HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 639

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

2. 12 V is applied to the V
When these pins are pulled up to the V
prevent reverse current from flowing to the V
Note: In normal operation, if the mode MD2 pin to which 12 V is applied is to be set to 0, it
A sample circuit is shown figure 18-32.
(Connection to Adapter Board—When V
should be pulled down with a resistor.
Adapter board
Figure 18-32 Example of Mounting Board Design
PP
Mode pin
and mode MD2 pins when programming or erasing flash memory.
V
12 V
12 V
PP
pin
0.01 F 1.0 F
0.01 F 1.0 F
CC
line in normal operation, diodes should be inserted to
630
CC
line when 12 V is applied.
PP
V
V
Pin and Mode Pin Settings Are 1)
User system
CC
CC
mode
pin
MD2
V
PP
H8/3048F