HD64F3437TF16 Datasheet, PDF (398/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Start
Set program/verify mode
V_CC = 6.0 V ±0.25 V,
V_PP = 12.5 V ±0.3 V
Address = 0
No
Error
n=0
n + 1→ n
Yes
n < 25?
Program t_PW = 0.2 ms ±5%
No
Verify OK?
Yes
Program t_OPW = 0.2n ms
Address + 1 → address
No
Last address?
Yes
Set read mode
V_CC = 5.0 V ±0.25 V,
V_PP = V_CC
No go
Read all
addresses
Go
End
Figure 18.5 High-Speed Programming Flowchart
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