1 0 Direct mode, CMOS output active high 1 1 Direct mode, CMOS output active low 0 0 Direct mode, Open drain output active high 0 1 Direct mode, Open drain output act.

z Wide consumer products z Button key replacement 15/06/16 Page 1 of 11 Version：1.1 Block diagram TTP224B TP0 TP1 .

Key-on & timing control TOG AHLB OD SM Pad NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Pad Name TP0 TP1 TP2 TP3 AHLB VDD VREG TOG LPMB MOT1 MOT0 VSS REGEN OD SM TPQ3 TPQ2 TPQ1 TPQ0 Type I/O I/O I/O I/O I-PL P P I-PL I-PL I-PH I-PH P I-PH .

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