When Not Using Internal Power Supply Step-Down Circuit - Renesas H8 Series Hardware Manual

Section 15 Power Supply Circuit (H8/38124 Group Only)
15.2

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 CV pin and V
CC
directly to the internal power supply. The permissible range for the power supply voltage is 2.7 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 15.2 Power Supply Connection when Internal Step-Down Circuit is Not Used
Rev. 7.00 Mar 10, 2005 page 452 of 652
REJ09B0042-0700
pin, as shown in figure 15.2. The external power supply is then input
CC
Step-down circuit
Internal
Internal
power
logic
supply
V V = 2.7 to 3.6 V
CC CC
CV
CC
V
SS