N25Q064A13EF640F Micron Technology Inc, N25Q064A13EF640F Datasheet - Page 73
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N25Q064A13EF640F
Manufacturer Part Number
N25Q064A13EF640F
Description
Manufacturer
Micron Technology Inc
Datasheet
1.N25Q064A13EF640F.pdf
(150 pages)
Specifications of N25Q064A13EF640F
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N25Q064 - 3 V
S
C
DQ0
S
C
DQ0
Byte
0
Byte
1
MSB
7
40
Byte
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 26. Program OTP instruction sequence
Figure 27. How to permanently lock the OTP bytes
2
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
64 data bytes
MSB
23
8
6
22 21
9 10
Bit 1 to bit 7 are not programmable
5
Data byte 3
X
24-bit address
4
51
X
3
52 53 54 55
Micron Technology, Inc., reserves the right to change products or specifications without notice.
3
28 29 30 31 32 33 34 35
2
X
2
1
X
1
0
0
X
MSB
7
MSB
7
X
6
6
X
5
Data byte 1
5
Data byte n
©2010 Micron Technology, Inc. All rights reserved.
4
bit 0
4
3
36 37 38
OTP control byte
3
When bit 0 = 0
the 64 OTP bytes
become read only
Byte
2
63
2
1
ai13587
Byte
1
64
0
39
Instructions
0
AI13575
73/150
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