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Capacitive Switch Controller ICs - BU21078FV

BU21078FV 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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BU21078FV-E2 Active SSOP-B28 2000 2000 Taping Yes
 
Specifications:
Vcc(Min.)[V] 3.0
Vcc(Max.)[V] 5.5
Sensor input channels 12
LED control channels 8
Interface I2C
Matrix key 6 x 6
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 85
Features:
    • 12 capacitive sensor ports.
    • Supported Matrix switches. Maximum 36 switches.
    • Automatic self-calibration.
    • Continued touch detection.
    • LED controller with PWM function.
    • Inform the detected result of switch operation by interrupt.
    • 2-wire serial bus interface.
    • Single power supply.
    • Built-in Power-On-Reset and Oscillator.
 
 
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Technical Data
Application Note

Thermal Resistance

NE Handbook Series

Sensor Networks