STMPE1208S datasheet(8/51 Pages) STMICROELECTRONICS

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STMPE1208S 数据表(PDF) 8 Page - STMicroelectronics

部件名	STMPE1208S

功能描述	Xpander Logic with 12-channel touchkey

PDF	51 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

8 / 51 page

Pin configuration and function

STMPE1208S

8/51

1.1

Power management

The STMPE1208S operates in 3 states.

Figure 4.

STMPE1208S operating states

On RESET, the STMPE1208S enters the ACTIVE state immediately.

Upon a fixed period of inactivity, the device enters into the SLEEP state. Any touch activity in

SLEEP state would cause the device to go back to ACTIVE state.

In SLEEP mode:

-Calibration continues if F2A bit is set in CONTROL register

-Calibration stops if F2A bit is NOT set in CONTROL register

If no touch activity is expected, the host may set the device into HIBERNATE state to save

power.

ACTIVE

SLEEP

IDLE

RESET

Host command

Time out

Touch or host

command

Host command

CS00039

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