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BU21078MUV Fiches technique(PDF) 1 Page - Rohm |
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1 / 17 page BU21072MUV ○Product structure:Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays 1/14 TSZ02201-0Y2Y0FZ00020-1-2 © 2012 ROHM Co., Ltd. All rights reserved. 12.Mar.2012 Rev.001 www.rohm.com TSZ22111・14・001 Capacitive Controller ICs Capacitive Switch Controller ICs BU21072MUV / BU21078MUV ● Key Specifications ■ Input voltage range ■ Operating temperature range ■ Operating current ■ Scan rate 3.0 to 3.6V (Typ.) -25 to 85℃ (Typ.) 3.5mA (Typ. without load) 16msec (Typ.) ● General Description BU21072MUV/BU21078MUV is a capacitive sensor controller for switch operation. In addition to a regular simple switch, support matrix switches which are arranged in the matrix sensors. If external noise and temperature drift are detected, the automatic self-calibration is operated. Include LED controller with PWM function. ● Features ■ 10 capacitive sensor ports. (BU21072MUV) 12 capacitive sensor ports. (BU21078MUV) ■ Supported Matrix switches. Maximum 16 switches. (BU21072MUV) Maximum 36 switches. (BU21078MUV) ■ Automatic self-calibration. ■ Held touch detection. ■ LED controller with PWM function. ■ Inform the detected result of switch operation by interrupt. ■ 2-wire serial bus interface. ■ 3.3V single power supply. ■ Built-in Power-On-Reset and Oscillator. ● Applications ■ Appliance that require multiple switches. ■ Information appliance as printer. ■ AV appliance as digital TV and HDD recorder. ■ Notebook PC. ● Packages BU21072MUV : VQFN024V4040 4.00 ㎜×4.00 ㎜×1.00 ㎜ BU21078MUV : VQFN028V5050 5.00 ㎜×5.00 ㎜×1.00 ㎜ VQFN024V4040 VQFN028V5050 ● Typical Application Circuit Fig.1 Typical Application Circuit |
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