFFFh
2
1
32
31
020000h
01F000h
020FFFh
01FFFFh
16
15
010000h
00F000h
010FFFh
00FFFFh
4
3
2
1
0
004000h
003000h
002000h
001000h
000000h
004FFFh
003FFFh
002FFFh
001FFFh
000FFFh
0
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
5
Rev. H, Issue Date: 2011/11/07
EON [ EON SILICON SOLUTION INC. ]
