1

FEATURES

APPLICATIONS

DESCRIPTION

CDAC

SAR

Comparator

MUX

I C

Interface

and

Control

Logic

2

SCL

SDA

A0

A1

Internal

Clock

Internal

2.5-V REF

TEMP0

TEMP1

PENIRQ

Channel Select

V

DD

V

DD

X+

X–

Y+

Y–

V

BAT1

V

BAT2

V

REF

IN1

IN2

TSC2003-Q1

www.ti.com ........................................................................................................................................................................................... SBAS454 – DECEMBER 2008

I2C TOUCH SCREEN CONTROLLER

• Personal Digital Assistants

2

• Qualified for Automotive Applications

• Portable Instruments

• 2.5-V To 5.25-V Operation

• Point-of-Sale Terminals

• Internal 2.5-V Reference

• Pagers

• Direct Battery Measurement (0.5 V To 6 V)

• Touch Screen Monitors

• On-Chip Temperature Measurement

• Cellular Phones

• Touch-Pressure Measurement

• I2C Interface Supports: Standard, Fast, And

High-Speed Modes

• Auto Power Down

• TSSOP-16 Package

The TSC2003 is a 4-wire resistive touch screen controller. It also features direct measurement of two batteries,

two auxiliary analog inputs, temperature measurement, and touch-pressure measurement.

The TSC2003 has an on-chip 2.5-V reference that can be utilized for the auxiliary inputs, battery monitors, and

temperature-measurement modes. The reference can also be powered down when not used to conserve power.

The internal reference operates down to 2.7-V supply voltage while monitoring the battery voltage from 0.5 V to

6 V.

The TSC2003 is available in the small TSSOP-16 package and is specified over the –40°C to 85°C temperature

range.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.