SST39VF6401B Datasheet, PDF (13/36 Pages) Silicon Storage Technology, Inc – 64 Mbit (x16) Multi-Purpose Flash Plus

64 Mbit Multi-Purpose Flash Plus
SST39VF6401B / SST39VF6402B
Operations
Not Recommended for New Designs
Table 5: Operation Modes Selection
Mode
Read
Program
Erase
CE#
V_IL
V_IL
V_IL
OE#
V_IL
V_IH
V_IH
WE#
V_IH
V_IL
V_IL
DQ
D_OUT
D_IN
X¹
Standby
Write Inhibit
Product Identification
Software Mode
V_IH
X
X
V_IL
X
X
V_IL
V_IL
1. X can be V_IL or V_IH, but no other value.
X High Z
X High Z/ D_OUT
V_IH High Z/ D_OUT
V_IH
Address
A_IN
A_IN
Sector or block address,
XXH for Chip-Erase
X
X
X
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 Data² Addr¹ Data² Addr¹ Data² Addr¹ Data² Addr¹ Data² Addr¹ Data²
Word-Program
555H AAH 2AAH 55H 555H A0H WA³ Data
Sector-Erase
Block-Erase
Chip-Erase
555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SA_X4 50H
555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H BA_X4 30H
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
User Security ID
Program Lock-Out
555H AAH 2AAH 55H 555H A5H WA⁶ Data
555H AAH 2AAH 55H 555H 85H XXH⁶ 0000H
Software ID Entry^7,8 555H AAH 2AAH 55H 555H 90H
CFI Query Entry
555H AAH 2AAH 55H 555H 98H
Software ID Exit^9,10 555H AAH 2AAH 55H 555H F0H
/CFI Exit/Sec ID Exit
Software ID Exit^9,10 XXH F0H
/CFI Exit/Sec ID Exit
1. Address format A₁₀-A₀ (Hex).
Addresses A₁₁- A₂₁ can be V_IL or V_IH, but no other value, for Command sequence for SST39VF640xB.
2. DQ₁₅-DQ₈ can be V_IL or V_IH, but no other value, for Command sequence
3. WA = Program Word address
4. SA_X for Sector-Erase; uses A_MS-A₁₁ address lines
BA_X, for Block-Erase; uses A_MS-A₁₅ address lines
A_MS = Most significant address
A_MS = A₂₁ for SST39VF640xB
5. With A_MS-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.
T6.0 25008
© 2015
DS20005008B
08/15
13