M25PX16-VMN6TP NUMONYX, M25PX16-VMN6TP Datasheet - Page 38

• Manufacturer Part Number: M25PX16-VMN6TP
• Description: IC FLASH 16MBIT 75MHZ 8SOIC
• Manufacturer: NUMONYX
• Series: Forté™r

Specifications of M25PX16-VMN6TP

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 16M (2M x 8)
• Speed: 75MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: M25PX16-VMN6TPTR

38/65
may be read to check the value of the Write In Progress (WIP) bit. The Write In Progress
(WIP) bit is 1 during the self-timed Program OTP cycle, and it is 0 when it is completed. At
some unspecified time before the cycle is complete, the Write Enable Latch (WEL) bit is
reset.
To lock the OTP memory:
Bit 0 of the OTP control byte, that is byte 64, (see
OTP memory array.
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 20. Program OTP (POTP) instruction sequence
1. A23 to A7 are Don't care.
2. 1 ≤ n ≤ 65
S
C
DQ0
S
C
DQ0
When bits 3, 2, 1 and 0 of byte 64 = ’1’, the 64 bytes of the OTP memory array can be
programmed.
When bits 3, 2, 1, and 0 of byte 64 = ‘0’, the 64 bytes of the OTP memory array are
read-only and cannot be programmed anymore.
MSB
7
40
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
Figure
2
1
1
0
0
21) is used to permanently lock the
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