HD4043312 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD4043312

4-bit HMCS400-Series microcomputer

Hitachi -> Renesas Electronics 

1. When not using an A/D converter.

VCC

0.1 µF

GND

HD404339 Series

AVCC

AN0

AN1

to

AN11

AVSS

2. When using pins AN0 and AN1 but not using AN2 to AN11.

VCC

GND

0.1 µF × 3

AVCC

AN0

AN1

AN2 to

AN11

AVSS

3. When using all analog pins.

VCC

AVCC

AN 0

AN 1

AN 2 to

AN 11

GND

0.1 µF × 13

AVSS

Figure 54 Example of Connections (AVCC to AVSS)

Between the VCC and GND lines, connect capacitors designed for use in ordinary power supply circuits.

An example connection is described in figure 54.

No resistors can be inserted in series in the power supply circuit, so the capacitors should be connected in

parallel. The capacitors are a large capacitance C1 and a small capacitance C2.

65

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