ST6252(2002) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST6252
(Rev.:2002)

8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER AND EEPROM

STMicroelectronics 

ST62T52C ST62T62C/E62C

CLOCK SYSTEM (Cont’d)

Figure 9. OSG Filtering Principle

(1)

(2)

(3)

(4)

(1) Maximum Frequency for the device to work correctly

(2) Actual Quartz Crystal Frequency at OSCin pin

(3) Noise from OSCin

(4) Resulting Internal Frequency

Figure 10. OSG Emergency Oscillator Principle

Main

Oscillator

Emergency

Oscillator

Internal

Frequency

20/78

VR001932

VR001933

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