HY29F040A Datasheet, PDF (17/40 Pages) Hynix Semiconductor – 512K x 8-bit CMOS 5.0 volt-only, Sector Erase Flash Memory

START
Read Byte
(DQ0-DQ7)
DQ6 = Toggle
NO
?
YES
NO
DQ5 = 1
?
YES
Read Byte
(DQ0-DQ7)
DQ6 = Toggle
?
YES
Fail
NO
Pass
Notes:
1. DQ6 is rechecked even if DQ5 = logical “1” because DQ6 may stop toggling at the same
time as DQ5 changing to a logical ”1".
Figure 4. Toggle Bit Algorithm
HY29F040A
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