電容式開關控制IC - BU21079F
BU21079F是針對開關操作的靜電容量開關控制器。通過間歇動作模式實現低功耗。除在每個開關中使用1個感測器外，也可將矩陣狀配置多個感測器的交點用作1個開關。依據檢測結果感知溫度漂移、外來噪音，實施自動校準。
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規格:
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
功能:
·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