TTP232-CA6

2014/11/07

Page 5 of 8

Version：1.0

Ⅲ

. Maximum key on duration time

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

To prevent this, the TTP232-CA6 sets a timer to monitor the detection. The timer is the

maximum on duration time about 16sec. 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.

Ⅳ

. Key operating mode

The TTP232-CA6 fixes Multi-key function.

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

Ⅴ

. The touch response time

The touch response time of TTP232-CA6 is about 220msec from stand-by state.

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