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TTP259-ASFN Datasheet(PDF) 15 Page - Tontek Design Technology

Part # TTP259-ASFN
Description  Preliminary
PDF  81 Pages
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Manufacturer  TONTEK [Tontek Design Technology]
Direct Link  http://www.tontek.com.tw
Logo TONTEK - Tontek Design Technology

TTP259-ASFN Datasheet(HTML) 15 Page - Tontek Design Technology

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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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