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TSC2008IYZGT 数据表(PDF) 1 Page - Texas Instruments |
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TSC2008IYZGT 数据表(HTML) 1 Page - Texas Instruments |
1 / 8 page ® TSC2007 1 FEATURES APPLICATIONS DESCRIPTION PENIRQ SPI Serial Interface and Control CS SDI X+ X- Y+ Y- AUX TEMP Mux VDD/REF GND SAR ADC Internal Clock Touch Screen Drivers Interface SCLK SDO TSC2008 www.ti.com ...................................................................................................................................................................................................... SBAS406 – JUNE 2008 1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPI™ • Cellular Phones 23 • 4-Wire Touch Screen Interface • PDA, GPS, and Media Players • Single 1.2V to 3.6V Supply/Reference • Portable Instruments • Ratiometric Conversion • Point-of-Sale Terminals • Effective Throughput Rate: • Multiscreen Touch Control – Up to 20kHz (8 Bit) or 10kHz (12 Bit) • Preprocessing to Reduce Bus Activity • SPI Interface The TSC2008 is a very low-power touch screen • Simple, Command-Based User Interface: controller designed to work with power-sensitive, – TSC2046 Compatible handheld applications that are based on advanced low-voltage processors. It works with a supply voltage – 8- or 12-Bit Resolution as low as 1.2V, which can be supplied by a • On-Chip Temperature Measurement single-cell battery. It contains a complete, ultra-low • Touch Pressure Measurement power, 12-bit, analog-to-digital (A/D) resistive touch screen converter, including drivers and the control • Digital Buffered PENIRQ logic to measure touch pressure. • On-Chip, Programmable PENIRQ Pullup In addition to these standard features, the TSC2008 • Auto Power-Down Control offers preprocessing of the touch screen • Low Power: measurements to reduce bus loading, thus reducing – 32.4 µA at 1.2V, Fast Mode, 8.2kHz Eq Rate the consumption of host processor resources that can then be redirected to more critical functions. – 43.8 µA at 1.8V, Fast Mode, 8.2kHz Eq Rate – 58.4 µA at 2.7V, Fast Mode, 8.2kHz Eq Rate The TSC2008 supports an SPI serial bus and data transmission protocol in all three defined modes: • Software Reset standard, fast, and high-speed. It offers • Enhanced ESD Protection: programmable resolution of 8 or 12 bits to – ±8kV HBM accommodate different screen sizes and performance needs. – ±1kV CDM – Target ±25kV Air Gap Discharge The TSC2008 is available in a 12-lead, (1,555 ±0,055mm) x (2,055 ±0,055mm) 3 x 4 array, – Target ±15kV Contact Discharge wafer chip-scale package (WCSP), and a 16-pin, • 1.5 x 2 WCSP-12 and 4 x 4 QFN-16 Packages 4 x 4 QFN package. The TSC2008 is characterized U.S. Patent No. 6246394; other patents pending. for the –40°C to +85°C industrial 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 SPI is a trademark of Motorola Inc. 3 All other trademarks are the property of their respective owners. PRODUCT PREVIEW information concerns products in the Copyright © 2008, Texas Instruments Incorporated formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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