Data Sheet
16 Mbit Concurrent SuperFlash + 2/4 Mbit SRAM ComboMemory
SST34HF1621C / SST34HF1641C
Chip-Erase
Command Sequence
Load data: XXAAH
Address: 555H
Sector-Erase
Command Sequence
Load data: XXAAH
Address: 555H
Block-Erase
Command Sequence
Load data: XXAAH
Address: 555H
Load data: XX55H
Address: 2AAH
Load data: XX55H
Address: 2AAH
Load data: XX55H
Address: 2AAH
Load data: XX80H
Address: 555H
Load data: XX80H
Address: 555H
Load data: XX80H
Address: 555H
Load data: XXAAH
Address: 555H
Load data: XXAAH
Address: 555H
Load data: XXAAH
Address: 555H
Load data: XX55H
Address: 2AAH
Load data: XX55H
Address: 2AAH
Load data: XX55H
Address: 2AAH
Load data: XX10H
Address: 555H
Load data: XX30H
Address: SAX
Load data: XX50H
Address: BAX
Wait TSCE
Wait TSE
Wait TBE
Chip erased
to FFFFH
Sector erased
to FFFFH
Note: X can be VIL or VIH, but no other value.
Block erased
to FFFFH
1252 F25.1
FIGURE 28: Erase Command Sequence
©2006 Silicon Storage Technology, Inc.
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