TTP223 Features

• Operating voltage 2.0V~5.5V

• Operating current @VDD=3V, no load

• At low power mode typical 1.5uA, maximum 3.0uA

• The response time max 220mS at low power mode @VDD=3V

• Sensitivity can adjust by the capacitance(0~50pF) outside

• Stable touching detection of the human body for replacing traditional direct switch key

• Provides Low Power mode

• Provides direct mode、toggle mode by pad option(TOG pin) Q pin is CMOS output

• All output modes can be selected active high or active low by pad option(AHLB pin)

• After power-on have about 0.5sec stable-time, during the time do not touch the keypad, And the function is disabled

• Auto calibration for life.

• At low power mode, the re-calibration period is about 4.0sec normally,

• When key detected touch and released touch, the auto re-calibration will be redoing after about 16sec from releasing key

• The sensitivity of TTP223N-BA6 is better than TTP223-BA6’s. But the stability of TTP223N-BA6 is worse than TTP223-BA6’s.

圖片與資料取自網路