Datasheet

PIC16C71X
DS30272A-page 148 1997 Microchip Technology Inc.
Applicable Devices 710 71 711 715
FIGURE 16-4: TYPICAL RC OSCILLATOR
FREQUENCY VS. VDD
FIGURE 16-5: TYPICAL IPD VS. VDD
WATCHDOG TIMER
DISABLED 25°C
0
3.0
V
DD (Volts)
Fosc (MHz)
Cext = 300 pF, T = 25°C
R = 100k
3.5 4.0 4.5 5.0 5.5 6.0
.1
.2
.3
.4
.5
.6
.7
.8
R = 10k
R = 4.7k
R = 3.3k
0.0
3.0
V
DD (Volts)
IPD (µA)
0.1
0.2
0.3
0.4
0.5
0.6
3.5
4.0 4.5 5.0 5.5 6.0
TABLE 16-1: RC OSCILLATOR
FREQUENCIES
The percentage variation indicated here is part to part
variation due to normal process distribution. The varia-
tion indicated is ±3 standard deviation from average
value for V
DD = 5V.
FIGURE 16-6: TYPICAL IPD VS. VDD
WATCHDOG TIMER ENABLED
25°C
Cext Rext
Average
F
OSC @ 5V, 25°C
20 pF 4.7k
10k
100k
4.52 MHz
2.47 MHz
290.86 kHz
±17.35%
±10.10%
±11.90%
100 pF 3.3k
4.7k
10k
100k
1.92 MHz
1.49 MHz
788.77 kHz
88.11 kHz
±9.43%
±9.83%
±10.92%
±16.03%
300 pF 3.3k
4.7k
10k
100k
726.89 kHz
573.95 kHz
307.31 kHz
33.82 kHz
±10.97%
±10.14%
±10.43%
±11.24%
VDD (Volts)
IPD (µA)
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0
2
4
6
8
10
12
14
Data based on matrix samples. See first page of this section for details.