GMS90C320

OCT. 2000 Ver 1.2

39

OSCILLATOR CIRCUIT

Figure 10 Recommended Oscillator Circuits

Oscillation circuit is designed to be used either with a ceramic resonator or crystal oscillator. Since each crystal and ceramic

resonator have their own characteristics, the user should consult the crystal manufacturer for appropriate values of external

components.

XTAL2

P-LCC-44/Pin 20

P-DIP-40/Pin 18

M-QFP-44/Pin 14

XTAL1

P-LCC-44/Pin 21

P-DIP-40/Pin 19

M-QFP-44/Pin 15

CRYSTAL OSCILLATOR MODE

DRIVING FROM EXTERNAL SOURCE

XTAL2

P-LCC-44/Pin 20

P-DIP-40/Pin 18

M-QFP-44/Pin 14

XTAL1

P-LCC-44/Pin 21

P-DIP-40/Pin 19

M-QFP-44/Pin 15

External Oscillator

Signal

N.C.

C2

C1

C1, C2 = 30pF

±10pF for Crystals

For Ceramic Resonators, contact resonator manufacturer.