GMS87C1102 datasheet(45/89 Pages) HYNIX

Part #	GMS87C1102

Description	8-BIT SINGLE-CHIP MICROCONTROLLERS

PDF	89 Pages

Scroll/Zoom	100%

Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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45 / 89 page

GMS81C1102 / GMS81C1202

Jan. 2002 ver 2.0

Figure 14-4 RC Oscillator Connections

The oscillator frequency, divided by 4, is output from the

Xout pin, and can be used for test purpose or to synchroze

other logic.

To set the RC oscillation, it should be programmed

RCOPT bit to "1" to CONFIG (0FF0H). ( Refer to DE-

VICE CONFIGURATION AREA )

Note: When using a system clock oscillator, carry out wir-

ing in the broken line area in Figure 14-2 to prevent

any effects from wiring capacities.

- Minimize the wiring length.

- Do not allow wiring to intersect with other signal

conductors.

- Do not allow wiring to come near changing

high current.

- Set the potential of the grounding position of the os-

cillator capacitor to that of VSS.

Do not ground to

any ground pattern where high current is

present.

- Do not fetch signals from the oscillator.

Xout

Xin

Vdd

Cext

fxin

÷4

Rext

GMS87C1102 Datasheet(PDF) 45 Page - Hynix Semiconductor