STMPE812 datasheet(13/51 Pages) STMICROELECTRONICS

部件名	STMPE812

功能描述	S-Touch® enhanced 4-wire resistive touchscreen controller with PWM

PDF	51 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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13 / 51 page

STMPE812

Power modes

Doc ID 17732 Rev 3

13/51

Power modes

The STMPE812 operates in a 2 states: active and hibernate.

Active:

–

Whenever PEN-DOWN is detected, the device remains in active mode

–

Whenever PWM is active, the device remains in active mode

–

Whenever ADC is active, the device remains in ACTIVE MODE

Hibernate:

-PWM/ADC must be “off” (clock disable bit SET)

-Any GPIO input, with interrupt enabled cause a transition to “active” state, if an input

change is detected.

-Pen down even causes transition to “active” state if the touchscreen controller is enabled.

Table 5.

Power mode

Active

Hibernate

Current consumption

280 µA (max)(1)

At Vcc=1.8V, TCS running at 100sets of X/Y per second, MAV disabled.

1.0 µA (max.)

GPIO hotkey

Yes

Touchscreen

Yes

Interface (I2C)

Yes

Obsolete

Product(s)

- Obsolete

Product(s)

STMPE812 数据表(PDF) 13 Page - STMicroelectronics

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