N25Q128A13ESE40G Datasheet, PDF (55/81 Pages) Micron Technology – Micron Serial NOR Flash Memory 3V, Multiple I/O, 4KB Sector Erase N25Q128A

128Mb, 3V, Multiple I/O Serial Flash Memory
ONE TIME PROGRAMMABLE Operations
PROGRAM OTP ARRAY programs, at most, 64 bytes to the OTP memory area and one
OTP control byte. When the operation is in progress, the write in progress bit is set to 1.
The write enable latch bit is cleared to 0, whether the operation is successful or not, and
the status register and flag status register can be polled for the operation status. When
the operation completes, the write in progress bit is cleared to 0.
If the operation times out, the write enable latch bit is reset and the program fail bit is
set to 1. If S# is not driven HIGH, the command is not executed, flag status register error
bits are not set, and the write enable latch remains set to 1.
The OTP control byte (byte 64) is used to permanently lock the OTP memory array.
Table 27: OTP Control Byte (Byte 64)
Bit Name
0 OTP control byte
Settings
0 = Locked
1 = Unlocked
(Default)
Description
Used to permanently lock the OTP array (byte 64). When bit 0 = 1, the
OTP array can be programmed. When bit 0 = 0, the OTP array is read only.
Once bit 0 has been programmed to 0, it can no longer be changed to 1.
PROGRAM OTP ARRAY is ignored, write enable latch bit remains set, and
flag status register bits 1 and 4 are set.
PDF: 09005aef845665fe
n25q_128mb_3v_65nm.pdf - Rev. P 06/13 EN
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