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SST39VF3201B Datasheet(PDF) 9 Page - Microchip Technology |
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SST39VF3201B Datasheet(HTML) 9 Page - Microchip Technology |
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9 / 29 page  Data Sheet 32 Mbit Multi-Purpose Flash Plus SST39VF3201B / SST39VF3202B 9 ©2009 Silicon Storage Technology, Inc. S71384-01-000 1/09 TABLE 6: Software Command Sequence Command Sequence 1st Bus Write Cycle 2nd Bus Write Cycle 3rd Bus Write Cycle 4th Bus Write Cycle 5th Bus Write Cycle 6th Bus Write Cycle Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Word-Program 555H AAH 2AAH 55H 555H A0H WA3 Data Sector-Erase 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SAX4 50H Block-Erase 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H BAX4 30H Chip-Erase 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H Erase-Suspend XXXXH B0H Erase-Resume XXXXH 30H Query Sec ID5 555H AAH 2AAH 55H 555H 88H User Security ID Word-Program 555H AAH 2AAH 55H 555H A5H WA6 Data User Security ID Program Lock-Out 555H AAH 2AAH 55H 555H 85H XXH6 0000H Software ID Entry7,8 555H AAH 2AAH 55H 555H 90H CFI Query Entry 555H AAH 2AAH 55H 555H 98H CFI Query Entry 55H 98H Software ID Exit9,10 /CFI Exit/Sec ID Exit 555H AAH 2AAH 55H 555H F0H Software ID Exit9,10 /CFI Exit/Sec ID Exit XXH F0H T6.0 1384 1. Address format A10-A0 (Hex). Addresses A11- A20 can be VIL or VIH, but no other value, for Command sequence for SST39VF320xB. 2. DQ15-DQ8 can be VIL or VIH, but no other value, for Command sequence 3. WA = Program Word address 4. SAX for Sector-Erase; uses AMS-A11 address lines BAX, for Block-Erase; uses AMS-A15 address lines AMS = Most significant address AMS = A20 for SST39VF320xB 5. With AMS-A4 = 0; Sec ID is read with A3-A0, SST ID is read with A3 = 0 (Address range = 000000H to 000007H), User ID is read with A3 = 1 (Address range = 000008H to 000087H). Lock Status is read with A7-A0 = 0000FFH. Unlocked: DQ3 = 1 / Locked: DQ3 = 0. 6. Valid Word-Addresses for Sec ID are from 000000H-000007H and 000008H to 000087H. 7. The device does not remain in Software Product ID Mode if powered down. 8. With AMS-A1 =0; SST Manufacturer ID = 00BFH, is read with A0 = 0, SST39VF3201B Device ID = 235DH, is read with A0 = 1, SST39VF3202B Device ID = 235CH, is read with A0 = 1. AMS = Most significant address AMS = A20 for SST39VF320xB 9. Both Software ID Exit operations are equivalent 10. If users never lock after programming, Sec ID can be programmed over the previously unprogrammed bits (data=1) using the Sec ID mode again (the programmed “0” bits cannot be reversed to “1”). Valid Word-Addresses for Sec ID are from 000000H-000007H and 000008H to 000087H. |
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