M65849CFP

Rev.1.00, Sep.04.2003, page 13 of 22

Clock oscillator circuit

This IC incorporates a current control type clock oscillator circuit in it,thus providing circuit configuration just by

connecting an Rc for current control pin 2 (CLK).

Fully internal clock supply prevents occurrence of undesired radiation without affecting any external circuit.

The oscillator frequency fck is following.

fck = 4MHz (Rc = 22

Ω)

2

Clock

oscillator

circuit

DC Current

Rc

Clock frequency : fck