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TSC2046IRGVR 데이터시트(PDF) 1 Page - Texas Instruments |
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TSC2046IRGVR 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 32 page FEATURES D SAME PINOUT AS ADS7846 D 2.2V TO 5.25V OPERATION D 1.5V TO 5.25V DIGITAL I/O D INTERNAL 2.5V REFERENCE D DIRECT BATTERY MEASUREMENT (0V TO 6V) D ON-CHIP TEMPERATURE MEASUREMENT D TOUCH-PRESSURE MEASUREMENT D QSPI AND SPI 3-WIRE INTERFACE D AUTO POWER-DOWN D AVAILABLE IN TSSOP-16, QFN-16, AND VFBGA-48 PACKAGES APPLICATIONS D PERSONAL DIGITAL ASSISTANTS D PORTABLE INSTRUMENTS D POINT-OF-SALE TERMINALS D PAGERS D TOUCH SCREEN MONITORS D CELLULAR PHONES US Patent No. 6246394 QSPI and SPI are registered trademarks of Motorola. DESCRIPTION The TSC2046 is a next-generation version to the ADS7846 4-wire touch screen controller which supports a low-voltage I/O interface from 1.5V to 5.25V. The TSC2046 is 100% pin-compatible with the existing ADS7846, and will drop into the same socket. This allows for easy upgrade of current applications to the new version. The TSC2046 also has an on-chip 2.5V reference that can be used for the auxiliary input, battery monitor, and temperature measurement modes. The reference can also be powered down when not used to conserve power. The internal reference operates down to 2.7V supply voltage, while monitoring the battery voltage from 0V to 6V. The low power consumption of < 0.75mW typ at 2.7V (reference off), high-speed (up to 125kHz sample rate), and on-chip drivers make the TSC2046 an ideal choice for battery-operated systems such as personal digital assistants (PDAs) with resistive touch screens, pagers, cellular phones, and other portable equipment. The TSC2046 is available in TSSOP-16, QFN-16, and VFBGA-48 packages and is specified over the –40 °C to +85 °C temperature range. CDAC Internal 2.5V Reference SAR TSC2046 Comparator 6− Channel MUX Serial Data In/Out Temperature Sensor Pen Detect Battery Monitor DOUT BUSY CS DCLK DIN V BAT AUX V REF +V CC IOVDD X+ X − Y+ Y − PENIRQ TSC2046 SBAS265G − OCTOBER 2002 − REVISED JANUARY 2008 Low-Voltage I/O TOUCH SCREEN CONTROLLER PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. www.ti.com Copyright 2002−2008, Texas Instruments Incorporated All trademarks are the property of their respective owners. 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. |
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