參數(shù)資料
型號(hào)： 16F84A
廠商： Microchip Technology Inc.
英文描述： CAT 5E CROSSOVER PATCH CORD CABLE BLUE 20 FT
中文描述： 18引腳閃存/ EEPROM的8位微控制器
文件頁數(shù)： 97/124頁
文件大?。?/td> 1322K
代理商： 16F84A
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 + 3
σ
) and (mean - 3
σ
) 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
±
25%
±
24%
±
39%
±
21%
±
18%
±
28%
±
13%
±
13%
±
23%
20 pF
5 k
10 k
100 k
5 k
10 k
100 k
5 k
10 k
100 k
4.61 MHz
2.66 MHz
311 kHz
1.34 MHz
756 kHz
82.8 kHz
428 kHz
243 kHz
26.2 kHz
100 pF
300 pF
* 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.
F
OSC
F
OSC
(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
V
DD
= 5.5 V
V
DD
= 3.5 V
Rext
=
10 k
Cext = 100 pF
70
85
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