Datasheet
1997-2013 Microchip Technology Inc. Preliminary DS30453E-page 117
PIC16C5X
16.0 DEVICE CHARACTERIZATION - PIC16C54A
The graphs and tables provided following this note are a statistical summary based on a limited number of samples and
are provided for informational purposes only. The performance characteristics listed herein are not tested or guaran-
teed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified
power supply range) and therefore outside the warranted range.
“Typical” represents the mean of the distribution at 25°C. “Maximum” or “minimum” represents (mean + 3) or (mean
– 3) respectively, where is a standard deviation, over the whole temperature range.
FIGURE 16-1: TYPICAL RC OSCILLATOR FREQUENCY vs. TEMPERATURE
TABLE 16-1: RC OSCILLATOR FREQUENCIES
CEXT REXT
Average
Fosc @ 5 V, 25C
20 pF 3.3K 5 MHz 27%
5K 3.8 MHz 21%
10K 2.2 MHz 21%
100K 262 kHz 31%
100 pF 3.3K 1.6 MHz 13%
5K 1.2 MHz 13%
10K 684 kHz 18%
100K 71 kHz 25%
300 pF 3.3K 660 kHz 10%
5.0K 484 kHz 14%
10K 267 kHz 15%
100K 29 kHz 19%
The frequencies are 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 V
DD = 5V.
Fosc
Fosc (25C)
1.10
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
0202530405070
T(C)
Frequency normalized to +25C
VDD = 5.5V
VDD = 3.5V
REXT 10 kW
C
EXT = 100 pF
0.88
1.08
60
10