Datasheet

16
Data Sheet
512 Kbit / 1 Mbit / 2 Mbit Many-Time Programmable Flash
GLS27SF512 / GLS27SF010 / GLS27SF020
©2010 Greenliant Systems, Ltd. S71152-13-000 05/10
FIGURE 14: Chip-Erase Algorithm for GLS27SF010/020
Start
A
9
= V
H
, V
PP
= V
PPH
A
9
= V
IL
or V
IH
CE# = V
IL
, OE# = V
IH
Wait A
9
Recovery Time
Erase 100ms pulse
(PGM# = V
IL
)
Read Device
Device Passed
Compare all
bytes to FFH
Device Failed
1152 F08c.1
PGM# = V
IH
No
Ye s