MX25L3235EM2I10G datasheet(11/87 Pages) MCNIX

Part #	MX25L3235EM2I10G

Description	32M-BIT [x 1/x 2/x 4] CMOS MXSMIO (SERIAL MULTI I/O) FLASH MEMORY

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Manufacturer	MCNIX [Macronix International]

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11

MX25L3235E

P/N: PM1773

REV. 1.5, NOV. 06, 2013

II. Additional 4K-bit secured OTP for unique identifier: to provide 4K-bit One-Time Program area for setting

device unique serial number - Which may be set by factory or system maker.

- Security register bit 0 indicates whether the chip is locked by factory or not.

- To program the 4K-bit secured OTP by entering 4K-bit secured OTP mode (with ENSO command), and

going through normal program procedure, and then exiting 4K-bit secured OTP mode by writing EXSO com-

mand.

- Customer may lock-down the customer lockable secured OTP by writing WRSCUR(write security register)

command to set customer lock-down bit1 as "1". Please refer to table of "Table 8. Security Register Defini-

tion" for security register bit definition and table of "Table 3. 4K-bit Secured OTP Definition" for address range

definition.

Note: Once lock-down whatever by factory or customer, it cannot be changed any more. While in 4K-bit Secured

OTP mode, array access is not allowed.

Table 3. 4K-bit Secured OTP Definition

Address range

Size

Standard Factory Lock

Customer Lock

xxx000~xxx00F

128-bit

ESN (electrical serial number)

Determined by customer

xxx010~xxx1FF

3968-bit

N/A

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