st62t65cm3 STMicroelectronics, st62t65cm3 Datasheet - Page 20

• Manufacturer Part Number: st62t65cm3
• Description: 8-bit Otp/eprom Mcus With A/d Converter, Safe Reset, Auto-reload Timer, Eeprom And Spi
• Manufacturer: STMicroelectronics

ST62T55C ST62T65C/E65C
CLOCK SYSTEM (Cont’d)
Figure 9. OSG Filtering Principle
Figure 10. OSG Emergency Oscillator Principle
20/86
Emergency
Frequency
Oscillator
Oscillator
Internal
(1)
(2)
(3)
(4)
(1)
(2)
(3)
(4)
Main
Resulting Internal Frequency
Maximum Frequency for the device to work correctly
Actual Quartz Crystal Frequency at OSCin pin
Noise from OSCin
VR001932
VR001933