This Data Sheet may be revised by subsequent versions

©2004 Eon Silicon Solution, Inc., www.essi.com.tw

or modifications due to changes in technical specifications.

4

EN25B10

Rev. B, Issue Date: 2006/12/26

MEMORY ORGANIZATION

The memory is organized as:

131,072 bytes

Flexible Sector Architecture

Two 4-Kbyte, one 8-Kbyte, one 16-Kbyte,three 32-Kbyte sectors

Bottom or top boot configurations

512 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

SECTOR SIZE (KByte)

Address range

6

32

18000h – 1FFFFh

5

32

10000h – 17FFFh

4

32

08000h – 0FFFFh

3

16

04000h – 07FFFh

2

8

02000h – 03FFFh

1

4

01000h – 01FFFh

0

4

00000h – 00FFFh

Table 2b. Top Boot Block Sector Architecture (Special order)

Sector

SECTOR SIZE (KByte)

Address range

6

4

1F000h – 1FFFFh

5

4

1E000h – 1EFFFh

4

8

1C000h – 1DFFFh

3

16

18000h – 1BFFFh

2

32

10000h – 17FFFh

1

32

08000h – 0FFFFh

0

32

00000h – 07FFFh