EN25B40 Datasheet, PDF (4/36 Pages) Eon Silicon Solution Inc. – 4 Mbit Serial Flash Memory with Boot and Parameter Sectors

EN25B40
MEMORY ORGANIZATION
The memory is organized as:
z 524,288 bytes
z Flexible Sector Architecture
Two 4-Kbyte, one 8-Kbyte, one 16-Kbyte,one 32-Kbyte, and seven 64-Kbyte sectors
z Bottom or top boot configurations
z 2048 pages (256 bytes each)
Each page can be individually programmed (bits are programmed from 1 to 0). The device is Sector or
Bulk Erasable but not Page Erasable.
Table 2a. Bottom Boot Block Sector Architecture
Sector
11
10
9
8
7
6
5
4
3
2
1
0
SECTOR SIZE (KByte)
64
64
64
64
64
64
64
32
16
8
4
4
Address range
70000h – 7FFFFh
60000h – 6FFFFh
50000h – 5FFFFh
40000h – 4FFFFh
30000h – 3FFFFh
20000h – 2FFFFh
10000h – 1FFFFh
08000h – 0FFFFh
04000h – 07FFFh
02000h – 03FFFh
01000h – 01FFFh
00000h – 00FFFh
This Data Sheet may be revised by subsequent versions
4
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. E, Issue Date: 2007/5/3