Specifications

PIC16F8X
 1998 Microchip Technology Inc. DS30430C-page 97
12.0 DC & AC CHARACTERISTICS GRAPHS/TABLES
The graphs and tables provided in this section are for design guidance and are not tested or guaranteed.
In some graphs or tables, the data presented are outside specified operating range (i.e., outside specified V
DD
range). This is for information only and devices are guaranteed to operate properly only within the specified range.
The data presented in this section is a statistical summary of data collected on units from different lots over a period
of time and matrix samples. 'Typical' represents the mean of the distribution at 25°C, while 'max' or 'min' represents
(mean + 3σ) and (mean - 3σ) respectively, where σ is standard deviation.
FIGURE 12-1: TYPICAL RC OSCILLATOR FREQUENCY vs. TEMPERATURE
TABLE 12-1 RC OSCILLATOR FREQUENCIES*
Cext Rext
Average
Fosc @ 5V, 25°C
Part to Part Variation
20 pF 5 k 4.61 MHz ± 25%
10 k 2.66 MHz ± 24%
100 k 311 kHz ± 39%
100 pF 5 k 1.34 MHz ± 21%
10 k 756 kHz ± 18%
100 k 82.8 kHz ± 28%
300 pF 5 k 428 kHz ± 13%
10 k 243 kHz ± 13%
100 k 26.2 kHz ± 23%
* Measured on DIP packages. The percentage variation indicated here is part-to-part variation due to normal process
distribution. The variation indicated is ±3 standard deviation from average value for full V
DD range.
FOSC
FOSC (25°C)
1.20
1.16
1.12
1.08
1.04
1.00
0.96
0.92
0.88
0.84
-40 -20 0
25
20
40
60 80 100
T(°C)
Frequency normalized to +25°C
VDD = 5.5 V
VDD = 3.5 V
Rext = 10 kΩ
Cext = 100 pF
70 85