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STMPE811QTR датащи(PDF) 1 Page - STMicroelectronics |
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STMPE811QTR датащи(HTML) 1 Page - STMicroelectronics |
1 / 64 page April 2009 Doc ID 14489 Rev 2 1/64 64 STMPE811 Advanced resistive touch screen controller with 8-bit GPIO expander Features ■ 8 GPIOs ■ 1.8 - 3.3 V operating voltage ■ Integrated 4-wire touch screen controller ■ Interrupt output pin ■ Wakeup feature on each I/O ■ SPI and I2C interface ■ Up to 2 devices sharing the same bus in I2C mode (1 address line) ■ 8-input 12-bit ADC ■ 128-depth buffer touch screen controller ■ Touch screen movement detection algorithm ■ 25 kV air-gap ESD protection (system level) ■ 4 kV HBM ESD protection (device level) Applications ■ Portable media players ■ Game consoles ■ Mobile and smartphones ■ GPS Description The STMPE811 is a GPIO (general purpose input/output) port expander able to interface a main digital ASIC via the two-line bidirectional bus (I2C). A separate GPIO expander is often used in mobile multimedia platforms to solve the problems of the limited amount of GPIOs typically available on the digital engine. The STMPE811 offers great flexibility, as each I/O can be configured as input, output or specific functions. The device has been designed with very low quiescent current and includes a wakeup feature for each I/O, to optimize the power consumption of the device. A 4-wire touch screen controller is built into the STMPE811. The touch screen controller is enhanced with a movement tracking algorithm (to avoid excessive data), a 128 x 32 bit buffer and programmable active window feature. QFN16 (3x3) Table 1. Device summary Order code Package Packaging STMPE811QTR QFN16 Tape and reel www.st.com |
Аналогичный номер детали - STMPE811QTR |
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Аналогичное описание - STMPE811QTR |
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