ST6200 STMICROELECTRONICS [STMicroelectronics], ST6200 Datasheet - Page 71

• Manufacturer Part Number: ST6200
• Description: 8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

CLOCK AND TIMING CHARACTERISTICS (Cont’d)
Figure 46. Typical RC Oscillator frequency vs.
V
10.5.5 Oscillator Safeguard (OSG) and Low Frequency Auxiliary Oscillator (LFAO)
Figure 48. Typical LFAO Frequencies
Note:
1. Data based on characterization results.
f
f
DD
LFAO
OSG
Symbol
fosc [MHz]
12
10
4
8
6
2
0
3
Low Frequency Auxiliary Oscillator
Frequency
Internal Frequency with OSG ena-
bled
Rnet=22KOhm
Rnet=47KOhm
Rnet=100KOhm
Rnet=220KOhm
Rnet=470KOhm
4
1)
Parameter
VDD [V]
fosc [kHz]
600
500
400
300
200
100
0
5
3
Ta=-40°C
Ta=25°C
Ta=125°C
T
T
T
T
A
A
A
A
6
25° C, V
25° C, V
25° C, V
25° C, V
4
Conditions
VDD [V]
Figure 47. Typical RC Oscillator frequency vs.
Temperature (V
DD
DD
DD
DD
fosc [MHz]
10
4
8
6
2
0
5.0 V
3.3 V
4.5 V
3.3 V
-40
5
ST6200C/ST6201C/ST6203C
Min
200
DD
86
4
2
Rnet=22KOhm
Rnet=47KOhm
Rnet=100KOhm
Rnet=220KOhm
Rnet=470KOhm
6
25
= 5V)
Ta [°C]
Typ
350
150
95
Max
800
340
MHz
Unit
71/100
125
kHz
1