PIC16F87-E Datasheet, PDF (200/228 Pages) Microchip Technology – 18/20/28-Pin Enhan lashMicrocontrollers with nanoWatt Technology

PIC16F87/88
FIGURE 19-11: AVERAGE FOSC vs. VDD FOR VARIOUS VALUES OF R (RC MODE, C = 20 pF, +25°C)
4.5
Operation above 4 MHz is not recommended
4.0
3.5
5.1 kOhm
3.0
2.5
10 kOhm
2.0
1.5
1.0
0.5
100 kOhm
0.0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VDD (V)
FIGURE 19-12:
2.5
AVERAGE FOSC vs. VDD FOR VARIOUS VALUES OF R
(RC MODE, C = 100 pF, +25°C)
2.0
3.3 kOhm
1.5
5.1 kOhm
1.0
10 kOhm
0.5
100 kOhm
0.0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VDD (V)
DS30487C-page 198
 2005 Microchip Technology Inc.