1FEATURES

234• 4-Wire Touch Screen Interface

• Single 1.6V to 3.6V Supply/Reference

• Ratiometric Conversion

• Effective Throughput Rate:

– Up to 20kHz (8-Bit) or 10kHz (12-Bit)

• Preprocessing to Reduce Bus Activity

• I2C Interface Supports:

– Standard, Fast, and High-Speed Modes

• Simple, Command-Based User Interface:

– TSC2003/TSC2007 Compatible

– 8- or 12-Bit Resolution

• On-Chip Temperature Measurement

• Touch Pressure Measurement

• Digital Buffered PENIRQ

• On-Chip, Programmable PENIRQ Pull-Up

• Comprehensive Reset Schemes:

– Power-On, Software, and Hardware Resets

• Auto Power-Down Control

• Low Power (12-Bit):

– 39.31μA at 1.8V, Fast Mode, 8.2kHz Eq Rate

– 53.32μA at 2.7V, Fast Mode, 8.2kHz Eq Rate

• Enhanced ESD Protection for IEC Testing:

– ±8kV HBM

– ±1kV CDM

– ±25kV Air Gap Discharge

– ±15kV Contact Discharge

• 2.1 x 1.6 WCSP-12 Package

APPLICATIONS

• Cellular Phones

• PDA, GPS, and Media Players

• Portable Instruments

• Point-of-Sale Terminals

• Multiscreen Touch Control Systems

DESCRIPTION

The TSC2017 is a very low-power touch screen

controller designed to work with power-sensitive,

handheld applications that are based on an advanced

low-voltage processor. It works with a supply voltage

as low as 1.6V, which can be supplied by a

single-cell battery. It contains a complete, ultra-low

power, 12-bit, analog-to-digital (A/D) resistive touch

screen converter, including drivers and the control

logic to measure touch pressure.

In addition to these standard features, the TSC2017

offers preprocessing of the touch screen

measurements to reduce bus loading, thus reducing

the consumption of host processor resources that can

then be redirected to more critical functions.

The TSC2017 supports I2C serial bus and data

transmission protocol in all three defined modes:

standard, fast, and high-speed. It offers

programmable resolution of 8 or 12 bits to

accommodate different screen sizes and performance

needs.

The TSC2017 is available in a 12-lead,

(1.555 ±0,055mm) x (2.055 ±0,055mm), 3 x 4 array,

wafer chip-scale package (WCSP). The TSC2017 is

characterized for the –40°C to +85°C industrial

temperature range.