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TTP259-ASFN Datasheet(PDF) 15 Page - Tontek Design Technology |
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TTP259-ASFN Datasheet(HTML) 15 Page - Tontek Design Technology |
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15 / 81 page ![]() Preliminary TTP259 TonTouch TM 2015/05/25 Page 15 of 81 Ver: 1.1 § System function description: S-1: System Oscillator The high speed oscillator is operated in built-in RC mode. It is fixed 4MHz (typical at VDD=5V). S-2: Peripheral Oscillator The low speed oscillator was built-in an internal RC oscillator that is for low power consumption consideration and fixed peripheral device timing control. Built-in RC oscillator and the frequency range between 11 KHz~21 KHz. S-3: CPU clock The CPU clock comes from system/peripheral oscillator which was controlled by H/L bit in PS register. The high speed operation frequency comes from system oscillator. The low speed operation frequency comes from peripheral oscillator. |
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