HT46RU25 Holtek Semiconductor Inc., HT46RU25 Datasheet - Page 43

• Manufacturer Part Number: HT46RU25
• Description: Ht46ru25/ht46cu25 -- A/d Type 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

Application Circuits
The following table shows the C1 and C2 values corresponding to the different crystal values. (For reference only)
Note:
Rev. 1.30
4MHz Crystal
4MHz Resonator
3.58MHz Crystal
3.58MHz Resonator
2MHz Crystal & Resonator
1MHz Crystal
480kHz Resonator
455kHz Resonator
429kHz Resonator
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.
interference.
* Make the length of the wiring, which is connected to the RES pin as short as possible, to avoid noise
Crystal or Resonator
C1, C2
300pF
300pF
300pF
10pF
25pF
25pF
35pF
0pF
0pF
43
HT46RU25/HT46CU25
March 9, 2007