7 PRECAUTIONS ON MOUNTING

(2)When connecting between the VDD and VSS pins with a bypass capacitor, the pins should be connected as short as possible.

Bypass capacitor connection example

VDD VDD

VSS VSS

A/D Converter

•When the A/D converter is not used, the power supply pin AVDDE for the analog system should be connected to VDDE.

Arrangement of Signal Lines

•In order to prevent generation of electromagnetic induction noise caused by mutual inductance, do not arrange a large current signal line near the circuits that are sensitive to noise such as the oscillation unit and analog input unit.

•When a signal line is parallel with a high-speed line in long distance or intersects a high-speed line, noise may generated by mutual interference between the signals and it may cause a malfunction.

Do not arrange a high-speed signal line especially near circuits that are sensitive to noise such as the oscillation unit and analog input unit.

Prohibited pattern

 

 

 

OSC4

 

 

 

 

 

 

 

 

K60 (AD0)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSC3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Large current signal line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High-speed signal line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Large current signal line

 

 

 

 

 

 

 

 

High-speed signal line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-70

EPSON

S1C33205 PRODUCT PART