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Home » NEWEST Products » New by Manufacturer » Texas Instruments » TI TSC2014 Touch Screen Controller with I²C
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TI TSC2014 Touch Screen Controller with I²C

The Texas Instruments TSC2014 touch screen controller with I²C is a very low-power device designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. The TI TSC2014 works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. This TI touch screen controller contains a complete, ultralow-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 TSC2014 offers pre-processing 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 TSC2014 supports an I²C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed.

Features
  • 4-Wire Touch Screen Interface
  • Ratiometric Conversion
  • Single 1.2V to 3.6V Supply
  • Preprocessing to Reduce Bus Activity
  • High-Speed I2C-Compatible Interface
  • Internal Detection of Screen Touch
  • Register-Based Programmable:
    • 10-Bit or 12-Bit Resolution
    • Sampling Rates
    • System Timing
  • On-Chip Temperature Measurement
  • Touch Pressure Measurement
  • Auto Power-Down Control
  • Low Power:
    • 430µW at 1.8V, 50SSPS
    • 320µW at 1.6V, 50SSPS
    • 190µW at 1.2V, 50SSPS
    • 58µW at 1.6V, 8.2kSPS Eq. Rate
    • 37µW at 1.2V, 8.2kSPS Eq. Rate
Applications
  • Cellular Phones
  • Portable Instruments
  • MP3 Players, Pagers
  • Multiscreen Touch Control
Block Diagram
  • Texas Instruments
  • Semiconductors|Integrated Circuits|IC-Data Conversion