HD64F38024HV Datasheet, PDF (470/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

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 CVCC pin and VCC pin, as shown in figure 15.2. The external power supply is then input
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.
V_CC
Step-down circuit
CV_CC
Internal ^Internal
logic ^power
supply
V_SS
V_CC = 2.7 to 3.6 V
Figure 15.2 Power Supply Connection when Internal Step-Down Circuit is Not Used
Rev. 8.00 Mar. 09, 2010 Page 448 of 658
REJ09B0042-0800