Chapter 2. Architecture
Clock Generator
The GMS340 series has an internal clock oscillator. The oscillator circuit is
designed to operate with an external ceramic resonator. Internal capacitors are
available as a masked option. Oscillator circuit is able to organize by connecting
ceramic resonator to outside. (In order to built in capacitor for oscillation as
masked option.)
* It is necessary to connect capacitor to outside in order to change ceramic
resonator, You must examine refer to a manufacturer`s
OSC1
OSC2
OSC1
23
OSC2
22
23
22
C1
C2
<Circuit 1>
<Circuit 2>
Operating Frequency
Oscillation Circuit
Circuit 1
fOSC = 2.4 ~ 4MHz
Internal capacitor option
No Internal capacitor option
Circuit 2
fOSC = 300 ~ 500KHz
Circuit 1
2 - 6
HYNIX [ HYNIX SEMICONDUCTOR ]
