HD6475348R Datasheet, PDF (322/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Figure 17-4 shows the basic high-speed programming flowchart.
Tables 17-5 and 17-6 list the electrical characteristics of the chip in the PROM mode. Figure 17-5
shows a write/verify timing chart.
N
S = 25
Y
n<S
START
SET PROG./VERIFY MODE
VCC = 6.0 V ±0.25 V, V PP = 12.5 V ±0.5 V
Address = 0
n=0
n + 1→n
Program tpw = 1 ms ±5%
N
Verify
GO
Program topw = 3n ms
Address + 1 → Address
FAIL
NOGO
N
Last address?
Y
SET READ MODE
VCC = 5.0 V, VPP = VCC
Read all addresses
GO
END
Figure 17-4 High-Speed Programming Flowchart (H8/534)
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