PIC16C57C-HSI/SO 查看數據表（PDF） - Microchip Technology
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PIC16C57C-HSI/SO Datasheet PDF : 192 Pages
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PIC16C5X
14.0 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 14-1:
FOSC
FOSC (25C)
1.10
1.08
1.06
1.04
1.02
1.00
TYPICAL RC OSCILLATOR FREQUENCY vs. TEMPERATURE
Frequency normalized to +25C
REXT 10k
CEXT = 100 pF
0.98
0.96
0.94
0.92
0.90
0.88
0
10
VDD = 3.5V
VDD = 5.5V
20 25 30
40
50
60
70
T(C)
TABLE 14-1: RC OSCILLATOR FREQUENCIES
CEXT
REXT
Average
FOSC @ 5 V, 25C
20 pF
3.3K
5K
10K
100K
100 pF
3.3K
5K
10K
100K
300 pF
3.3K
5.0K
10K
100K
The frequencies are measured on DIP packages.
5 MHz
3.8 MHz
2.2 MHz
262 kHz
1.6 MHz
1.2 MHz
684 kHz
71 kHz
660 kHz
484 kHz
267 kHz
29 kHz
27%
21%
21%
31%
13%
13%
18%
25%
10%
14%
15%
19%
The percentage variation indicated here is part-to-part variation due to normal process distribution. The variation
indicated is 3 standard deviations from the average value for VDD = 5V.
1997-2013 Microchip Technology Inc.
Preliminary
DS30453E-page 91
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