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25L1605 View Datasheet(PDF) - Macronix International

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Description
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25L1605 Datasheet PDF : 56 Pages
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MX25L1605D
MX25L3205D
MX25L6405D
(16) Read Electronic Manufacturer ID & Device ID (REMS), (REMS2)
The REMS & REMS2 instruction is an alternative to the Release from Power-down/Device ID instruction that provides
both the JEDEC assigned manufacturer ID and the specific device ID.
The REMS & REMS2 instruction is very similar to the Release from Power-down/Device ID instruction. The instruction
is initiated by driving the CS# pin low and shift the instruction code "90h" or "EFh" followed by two dummy bytes and one
bytes address (A7~A0). After which, the Manufacturer ID for MXIC (C2h) and the Device ID are shifted out on the falling
edge of SCLK with most significant bit (MSB) first as shown in figure 25. The Device ID values are listed in Table of ID
Definitions. If the one-byte address is initially set to 01h, then the device ID will be read first and then followed by the
Manufacturer ID. The Manufacturer and Device IDs can be read continuously, alternating from one to the other. The
instruction is completed by driving CS# high.
Table 7. ID Definitions
Command Type
MX25L1605D
RDID (JEDEC ID)
Manufacturer ID
C2
Memory type
20
RES
Electronic ID
14
REMS/REMS2 Manufacturer ID Device ID
C2
14
MX25L3205D
Memory Density Manufacturer ID Memory type
15
C2
20
Electronic ID
15
Manufacturer ID Device ID
C2
15
Memory Density
16
MX25L6405D
Manufacturer ID Memory type
C2
20
Electronic ID
16
Manufacturer ID Device ID
C2
16
Memory Density
17
(17) Enter Secured OTP (ENSO)
The ENSO instruction is for entering the additional 512-bit secured OTP mode. The additional 512-bit secured OTP is
independent from main array, which may use to store unique serial number for system identifier. After entering the Secured
OTP mode, and then follow standard read or program, procedure to read out the data or update data. The Secured OTP
data cannot be updated again once it is lock-down.
The sequence of issuing ENSO instruction is: CS# goes low-> sending ENSO instruction to enter Secured OTP mode
-> CS# goes high.
Please note that WRSR/WRSCUR commands are not acceptable during the access of secure OTP region, once security
OTP is lock down, only read related commands are valid.
(18) Exit Secured OTP (EXSO)
The EXSO instruction is for exiting the additional 512-bit secured OTP mode.
The sequence of issuing EXSO instruction is: CS# goes low-> sending EXSO instruction to exit Secured OTP mode->
CS# goes high.
P/N: PM1290
REV. 1.4, OCT. 01, 2008
25
 

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