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

EN25F80

Rev. E, Issue Date: 2007/11/23

MEMORY ORGANIZATION

The memory is organized as:

1,048,576 bytes

Uniform Sector Architecture

16 blocks of 64-Kbyte

256 sectors of 4-Kbyte

4096 pages (256 bytes each)

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

Block

Sector

Address range

255

0FF000h

0FFFFFh

15

240

0F0000h

0F0FFFh

239

0EF000h

0EFFFFh

14

224

0E0000h

0E0FFFh

223

0DF000h

0DFFFFh

13

208

0D0000h

0D0FFFh

207

0CF000h

0CFFFFh

12

192

0C0000h

0C0FFFh

191

0BF000h

0BFFFFh

11

176

0B0000h

0B0FFFh

175

0AF000h

0AFFFFh

10

160

0A0000h

0A0FFFh

159

09F000h

09FFFFh

9

144

090000h

090FFFh

143

08F000h

08FFFFh

8

128

080000h

080FFFh

127

07F000h

07FFFFh

7

112

070000h

070FFFh

111

06F000h

06FFFFh

6

96

060000h

060FFFh

95

05F000h

05FFFFh

5

80

050000h

050FFFh

79

04F000h

04FFFFh

4

64

040000h

040FFFh

63

03F000h

03FFFFh

3

48

030000h

030FFFh

47

02F000h

02FFFFh

2

32

020000h

020FFFh

31

01F000h

01FFFFh

1

16

010000h

010FFFh

15

00F000h

00FFFFh

4

004000h

004FFFh

3

003000h

003FFFh

2

002000h

002FFFh

1

001000h

001FFFh

0

0

000000h

000FFFh