SST29VE020-120-4C-NN データシートの表示（PDF） - Silicon Storage Technology

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SST29VE020-120-4C-NN

2 Mbit (256K x8) Page-Mode EEPROM

Silicon Storage Technology 

2 Mbit Page-Mode EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Data Sheet

Software Data Protect Enable

Command Sequence

Write data: AAH

Address: 5555H

Software Data Protect

Disable Command Sequence

Write data: AAH

Address: 5555H

Write data: 55H

Address: 2AAAH

Write data: 55H

Address: 2AAAH

Write data: A0H

Address: 5555H

Write data: 80H

Address: 5555H

Load 0 to

128 Bytes of

page data

Wait TBLCO

Wait TWC

Optional Page Load

Operation

Write data: AAH

Address: 5555H

Write data: 55H

Address: 2AAAH

Write data: 20H

Address: 5555H

SDP Enabled

Wait TBLCO

Wait TWC

FIGURE 17: SOFTWARE DATA PROTECTION FLOWCHARTS

©2001 Silicon Storage Technology, Inc.

20

SDP Disabled

307 ILL F16.1

S71062-06-000 6/01 307

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