When Not Using Internal Power Supply Step-Down Circuit; Figure 18.2 Power Supply Connection When Internal Step-Down Circuit Is Not Used - Renesas H8 Series Hardware Manual

Section 18 Power Supply Circuit
18.2

When Not Using Internal Power Supply Step-Down Circuit

When the internal power supply step-down circuit is not used, connect the external power supply
to the V pin and V
CL CC
to the internal power supply. The permissible range for the power supply voltage is 3.0 V to 3.6 V.
Operation cannot be guaranteed if a voltage outside this range (less than 3.0 V or more than 3.6 V)
is input.

Figure 18.2 Power Supply Connection when Internal Step-Down Circuit is Not Used

Rev. 3.00 Sep. 14, 2006 Page 300 of 408
REJ09B0105-0300
pin, as shown in figure 18.2. The external power supply is then input directly
Step-down circuit
Internal
Internal
power
logic
supply
V V = 3.0 to 3.6 V
CC CC
V
CL
V
SS