ST62E18C View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST62E18C

8-BIT MCUs WITH A/D CONVERTER, AUTO-RELOAD TIMER, UART, OSG, SAFE RESET AND 20-PIN PACKAGE

STMicroelectronics 

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ST62T18C/E18C

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

18/82

18

VR001932

VR00 1933

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