电容式开关控制器IC _BU21079F
BU21079F是面向开关操作的静电容量开关控制器。通过间歇动作模式实现低功耗。除在每个开关中使用1个传感器外，也可将矩阵状配置多个传感器的交点用作1个开关。依据检测结果感知温度漂移、外来噪音，实施自动校准。
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特性：
Vcc(Min.)[V]
3.0
Vcc(Max.)[V]
5.5
Sensor input channels
8
Interface
I2C
Matrix key
4 x 4
Operating Temperature (Min.)[°C]
-25
Operating Temperature (Max.)[°C]
85
特点：
·8 capacitive sensor ports·Supports matrix switches. Maximum of 16 switches.
·Automatic self-calibration
·Continued touch detection
·Sends an interrupt when there is a detected result of switch operation
·2-wire serial bus interface
·3.3V or 5.0V single power supply
·Built-in Power-On-Reset and Oscillator