p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 683

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

24.6
It is necessary to connect a bypass capacitor between the VCC pin and VSS pin, and a capacitor
between the VCL pin and VSS pin for stable internal step-down power. An example of connection
is shown in figure 24.30.
It is recommended that a bypass capacitor be connected to
the VCC pin. (The values are reference values.)
When connecting, place a bypass capacitor near the pin.
Bypass
capacitor
Vcc power supply
10 µF
Usage Notes
0.01 µF
VCC
VSS
Figure 24.30 Connection of VCL Capacitor
One 0.1 µF / 0.47 µF or
two in parallel
External capacitor
for internal step-down
power stabilization
Do not connect Vcc power supply to the VCL pin.
Always connect a capacitor for internal step-down power
stabilization. Use one or two ceramic multilayer capacitor(s)
(0.1 µF / 0.47 µF: connect in parallel when using two)
and place it (them) near the pin.
Rev. 1.00 Sep. 21, 2006 Page 645 of 658
Section 24 Electrical Characteristics
VCL
VSS
REJ09B0310-0100