PIC17C7XX_13 Datasheet, PDF (269/306 Pages) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

FIGURE 21-4:
TYPICAL RC OSCILLATOR FREQUENCY vs. VDD
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
CEXT = 300 pF, T = +25C
0.2
0.0
4.0
4.5
R = 3.3k
R = 5.1k
R = 10k
R = 160k
5.0
5.5
VDD (Volts)
PIC17C7XX
6.0
6.5
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%
 1998-2013 Microchip Technology Inc.
DS30289C-page 269