PIC17C7XX Datasheet, PDF (267/328 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
FIGURE 21-4: TYPICAL RC OSCILLATOR FREQUENCY vs. VDD
2.0
1.8
1.6
1.4
R = 3.3k
1.2
R = 5.1k
1.0
0.8
R = 10k
0.6
0.4
Cext = 300 pF, T = 25°C
0.2
R = 160k
0.0
4.0
4.5
5.0
5.5
6.0
6.5
VDD (Volts)
TABLE 21-2: RC OSCILLATOR FREQUENCIES
Cext
22 pF
100 pF
300 pF
Rext
10k
100k
3.3k
5.1k
10k
100k
3.3k
5.1k
10k
160k
Average
Fosc @ 5V, 25°C
3.33 MHz
353 kHz
3.54 MHz
2.43 MHz
1.30 MHz
129 kHz
1.54 MHz
980 kHz
564 kHz
35 kHz
± 12%
± 13%
± 10%
± 14%
± 17%
± 10%
± 14%
± 12%
± 16%
± 18%
© 1998 Microchip Technology Inc.
Preliminary
DS30289A-page 267