PIC16C58B-20ISLASHSS datasheet(63/84 Pages) MICROCHIP

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Preliminary

DS40191A-page 63

PIC16CR54C

11.0

DC AND AC CHARACTERISTICS - PIC16CR54C

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 (e.g., outside speciﬁed VDD range). This is

for information only and devices will 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. “Typical” represents the mean of the distribution while “max” or “min” represents (mean + 3

σ) and (mean – 3σ)

respectively, where

σ is standard deviation.

FIGURE 11-1: TYPICAL RC OSCILLATOR FREQUENCY vs. TEMPERATURE

TABLE 11-1:

RC OSCILLATOR FREQUENCIES

Cext

Rext

Average

Fosc @ 5 V, 25

°C

20 pF

3.3 k

4.973 MHz

± 27%

5 k

3.82 MHz

± 21%

10 k

2.22 MHz

± 21%

100 k

262.15 kHz

± 31%

100 pF

3.3 k

1.63 MHz

± 13%

5 k

1.19 MHz

± 13%

10 k

684.64 kHz

± 18%

100 k

71.56 kHz

± 25%

300 pF

3.3 k

660 kHz

± 10%

5.0 k

484.1 kHz

± 14%

10 k

267.63 kHz

± 15%

160 k

29.44 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 VDD = 5 V.

FOSC

FOSC (25

°C)

1.10

1.08

1.06

1.04

1.02

1.00

0.98

0.96

0.94

0.92

0.90

°C)

Frequency normalized to +25

°C

VDD = 5.5 V

VDD = 3.5 V

Rext

≥ 10 kΩ

Cext = 100 pF

0.88

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