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參數(shù)資料
| 型號： | HT48E50 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | I/O Type 8-Bit MTP MCU With EEPROM |
| 中文描述： | I / O型8位微控制器帶有EEPROM中期計劃 |
| 文件頁數(shù)： | 24/46頁 |
| 文件大小： | 303K |
| 代理商： | HT48E50 |
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Application Circuits
Note:
The resistance and capacitance for reset circuit should be designed in such a way as to ensure that the VDD is
stable and remains within a valid operating voltage range 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 values corresponding to the different crystal values. (For refer-
ence only)
Crystal or Resonator
C1, C2
R1
4MHz Crystal
0pF
10k
4MHz Resonator (3 pin)
0pF
12k
4MHz Resonator (2 pin)
10pF
12k
3.58MHz Crystal
0pF
10k
3.58MHz Resonator (2 pin)
25pF
10k
2MHz Crystal & Resonator (2 pin)
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.
HT48E50
Rev. 0.00
24
September 29, 2004
Preliminary
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相關(guān)PDF資料 |
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| HT48R05A-1 | 8-Bit High Performance RISC-like OTP Microcontroller(8位、高性能、類似RISC、一次可編程微控制器，用于多I/O接口設備) |
| HT48R05A | 8-Bit OTP Microcontroller |
| HT48R06A-1 | 8-Bit High Performance RISC-like OTP Microcontroller(8位、高性能、類似RISC、一次可編程微控制器，用于多I/O接口設備) |
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| HT48R10A | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| HT48E70 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Type 8-Bit MTP MCU With EEPROM |
| HT48F06E | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Flash Type MCU with EEPROM |
| HT48F06E_09 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Flash Type MCU with EEPROM |
| HT48F06E-18DIPLF | 制造商:Holtek Semiconductor Inc 功能描述:8BIT MCU 1K FLASH 1K EEPROM DIP |
| HT48F10E | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O Flash Type MCU with EEPROM |
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