Capacitive Switch Controller IC - BU21077MUV
BU21077MUV is a capacitive switch controller for switch operation. BU21077MUV has programmable MPU and it control the sensing sequence and how to use value of sensor. It is possible to reduce operational current with devising a sensing sequence.
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Specifications:
Vcc(Min.)[V]
2.7
Vcc(Max.)[V]
5.5
Sensor input channels
8
Interface
I2C
Matrix key
Variable
Operating Temperature (Min.)[℃]
-20
Operating Temperature (Max.)[℃]
85
Features:
- Programmable MPU
- 8 Capacitive Sensor Ports
- 2-Wire Serial Bus Interface
- Single Power Supply
- Built-in Power-On-Reset and Oscillator