參數資料
型號： HT48C70
廠商： Holtek Semiconductor Inc.
英文描述： 8-Bit Microcontroller Series
中文描述： 8位微控制器系列
文件頁數： 20/40頁
文件大小： 273K
代理商： HT48C70
Application Circuits
Note:
The resistance and capacitance for reset circuit should be designed to ensure that the VDD is stable and re-
mains in a valid range of the operating voltage before bringing RES to high.
* Make the length of the wiring, which is connected to the RES pin as short as possible, to avoid noise
interference.
The following table shows the C1, C2 and R1 value according different crystal values. (For reference only)
Crystal or Resonator
C1, C2
R1
4MHz Crystal
0pF
10k
4MHz Resonator
10pF
12k
3.58MHz Crystal
0pF
10k
3.58MHz Resonator
25pF
10k
2MHz Crystal & Resonator
25pF
10k
1MHz Crystal
35pF
27k
480kHz Resonator
300pF
9.1k
455kHz Resonator
300pF
10k
429kHz Resonator
300pF
10k
The function of the resistor R1 is to ensure that the oscillator will switch off should low voltage condi-
tions occur. Such a low voltage, as mentioned here, is one which is less than the lowest value of the
MCU operating voltage. Note however that if the LVR is enabled then R1 can be removed.
HT48R70A-1/HT48C70-1
Rev. 1.60
20
June 9, 2004
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相關PDF資料
PDF描述
HT48CA0-2 Remote Type 8-Bit MCU
HT48RA0 Remote Type 8-Bit MCU
HT48RA0-2 Remote Type 8-Bit MCU
HT48CA0 8-BIT MICROCONTROLLER
HT48CA1 Remote Type 8-Bit MCU
相關代理商/技術參數
參數描述
HT48C70(40DIP-A) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
HT48C70(64QFP-A) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
HT48C70-1 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Type 8-Bit MCU
HT48C75(40DIP-A0) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
HT48C75(40DIP-B0) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
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