Skip to main content
Infineon Technologies CY8CMBR3108-LQXIT — Discrete Semiconductors
Infineon Technologies

CY8CMBR3108-LQXIT CapSense Button Controller, 1.8V-5.5V, I²C

MPNCY8CMBR3108-LQXIT
End of Life

Infineon CapSense® Express™ SmartSense™ capacitive touch controller, CY8CMBR3108-LQXIT, Type Buttons, up to 8 inputs, I²C interface, 1.8V to 5.5V supply, 16-UFQFN Exposed Pad package, -40°C to 85°C operating temperature.

$2.8Ref. price · indicative, final on quote
CY8CMBR3108-LQXIT datasheet
Packaging16-UFQFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

CY8CMBR3108-LQXIT Technical Specifications
ParameterValue
TypeButtons
SeriesCapSense® Express™ SmartSense™
Mounting typeSurface Mount
Voltage1.8V ~ 5.5V
Current - supply140mA
Number of inputsUp to 8
InterfaceI²C
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
Case16-UFQFN Exposed Pad
LED driver channelsUp to 4
Proximity detectionYes

Product details

Capacitive touch controller for button arrays

The Infineon CY8CMBR3108-LQXIT is a dedicated capacitive touch-sense controller from the CapSense® Express™ SmartSense™ series, designed to replace mechanical buttons with touch interfaces. It handles up to 8 capacitive touch inputs and includes proximity detection, so a finger approaching the surface can wake the system before a button is pressed. The part communicates over I²C, making it a straightforward add-on to any host MCU that has a spare I²C bus. Four integrated LED driver channels provide backlighting for the touch buttons, reducing external component count.

Lifecycle and sourcing

It is ROHS3 compliant. For current pricing and availability, submit an RFQ — we source through independent distribution and confirm both at quote time. No lead-time or stock figures are published here; the quote will reflect real-time supply.

Frequently asked questions

Does CY8CMBR3108-LQXIT support proximity detection?

Yes, proximity detection is supported. The controller can detect a finger approaching the touch surface before contact, enabling wake-on-approach or presence sensing.

Is CY8CMBR3108-LQXIT a direct replacement for CY8CMBR3108?

The CY8CMBR3108-LQXIT is the tape-and-reel variant of the base CY8CMBR3108. Electrically and functionally they are identical; the suffix 'T' indicates reel packaging. Check the specific package code (16-QFN) and temperature range to confirm fit for your board.

How do I get current pricing and availability for CY8CMBR3108-LQXIT?

Submit an RFQ through this listing. Pricing and stock are confirmed at quote time — no figures are published here because they change with market conditions.