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ST6215C Datasheet(PDF) 76 Page - STMicroelectronics

Part No. ST6215C
Description  8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST6215C Datasheet(HTML) 76 Page - STMicroelectronics

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ST6215C/ST6225C
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CLOCK AND TIMING CHARACTERISTICS (Cont’d)
Figure 52. Typical RC Oscillator frequency vs.
VDD
Figure 53. Typical RC Oscillator frequency vs.
Temperature (VDD = 5V)
11.5.5 Oscillator Safeguard (OSG) and Low Frequency Auxiliary Oscillator (LFAO)
Figure 54. Typical LFAO Frequencies
Note:
1. Data based on characterization results.
34
5
6
VDD [V]
0
2
4
6
8
10
12
fosc [MHz]
Rnet=22KOhm
Rnet=47KOhm
Rnet=100KOhm
Rnet=220KOhm
Rnet=470KOhm
-40
25
95
125
Ta [°C]
0
2
4
6
8
10
fosc [MHz]
Rnet=22KOhm
Rnet=47KOhm
Rnet=100KOhm
Rnet=220KOhm
Rnet=470KOhm
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fLFAO
Low Frequency Auxiliary Oscillator
Frequency 1)
TA=25° C, VDD=5.0 V
200
350
800
kHz
TA=25° C, VDD=3.3 V
86
150
340
fOSG
Internal Frequency with OSG ena-
bled
TA=25° C, VDD=4.5 V
4
MHz
TA=25° C, VDD=3.3 V
2
3
456
VDD [V]
0
100
200
300
400
500
600
fosc [kHz]
Ta=-40°C
Ta=25°C
Ta=125°C
1


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