STMPE812 datasheet(5/51 Pages) STMICROELECTRONICS

Part #	STMPE812

Description	S-Touch® enhanced 4-wire resistive touchscreen controller with PWM

PDF	51 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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5 / 51 page

STMPE812

STMPE812 functional overview

Doc ID 17732 Rev 3

5/51

1.1

Pin configuration and functions

Figure 2.

Pin configuration (top through view)

Table 2.

Pin assignments

Name

Current capacity

Function

Y+

50 mA current limit

Y+

X-

50 mA current limit

X-

Y-

50 mA current limit

Y-

+8 mA/-12 mA at

3.3 V

GPIO-0 / ADC / PWM1 (3.6 V tolerant within VCC

valid range; VIN_ADC must be less than Vcc))

GND

Can be > 80 mA

load at touchscreen

and GPIO drive

Ground

SCL

-4 mA

I2C clock (fail safe, tolerant to 3.6 V regardless of

VCC)

SDA

-4 mA

I2C data (fail safe, tolerant to 3.6 V regardless of

VCC)

+8 mA/-12 mA at

3.3 V

GPIO-3 / INT (3.6 V tolerant within VCC valid

range)

+8 mA/-12 mA at

3.3 V

GPIO-2 / RESET (3.6 V tolerant within VCC valid

range)

Obsolete

Product(s)

- Obsolete

Product(s)

STMPE812 Datasheet(PDF) 5 Page - STMicroelectronics

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