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參數(shù)資料
| 型號(hào)： | MX10F202FC |
| 廠商： | MACRONIX INTERNATIONAL CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁數(shù)： | 18/47頁 |
| 文件大小： | 253K |
| 代理商： | MX10F202FC |
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25
P/N:PM0762
REV. 1.0, MAY. 22, 2003
MX10F202FC
Specifications subject to change without notice, contact your sales representatives for the most update information.
RC oscillator function
MX10F202FC provides a RC oscillator function for the application that does not need very accurate system clock
frequency and has to save the cost of crystal oscillator. As shown in Fig. 13, to use the RC oscillator function as
the system clock source, a suggested 50K~200K can be connected between the RCP pin and ground. The XTAL1
pin has to be connected to ground or the internal clock system may be failed. When the system clock source
comes from the crystal oscillator, the RCP pin is suggested to connect to VDD. The following table shows
approximately the relationship between the RC oscillator clock frequency and the resistor value.
Resistor Value (K ohm)
RC oscillator clock frequency (MHz)
5V
3V
50
12~14
9~11
75
10~12
7.5~9
100
9~10
6.5~8
125
8~9
6~7.5
150
~7.5
5.5~6.5
175
~6.5
5.2~5.8
200
~6
4.7~5.3
XTAL1
XTAL2
RCP
VDD
Resistor
(a)
(b)
Fig. 13 System clock connection way : (a) Use RC oscillator as system
clock source, (b) Use crystal oscillator as system clock source.
Table. 25 RC oscillator reference table
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