HY29F040A Datasheet, PDF (15/40 Pages) Hynix Semiconductor – 512K x 8-bit CMOS 5.0 volt-only, Sector Erase Flash Memory

S t a rt
W rite Erase Com m and Sequ ence
(see below)
/Data Polling or Toggle Bit
S uccessfu lly C om p leted
Erase Co mp leted
Ch ip Erase Com m and Sequ ence
(Address/Com mand)
5555 H/AA H
Ind ividual Se ctor/M ultiple Se ctor
Erase Com mand Sequence
(Address/Com mand)
5555 H/AA H
2AA AH /55H
2AA AH /55H
5 555H /80H
5 555H /80H
5555 H/AA H
5555 H/AA H
2AA AH /55H
2AA AH /55H
5 555H /10H
Sector Ad dre ss/30 H
Sector Ad dre ss/30 H
Sector Ad dre ss/30 H
Add itio na l sector
erase com mands
a re o ptiona l
Figure 2. Internal Erase Algorithm
HY29F040A
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