HMS87C1304A Datasheet, PDF (69/70 Pages) Hynix Semiconductor – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

HYUNDAI MicroElectronics
HMS87C1304A/HMS87C1302A
START
Set V_DD=V_DD1H
Set V_PP=V_IHP
Report
Programming failure
NO
Verify blank
YES
First Address Location
Verify for all address
Report
Verify failure
NO
Verify OK
YES
Report
Programming OK
Next address location
V_DD=V_pp=0v
Report
N=1
Programming failure
y _{EPROM Write}
YES
r _{100uS program time}
NO
Verify pass
ina ^NO
Verify pass
YES
lim ^{Apply 3N program cycle}
e ^NO
Last address
Pr ^YES
END
Figure 20-5 Programming Flow Chart
Jan. 2001
Preliminary
69