Capacitive Switch Controller IC - BU21079F

BU21079F is a capacitive switch controller used for operating switches. Low power consumption is achieved using the intermittent operation mode. In addition to a regular simple switch, it supports matrix switches which are arranged in the matrix sensors. If external noise and temperature drift are detected, the automatic self-calibration is activated.

* This is a standard-grade product.
For Automotive usage, please contact Sales.
Part Number | BU21079F-E2
Status | Recommended
Package | SOP16
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

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

Features:

·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