Rohm Breadcrumb

Rohm Productdetail

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 | BU21078FV-E2
Status | Active
Package | SSOP-B28
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | 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.