N25Q128A13BF840E NUMONYX, N25Q128A13BF840E Datasheet - Page 96

• Manufacturer Part Number: N25Q128A13BF840E
• Description: 128MBQUAD IO,XIP VDFPN 8X6 3VT&R
• Manufacturer: NUMONYX

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S
C
DQ0
S
C
DQ0
MSB
7
40
Once a bit of the OTP memory has been programmed to '0', it can no longer be set to '1'.
Therefore, as soon as bit 0 of byte 64 (control byte) is set to '0', the 64 bytes of the OTP
memory array become read-only in a permanent way.
Any Program OTP (POTP) instruction issued while an Erase, Program or Write cycle is in
progress is rejected without having any effect on the cycle that is in progress.
Figure 25. Program OTP instruction sequence
0
6
41
1
5
42
Data byte 2
2
Instruction
4
43 44 45 46 47 48 49 50
3
3
4
2
5
1
6
0
MSB
7
7
MSB
23
8
6
22 21
9 10
5
Data byte 3
24-bit address
4
51
3
52 53 54 55
3
28 29 30 31 32 33 34 35
2
2
1
1
0
0
MSB
7
MSB
7
6
6
5
Data byte 1
5
Data byte n
4
4
3
36 37 38
3
2
2
1
1
0
39
0
AI13575