參數(shù)資料
型號(hào): MTA85412S-04I/SS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO20
封裝: 0.209 INCH, PLASTIC, SSOP-20
文件頁(yè)數(shù): 39/72頁(yè)
文件大?。?/td> 760K
代理商: MTA85412S-04I/SS
MTA85XXX
DS40115C-page 44
1995 Microchip Technology Inc.
16.0
DC / AC CHARACTERISTICS
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 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. "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 16-1: TYPICAL RC OSCILLATOR FREQUENCY vs. TEMPERATURE
TABLE 16-1:
RC OSCILLATOR FREQUENCIES
Cext
Rext
Average
Fosc @ 5V, 25
°C
20 pF
3.3k
4.973 MHz
± 27%
5k
3.82 MHz
± 21%
10k
2.22 MHz
± 21%
100k
262.15 kHz
± 31%
100 pF
3.3k
1.63 MHz
± 13%
5k
1.19 MHz
± 13%
10k
684.64 kHz
± 18%
100k
71.56 kHz
± 25%
300 pF
3.3k
660.0 kHz
± 10%
5.k
484.1 kHz
± 14%
10k
267.63 kHz
± 15%
160k
29.44 kHz
± 19%
Note 1: The frequencies are measured on DIP packages.
Note 2: 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 = 5V.
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
010
20
25
30
40
50
60
70
T(
°C)
Frequency normalized to +25
°C
VDD = 5.5V
VDD = 3.5V
Rext
≥ 10 k
Cext = 100 pF
0.88
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