N25Q128A13B1240E NUMONYX, N25Q128A13B1240E Datasheet - Page 86
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N25Q128A13B1240E
Manufacturer Part Number
N25Q128A13B1240E
Description
SERIAL NOR, 128MB
Manufacturer
NUMONYX
Datasheet
1.N25Q128A13BSF40G.pdf
(180 pages)
- Current page: 86 of 180
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9.1.8
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DQ0
DQ3
DQ1
DQ2
C
S
Mode 3
Mode 0
Figure 16. Quad Input/ Output Fast Read instruction sequence
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, fCmax, on the falling edge of Serial Clock
(C). The instruction sequence is shown in Figure 17.
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. All other
bytes outside the OTP area are “Don’t Care.”
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.
0
‘1’
Don’t Care
Don’t Care
1
2
Instruction
3
4
5
6
7
A23-16 A15-8 A7-0
4
5
6
7
8
2
3
0
1
9 10 11 12 13 14
4
5
6
7
2
3
0
1
6
7
4
5
0
1
2
3
Dummy (ex.: 10)
15 16
21 22 23
Byte 1
24
6
7
4
5
IO switches from Input to Output
Quad_IO_Fast_Read
25
1
2
3
0
26
Byte 2
6
7
4
5
27
1
2
3
0
7
4
5
6
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