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BU21023GUL データシート(PDF) 1 Page - Rohm

部品番号 BU21023GUL
部品情報  Resistive Type Touch Screen Controller ICs
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メーカー  ROHM [Rohm]
ホームページ  http://www.rohm.com
Logo ROHM - Rohm

BU21023GUL データシート(HTML) 1 Page - Rohm

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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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