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W49F002U-70B Datasheet(PDF) 6 Page - Winbond |
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W49F002U-70B Datasheet(HTML) 6 Page - Winbond |
6 / 23 page W49F002U - 6 - TABLE OF COMMAND DEFINITION (1) COMMAND NO. OF 1ST CYCLE 2ND CYCLE 3RD CYCLE 4TH CYCLE 5TH CYCLE 6TH CYCLE DESCRIPTION Cycles Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Read 1 AIN DOUT Chip Erase 6 5555 AA 2AAA 55 5555 80 5555 AA 2AAA 55 5555 10 Sector Erase 6 5555 AA 2AAA 55 5555 80 5555 AA 2AAA 55 SA (3) 30 Byte Program 4 5555 AA 2AAA 55 5555 A0 AIN DIN Boot Block Lockout 6 5555 AA 2AAA 55 5555 80 5555 AA 2AAA 55 5555 40 Product ID Entry 3 5555 AA 2AAA 55 5555 90 Product ID Exit (2) 3 5555 AA 2AAA 55 5555 F0 Product ID Exit (2) 1 XXXX F0 Notes: 1. Address Format: A14 −A0 (Hex); Data Format: DQ7-DQ0 (Hex) 2. Either one of the two Product ID Exit commands can be used. 3. SA means: Sector Address If SA is within 3C000 to 3FFFF (Boot Block address range), and the Boot Block programming lockout feature is activated, nothing will happen and the device will go back to read mode after 100nS. If the Boot Block programming lockout feature is not activated, this command will erase Boot Block. If SA is within 3A000 to 3BFFF (Parameter Block1 address range), this command will erase PB1. If SA is within 38000 to 39FFF (Parameter Block2 address range), this command will erase PB2. If SA is within 20000 to 37FFF (Main Memory Block1 address range), this command will erase MMB1. If SA is within 00000 to 1FFFF (Main Memory Block2 address range), this command will erase MMB2. |
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