Protection modes
N25Q128 - 1.8 V
Table 10. Protected area sizes (TB bit = 0)
Status Register Content
Memory Content
Protected Area Unprotected Area
TB bit BP3 Bit PB2 Bit BP1 Bit BP0 Bit
0
0
0
0
0
0
0
0
0
1
None
All sectors (sectors 0 to 255)
Sectors 0 to 254
Upper 256th
(1/2 Mbit, sector 255)
Upper 128th
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
1
0
1
0
1
Sectors 0 to 253
Sectors 0 to 251
Sectors 0 to 247
Sectors 0 to 239
Sectors 0 to 223
(1 Mbit, 2 sectors: 254 to 255)
Upper 64th
(2 Mbit, 4 sectors: 252 to 255)
Upper 32nd
(4 Mbit, 8 sectors: 248 to 255)
Upper 16th
(8 Mbit, 16 sectors: 240 to 255)
Upper 8th
(16 Mbit, 32 sectors: 224 to 255)
Upper quarter
Lower 3 quarters (sectors 0 to
191)
(32 Mbit, 64 sectors: 193 to 255)
Upper half
0
1
0
0
0
Lower half (sectors 0 to 127)
(64 Mbit, 128 sectors: 128 to
255)
All sectors
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
None
None
None
None
None
None
None
(128 Mbit, 256 sectors)
All sectors
(128 Mbit, 256 sectors)
All sectors
(128 Mbit, 256 sectors)
All sectors
(128 Mbit, 256 sectors)
All sectors
(128 Mbit, 256 sectors)
All sectors
(128 Mbit, 256 sectors)
All sectors
(128 Mbit, 256 sectors)
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