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BU21023GUL-E2 Datasheet(PDF) 1 Page - Rohm |
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BU21023GUL-E2 Datasheet(HTML) 1 Page - Rohm |
1 / 21 page ○ Product structure:Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays . 1/17 TSZ02201-0L5L0F300840-1-2 © 2013 ROHM Co., Ltd. All rights reserved. 7.June.2016 Rev.004 TSZ22111・14・001 www.rohm.com Resistive Type Touch Screen Controller ICs BU21023GUL BU21023MUV General Description Unlike most resistive touch screen controllers, the BU21023 4-wire resistive touch screen controller enables dual-touch detection and gesture recognition. These intelligent controllers expose a set of registers to a HOST processor and are configured through software. The controllers can detect single point coordinates, dual coordinates, pinch, spread, rotate left and rotate right gestures, enabling pan and zoom operations in applications that previously had to rely exclusively on capacitive touch technology. Resistive touch does not require custom screen development which reduces development cost, and results in faster time to market across a family of products. Features Enables single touch, dual touch & gesture recognition using standard 4-wire resistive touch screens Adjustable touch detection threshold allows fine tuning of pressure sensitivity for an application Enables measurement of single point touch pressure SPI- and 2-wire serial interface for interfacing to HOST processor Programmable interrupt polarity 10-bit ADC provides sufficient resolution for finger or stylus inputs Firmware for internal CPU may be downloaded from HOST processor or from an EEPROM Includes filtering options to eliminate false coordinates Built in support for intelligent calibration Easy to swap X & Y coordinates or adapt to different touch screen connections Single 3V power supply Available in small packages and temperature ranges Ideally suited for consumer Packages W(Typ) x D(Typ) x H(Max) VCSP50L2 2.60mm x 2.60mm x 0.55mm VQFN028V5050 5.00mm x 5.00mm x 1.00mm VCSP50L2 VQFN028V5050 Applications Products with an LCD can benefit from pan and zoom operations. Smart phones, Digital Cameras, Video Cameras, GPS Receivers, Printers, Copiers, automotive navigation screens, touch kiosks Tablet PCs , Notebook PCs, LCD displays (with USB interface) Key Specifications and Lineup Parameter BU21023GUL BU21023MUV Screen 4-wire resistive touch screen 4-wire resistive touch screen Maximum Detection Point 2 2 Integrated Filter Process Yes Yes Gesture Detection Yes Yes Supplied Voltage Range(V) 2.7 to 3.6 2.7 to 3.6 Temperature Range(°C) -20 to +85 -20 to +85 Host I/F 4-wire SPI 2-wire serial 4-wire SPI 2-wire serial Package VCSP50L2 VQFN028V5050 Datasheet |
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