SST32HF1641 查看數據表（PDF） - Silicon Storage Technology
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SST32HF1641 Datasheet PDF : 36 Pages
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Multi-Purpose Flash Plus + SRAM ComboMemory
SST32HF1641 / SST32HF1681 / SST32HF3241 / SST32HF3281
SST32HF1621C / SST32HF1641C / SST32HF3241C
Preliminary Specifications
TABLE 5: 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
5555H AAH 2AAAH 55H 5555H A0H WA3 Data
Sector-Erase
Block-Erase
Chip-Erase
5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H SAX4 30H
5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H BAX4 50H
5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H 10H
Erase-Suspend
XXXXH B0H
Erase-Resume
XXXXH 30H
Query Sec ID5
5555H AAH 2AAAH 55H 5555H 88H
User Security ID
Word-Program
User Security ID
Program Lock-Out
Software ID Entry7,8
5555H
5555H
5555H
AAH 2AAAH
AAH 2AAAH
AAH 2AAAH
55H 5555H A5H
55H 5555H 85H
55H 5555H 90H
WA6 Data
XXH6 0000H
Software ID Exit9,10 5555H AAH 2AAAH 55H 5555H F0H
/Sec ID Exit
Software ID Exit9,10
/Sec ID Exit
XXH
F0H
T5.2 1236
1. Address format A14-A0 (Hex).
Addresses A15-A19 can be VIL or VIH, but no other value, for Command sequence for SST32HF16x1x,
Addresses A15-A20 can be VIL or VIH, but no other value, for Command sequence for SST32HF32x1x.
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 = A19 for SST32HF16x1x and A20 for SST32HF32x1x.
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.
6. Valid Word-Addresses for Sec ID are from 000000H-000007H and 000010H-000017H.
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,
SST32HF16x1x Device ID = 234BH, is read with A0 = 1,
SST32HF32x1x Device ID = 235BH, is read with A0 = 1,
AMS = Most significant address
AMS = A19 for SST32HF16x1x and A20 for SST32HF32x1x.
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
000010H-000017H.
©2005 Silicon Storage Technology, Inc.
10
S71236-04-000
5/05
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