M25PX32-VMF6E NUMONYX, M25PX32-VMF6E Datasheet - Page 37

• Manufacturer Part Number: M25PX32-VMF6E
• Manufacturer: NUMONYX

Specifications of M25PX32-VMF6E

• Cell Type: NOR
• Density: 32Mb
• Access Time (max): 8ns
• Interface Type: Serial (SPI)
• Boot Type: Not Required
• Address Bus: 1b
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: SOIC W
• Sync/async: Synchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8b
• Number Of Words: 4M
• Supply Current: 12mA
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Compliant

6.10
Read OTP (ROTP)
The device is first selected by driving Chip Select (S) Low. The instruction code for the Read
OTP (ROTP) instruction is followed by a 3-byte address (A23- A0) and a dummy byte. Each
bit is latched in on the rising edge of Serial Clock (C).
Then the memory contents at that address are shifted out on Serial Data output (DQ1).
Each bit is shifted out at the maximum frequency, f
(C). The instruction sequence is shown in
The address is automatically incremented to the next higher address after each byte of data
is shifted out.
There is no rollover mechanism with the Read OTP (ROTP) instruction. This means that the
Read OTP (ROTP) instruction must be sent with a maximum of 65 bytes to read, since once
the 65
The Read OTP (ROTP) instruction is terminated by driving Chip Select (S) High. Chip
Select (S) can be driven High at any time during data output. Any Read OTP (ROTP)
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 18. Read OTP (ROTP) instruction and data-out sequence
1. A23 to A7 are Don't care.
2. 1 ≤ n ≤ 65.
DQ0
DQ1
DQ0
DQ1
C
S
S
C
th
byte has been read, the same (65
7
32 33 34
0
6
1
High Impedance
Dummy byte
5
2
Instruction
4
35
3
3
36 37 38 39 40 41 42 43 44 45 46
4
2
5
1
6
0
MSB
7
7
23
8
6
22 21
9 10
DATA OUT 1
5
24-bit address
Figure
th
) byte keeps being read on the DQ1 pin.
4
3
3
28 29 30 31
18.
2
2
C
max, on the falling edge of Serial Clock
1
1
0
47
0
MSB
7
6
DATA OUT n
5
4
3
2
1
0
MSB
AI13573
7
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