STMPE811 datasheet(1/66 Pages) STMICROELECTRONICS

部件名	STMPE811

功能描述	S-Touch® advanced resistive touchscreen controller with 8-bit GPIO expander

PDF	66 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 66 page

April 2011

Doc ID 14489 Rev 5

1/66

66

STMPE811

S-Touch® advanced resistive touchscreen controller

with 8-bit GPIO expander

Features

■ 8 GPIOs

■ 1.8 - 3.3 V operating voltage

■ Integrated 4-wire touchscreen 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 touchscreen controller

■ Touchscreen 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 touchscreen controller is built into the

STMPE811. The touchscreen 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

类似零件编号 - STMPE811

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STMicroelectronics	STMPE811	50Kb / 3P	8-bit port expander with advanced touch screen controller 24-Jul-2007
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类似说明 - STMPE811

制造商	部件名	数据表	功能描述
STMicroelectronics	STMPE811	50Kb / 3P	8-bit port expander with advanced touch screen controller 24-Jul-2007
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	STMPE811	651Kb / 64P	Advanced resistive touch screen controller with 8-bit GPIO expander 22-Apr-2009
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	XRA1402IG16-0B	409Kb / 14P	8-BIT SPI GPIO EXPANDER
STMicroelectronics	STMPE812	626Kb / 51P	S-Touch® enhanced 4-wire resistive touchscreen controller with PWM 25-Feb-2011