AM29LV033C datasheet(16/49 Pages) AMD

16 / 49 page

Am29LV033C

22268B5 September 12, 2006

DA TA

SH EET

Table 4.

Sector Block Addresses for

Protection/Unprotection

Temporary Sector/Sector Block Unprotect

(Note: For the following discussion, the term “sector”

applies to both sectors and sector blocks. A sector

block consists of two or more adjacent sectors that are

protected or unprotected at the same time (see

Table 4, on page 16).

This feature allows temporary unprotection of previ-

ously protected sectors to change data in-system. The

Sector Unprotect mode is activated by setting the RE-

SET# pin to V

ID. During this mode, formerly protected

sectors can be programmed or erased by selecting the

sector addresses. Once V

ID is removed from the RE-

SET# pin, all the previously protected sectors are

protected again. Figure 1, on page 16 shows the algo-

rithm, and Figure 21, on page 40 shows the timing dia-

grams, for this feature.

Figure 1.

Temporary Sector Unprotect Operation

Sector/

Sector Block

A21–A16

Sector/

Sector Block Size

SA0

000000

64 Kbytes

SA1-SA3

000001,000010,

000011

192 (3x64) Kbytes

SA4-SA7

000100, 000101,

000110, 000111

256 (4x64) Kbytes

SA8-SA11

001000, 001001,

001010, 001011

256 (4x64) Kbytes

SA12-SA15

001100, 001101,

001110, 001111

256 (4x64) Kbytes

SA16-SA19

010000, 010001,

010010, 010011

256 (4x64) Kbytes

SA20-SA23

010100, 010101,

010110, 010111

256 (4x64) Kbytes

SA24-SA27

011000, 011001,

011010, 011011

256 (4x64) Kbytes

SA28-SA31

011100, 011101,

011110, 011111

256 (4x64) Kbytes

SA32-SA35

100000, 100001,

100010, 100011

256 (4x64) Kbytes

SA36-SA39

100100, 100101,

100110, 100111

256 (4x64) Kbytes

SA40-SA43

101000, 101001,

101010, 101011

256 (4x64) Kbytes

SA44-SA47

101100, 101101,

101110, 101111

256 (4x64) Kbytes

SA48-SA51

110000, 110001,

110010, 110011

256 (4x64) Kbytes

SA52-SA55

110100, 110101,

110110, 110111

256 (4x64) Kbytes

SA56-SA59

111000, 111001,

111010, 111011

256 (4x64) Kbytes

SA60-SA62

111100, 111101,

111110

192 (4x64) Kbytes

SA63

111111

64 Kbytes

START

Perform Erase or

Program Operations

RESET# = V

Temporary Sector

Unprotect Completed

(Note 2)

RESET# = V

(Note 1)

Notes:

1. All protected sectors unprotected.

2. All previously protected sectors are protected once

again.

AM29LV033C 数据表(PDF) 16 Page - Advanced Micro Devices

AM29LV033C 数据表(HTML) 16 Page - Advanced Micro Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

数据表下载

链接网址

AM29LV033C 数据表(PDF) 16 Page - Advanced Micro Devices

AM29LV033C 数据表(HTML) 16 Page - Advanced Micro Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

数据表 下载

链接网址

数据表下载