GMS90 Hynix Semiconductor, GMS90 Datasheet - Page 49

• Manufacturer Part Number: GMS90
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: Hynix Semiconductor

GMS90 Series
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 ap-
propriate values of external components.
Dec. 1998 Ver 3.0
C1, C2 = 30pF 10pF for Crystals
For Ceramic Resonators, contact resonator manufacturer.
CRYSTAL OSCILLATOR MODE
C2
C1
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
DRIVING FROM EXTERNAL SOURCE
External Oscillator
Signal
N.C.
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
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