HD6433308 HITACHI [Hitachi Semiconductor], HD6433308 Datasheet - Page 256

• Manufacturer Part Number: HD6433308
• Description: Hitachi Single-Chip MicroComputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

Figure 13-4 shows the basic high-speed programming flowchart.
Tables 13-5 and 13-6 list the electrical characteristics of the chip in the PROM mode. Figure 13-5
shows a write/verify timing chart.
Error
N
n < 25
Figure 13-4. High-Speed Programming Flowchart
Y
N
Vcc = 6.0V ±0.25V, Vpp = 12.5V ±0.5V
N
Vcc = 5.0V ±0.5V, Vpp = Vcc
Write time t
Set program/verify mode
Write t
All addresses read?
Last address?
Set read mode
246
Address = 0
Verify OK?
n + 1
OPW
START
n = 0
PW
END
= 3n ms
= 1 ms ±5%
Y
Y
Y
n
N
Figure 13-4
Address + 1
Address