stmpe811ttr STMicroelectronics, stmpe811ttr Datasheet

stmpe811ttr

Manufacturer Part Number

stmpe811ttr

Description

8-bit Port Expander With Advanced Touch Screen Controller

Manufacturer

STMicroelectronics

Datasheet

1.STMPE811TTR.pdf (3 pages)

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Features

■

Table 1. Device summary

July 2007

For further information contact your local STMicroelectronics sales office.

8 GPIOs

1.8-3.3V operating voltage

Integrated 4-wire touch screen controller

Interrupt output pin

Wake-up feature on each I/O

SPI and I

Up to 2 devices sharing the same bus in I

mode (1 address line)

8-input 12-bit ADC

Touch screen controller buffer depth of 128

Touch screen movement detection algorithm to

avoid excessive data

8kV HBM ESD protection

STMPE811QTR

STMPE811TTR

Order code

C interface

8-bit port expander with advanced touch screen controller

TSSOP16

Package

QFN16

Rev 1

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

in mobile-multimedia platforms to solve the

problems of the limited amounts of GPIOs usually

available on the digital engine.

The STMPE811 offers great flexibility as each

I/Os can be configured as input, output or specific

functions. The device has been designed with

very low quiescent current and includes a wake-

up feature for each I/O, to optimize the power

consumption of the IC.

A 4-wire touch screen controller is built into the

STMPE811. The touch screen controller is

enhanced with movement tracking algorithm, 128-

depth buffer and a programmable active window

feature.

C). A separate GPIO expander IC is often used

QFN16

Tape and reel

STMPE811

Packaging

TSSOP16

Data Brief

www.st.com

1/3

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stmpe811ttr Summary of contents

Page 1

... Touch screen movement detection algorithm to avoid excessive data ■ 8kV HBM ESD protection Table 1. Device summary Order code STMPE811QTR STMPE811TTR July 2007 For further information contact your local STMicroelectronics sales office. QFN16 2 C Description The STMPE811 is a GPIO (General Purpose ...

Page 2

Revision history 1 Revision history Table 1. Revision history Date 24-Jul-2007 2/3 Revision 1 Initial release STMPE811 Changes ...

Page 3

... STMPE811 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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