HD6473258CP10 Datasheet, PDF (215/301 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Figures 11-9 to 11-10 show the basic high-speed programming flowchart.
Tables 11-6 and 11-8 list the electrical characteristics of the chip in the PROM mode. Figure 11-11
shows a write/verify timing chart.
Y
N
n < 25?
N
Error
START
Set program/verify mode
Vcc = 6.0V ±0.25V, Vpp = 12.5V ±0.3V
Address = 0
n=0
n+1 →n
Program t _PW= 0.2 ms ±5%
N
Verify OK?
Y
Program t _OPW= 0.2n ms
N
Last address?
Y
Set read mode
Vcc = 5.0V, Vpp = Vcc ±0.6
Address + 1 → Address
All addresses read?
Y
END
Figure 11-9. High-Speed Programming Flowchart (H8/3257, H8/3256)
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