STMPE812 datasheet(1/51 Pages) STMICROELECTRONICS

Part #	STMPE812

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

PDF	51 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 51 page

February 2011

Doc ID 17732 Rev 3

1/51

51

STMPE812

S-Touch®

enhanced 4-wire resistive touchscreen controller with PWM

Features

■ 4 GPIOs (8 mA drive, 12 mA sink at 3.3 V)

■ 1 additional, general purpose 12-bit ADC

■ Operating voltage 1.65 - 3.6 V

■ Integrated 4-wire touchscreen controller, pen-

down/real-time mode, fully-autonomous

■ 1 PWM controller

■ Auto-hibernation and low power

– Typ 0.5 µA in Hibernation mode

– Typ 100 µA in Active mode

■ Interrupt output pin (optional)

■ Reset input pin (optional)

■ Wake-up feature on each port configured as

GPIO input

■ I2C interface

■ 8 kV HBM, 1 kV CDM ESD protection on

X+/X-/Y+/Y-

■ 2 kV HBM, 250 V CDM ESD protection on all

other pins

Applications

■ Portable media players

■ Game consoles

■ Mobile and smart phones

Description

The STMPE812 is a 4-wire resistive touchscreen

controller with 4-bit port expander integrated.

The touchscreen controller is designed to be fully

autonomous, requiring only minimal CPU

intervention for sampling, filtering and pre-

processing operations.

Flip-chip CSP12

(2.17 x 1.67 mm)

Table 1.

Device summary

Order code

Package

Packaging

STMPE812BJR

Flip-chip CSP12 (2.17 x 1.67 mm)

Tape and reel

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)

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