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BU21024FV-M Datasheet(PDF) 1 Page - Rohm |
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BU21024FV-M Datasheet(HTML) 1 Page - Rohm |
1 / 18 page 1/17 www.rohm.com 2011.08 - Rev.A © 2011 ROHM Co., Ltd. All rights reserved. Touch Screen Controller ICs Resistive Type Touch Screen Controller ICs BU21023GUL, BU21023MUV, BU21024FV-M ● Description Unlike most resistive touch screen controllers, the BU21023/ BU21024 4-wire resistive touch screen controllers enable dual-touch detection and gesture recognition. These intelligent controllers expose a set of registers to a host processor and are software configurable. 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 panel development which reduces development cost and results in faster time to market across a family of products. ● Features 1) Enables single touch, dual touch & gesture recognition using standard 4-wire resistive touch panels 2) Adjustable touch detection threshold allows fine tuning of pressure sensitivity for an application 3) Enables measurement of single point touch pressure 4) SPI and I 2C like interface for interfacing to host processor 5) Programmable interrupt polarity 6) 10-bit ADC provides sufficient resolution for finger or stylus inputs 7) Firmware for internal CPU may be downloaded from Host processor or from an EEPROM 8) Includes filtering options to eliminate false coordinates 9) Built in support for intelligent calibration 10) Easy to swap X & Y coordinates or adapt to different touch panel connections 11) Single 3V power supply 12) Available in a range of small package sizes and temperature ranges 13) Ideally suited for large volume automotive, consumer and industrial applications ● Application ・ Products with a LCD that can benefit from pan and zoom operations. ・ Smart phones, Digital Cameras, Video Cameras, GPS Receivers, Printers, Copiers, automotive navigation panels, touch kiosks ・ Tablet PCs , Notebook computers, LCD displays (with USB interface) ● Line up matrix Parameter BU21023GUL BU21023MUV BU21024FV-M Screen 4-wire resistive touch screen 4-wire resistive touch screen 4-wire resistive touch screens Maximum detection point 2 2 2 Integrated Filter process Yes Yes Yes Gesture Detection Yes Yes Yes Supplied Voltage Range(V) 2.7 - 3.6 2.7 - 3.6 2.7 - 3.6 Temperature Range(℃) -20 - 85 -20 - 85 -40 - 85 Host I/F 4-wire SPI 2-wire serial 4-wire SPI 2-wire serial 4-wire SPI 2-wire serial PKG VCSP50L2 VQFN028V5050 SSOP-B28 No.11105EAT01 |
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