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BU21078MUV Fiches technique(PDF) 1 Page - Rohm

No de pièce BU21078MUV
Description  Capacitive Switch Controller ICs
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
Logo ROHM - Rohm

BU21078MUV Fiches technique(HTML) 1 Page - Rohm

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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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