STMPE811_09 datasheet(1/64 Pages) STMICROELECTRONICS

No de pièce	STMPE811

Description	Advanced resistive touch screen controller with 8-bit GPIO expander

PDF	64 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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1 / 64 page

April 2009

Doc ID 14489 Rev 2

1/64

64

STMPE811

Advanced resistive touch screen controller

with 8-bit GPIO expander

Features

■ 8 GPIOs

■ 1.8 - 3.3 V operating voltage

■ Integrated 4-wire touch screen controller

■ Interrupt output pin

■ Wakeup feature on each I/O

■ SPI and I2C interface

■ Up to 2 devices sharing the same bus in

I2C mode (1 address line)

■ 8-input 12-bit ADC

■ 128-depth buffer touch screen controller

■ Touch screen movement detection algorithm

■ 25 kV air-gap ESD protection (system level)

■ 4 kV HBM ESD protection (device level)

Applications

■ Portable media players

■ Game consoles

■ Mobile and smartphones

■ GPS

Description

The STMPE811 is a GPIO (general purpose

input/output) port expander able to interface a

main digital ASIC via the two-line bidirectional bus

(I2C). A separate GPIO expander is often used in

mobile multimedia platforms to solve the

problems of the limited amount of GPIOs typically

available on the digital engine.

The STMPE811 offers great flexibility, as each I/O

can be configured as input, output or specific

functions. The device has been designed with

very low quiescent current and includes a wakeup

feature for each I/O, to optimize the power

consumption of the device.

A 4-wire touch screen controller is built into the

STMPE811. The touch screen controller is

enhanced with a movement tracking algorithm (to

avoid excessive data), a 128 x 32 bit buffer and

programmable active window feature.

QFN16

(3x3)

Table 1.

Device summary

Order code

Package

Packaging

STMPE811QTR

QFN16

Tape and reel

www.st.com

Numéro de pièce similaire - STMPE811_09

Fabricant	No de pièce	Fiches technique	Description
STMicroelectronics	STMPE811	508Kb / 54P	8-bit port expander with advanced touchscreen controller 09-Jun-2008

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Description similaire - STMPE811_09

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STMicroelectronics	STMPE811	50Kb / 3P	8-bit port expander with advanced touch screen controller 24-Jul-2007
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STMPE811 Fiches technique(PDF) 1 Page - STMicroelectronics

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Numéro de pièce similaire - STMPE811_09

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