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SST39VF6401B Datasheet(PDF) 13 Page - Microchip Technology |
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SST39VF6401B Datasheet(HTML) 13 Page - Microchip Technology |
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13 / 38 page  ©2015-2018 DS20005008C 13 64 Mbit Multi-Purpose Flash Plus SST39VF6401B / SST39VF6402B Not Recommended for New Designs Operations Table 5: Operation Modes Selection Mode CE# OE# WE# DQ Address Read VIL VIL VIH DOUT AIN Program VIL VIH VIL DIN AIN Erase VIL VIH VIL X1 1. X can be VIL or VIH, but no other value. Sector or block address, XXH for Chip-Erase Standby VIH X X High Z X Write Inhibit X VIL X High Z/ DOUT X XX VIH High Z/ DOUT X Product Identification Software Mode VIL VIL VIH See Table 6 T5.0 25008 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 1. Address format A10-A0 (Hex). Addresses A11- A21 can be VIL or VIH, but no other value, for Command sequence for SST39VF640xB. Data2 2. DQ15-DQ8 can be VIL or VIH, but no other value, for Command sequence Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Word-Program 555H AAH 2AAH 55H 555H A0H WA3 3. WA = Program Word address Data Sector-Erase 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SAX4 4. SAX for Sector-Erase; uses AMS-A11 address lines BAX, for Block-Erase; uses AMS-A15 address lines AMS = Most significant address AMS = A21 for SST39VF640xB 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 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 = 000010H to 000017H). Lock Status is read with A7-A0 = 0000FFH. Unlocked: DQ3 = 1 / Locked: DQ3 = 0. 555H AAH 2AAH 55H 555H 88H User Security ID Word-Program 555H AAH 2AAH 55H 555H A5H WA6 6. Valid Word-Addresses for Sec ID are from 000000H-000007H and 000010H-000017H. 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 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 25008 |
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