TTP232

12/06/25

Page 5 of 8

Version：1.0

Reference Only

Ⅲ. Maximum key on duration time（By MOTB pad option）

If some objects cover in the sense pad, and causing the change quantity enough to be detected.

To prevent this, the TTP232 sets a timer to monitor the detection. The timer is the maximum on

duration time. When the detection is over the timer, the system will return to the power-on initial

state, and the output becomes inactive until the next detection

MOTB

Option features

Remark

1

Infinite（Disable maximum on time）

Default

0

Maximum on time 16 sec

Ⅳ. Key operating mode（By SM pad option）

The TTP232 has the Single-key and Multi-key functions by SM pad option

SM

Option features

Remark

1

Multi-key mode

Default

0

Single key mode

Multi-key mode：The TP0-TP1 can be detected 2 keys the same time

Single-key mode：The TP0-TP1 can be detected 1 key only at the same time, when any key be

detected, the other keys can not be detected

The TTP232 has two kinds of response time functions by DBT pad option

DBT

Option features

Remark

1

220 msec

Default

0

270 msec

Ⅵ. The operating timing for key scanning

The states and timing for key scanning

TP

TPQ

~125ms

ABOUT 8SEC

~16ms

~125ms

~16ms

~125ms

Stand-by timing

Stand-by timing

Touch operation timing

Touch operation timing

Stand-by timing

(NOT REALLY TOUCH)

KEY RELEASE

POSSIBLE KEY TOUCH

KEY RELEASE

KEY TOUCH

VSS

VDD

VSS

VDD