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MX25U4033E Datasheet(PDF) 16 Page - Macronix International |
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MX25U4033E Datasheet(HTML) 16 Page - Macronix International |
16 / 68 page ![]() 16 MX25U4033E 16 P/N: PM1755 REV. 1.5, NOV. 14, 2013 Note 1: ADD=00H will output the manufacturer ID first and ADD=01H will output device ID first. 2: It is not recommended to adopt any other code not in the command definition table, which will potentially enter the hidden mode. Command (byte) RDID (read identific- ation) RES (read electronic ID) REMS (read electronic manufacturer & device ID) REMS2 (read ID for 2x I/O mode) REMS4 (read ID for 4x I/O mode) ENSO (enter secured OTP) EXSO (exit secured OTP) 1st byte 9F (hex) AB (hex) 90 (hex) EF (hex) DF (hex) B1 (hex) C1 (hex) 2nd byte x x X x 3rd byte x x X x 4th byte x ADD ADD ADD Action outputs JEDEC ID: 1-byte Manufacturer ID & 2-byte Device ID to read out 1-byte Device ID output the Manufacturer ID & Device ID output the Manufacturer ID & Device ID output the Manufacturer ID & Device ID to enter the 4K-bit secured OTP mode to exit the 4K-bit secured OTP mode Command (byte) RDSCUR (read security register) WRSCUR (write security register) SBLK (single block lock SBULK (single block unlock) RDBLOCK (block protect read) GBLK (gang block lock) GBULK (gang block unlock) 1st byte 2B (hex) 2F (hex) 36 (hex) 39 (hex) 3C (hex) 7E (hex) 98 (hex) 2nd byte AD1 AD1 AD1 3rd byte AD2 AD2 AD2 4th byte AD3 AD3 AD3 Action to read value of security register to set the lock- down bit as "1" (once lock- down, cannot be update) individual block (64K-byte) or sector (4K-byte) write protect individual block (64K-byte) or sector (4K-byte) unprotect read individual block or sector write protect status whole chip write protect whole chip unprotect Security/ID/Mode Setting/Reset Commands Command (byte) WPSEL (Write Protect Selection) 1st byte 68 (hex) 2nd byte 3rd byte 4th byte Action to enter and enable individal block protect mode |
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