FEATURES

• Operating voltage 2.4V~5.5V
• Built-in regulator with external enable/disable option
• Operating current, @VDD=3V no load
• At low power mode typical 2.5uA
• At fast mode typical 9.0uA
• @VDD=3V operating voltage :
• The response time about 100mS at fast mode, 200mS at low power mode  for TTP224
• The response time about 60mS at fast mode, 160mS at low power mode for TTP224N
• Sensitivity can adjust by the capacitance(0~50pF) outside for each touch pad
• Provides Fast mode and Low Power mode selection by pad option(LPMB pin)
• Provides direct mode or toggle mode
• CMOS output or open drain outputactive high or active low by padoption(TOG/OD/AHLB pin).
• Provides 2 output pins TPQ0D, TPQ2D that have no diode protection, active low
• Have the maximum on time 120sec/64sec/16sec/infinite by pad option(MOT1, MOT0 pin)
• After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and the function is disabled
• Auto calibration for life, and the re-calibration period is about 4.0sec, when key has not be touched.

APPLICATION

• Wide consumer products
• Button key replacement

TTP224/TTP224N