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LDS6120-Block Diagram


20 Channel Capacitive Touch Controller with Integrated LED Driver

The LDS6120 PureTouch® capacitive touch sensor IC is a highly integrated solution that includes an integrated keypad LED driver with integrated visual effects. The device contains 20 capacitive sensor input pins, 10 of which may also be optionally configured for use as keypad LED drivers, with the other 10 optionally configurable as Direct Communication Mode (DCM) outputs to emulate mechanical button operation.


  • 20 touch sensor channels
  • 2ms update rate per active sensor
  • Built-in Slider/Scroll Support
  • Configurable hysteresis and debounce
  • Integrated LED drivers with configurable visual effects
  • 1.65-5.5v supply voltage
  • <125uW (full power), <50uW (low power)
  • I2C, SPI, SMBus serial I/F options with VDDIO
  • DCM Outputs
  • TQFN and SSOP packages available

Product Specification

Touch Voltage (V)Touch Sensors (#)Scan Rate (ms)Auto CalibrationHyst / Debounce ConfigInterfaceI/O Voltage (V)GPIOs (#)DCM Outputs (#)Pkg. Typefield__led_effects
1.65 - 5.50202.00 - 40.00YYSPI, SMBUS, I2C1.65 - 5.50110SSOP, VFQFPN

Product Options

Orderable Part IDPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
LDS6120NQGI8NQG40VFQFPN40IYesReelCheck Availability
LDS6120PVGI8PVG48SSOP48IYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
LDS6100 Family Datasheet (Rev 0.7 April 2012) Datasheet PDF 711 KB Apr 17, 2012
Apps Notes & White Papers
LDS610x Family AN2 Ref Code and Initialization Application Note PDF 1.77 MB Dec 12, 2012
PCN# : A1504-04 Assembly Transfer from Amkor Philippines to OSE Taiwan Product Change Notice PDF 484 KB Jul 2, 2015
PCN# : A1304-01 Alternate Assembly for LDS6120PVGI, LDS6120PVGI8 Product Change Notice PDF 84 KB Apr 28, 2013
IDT Pure Touch Product Selector Guide Misc PDF 19 KB Jan 27, 2011
LDS6100-6120 Register Document (Rev 0.3 - Apr 2010) Report PDF 238 KB Apr 5, 2010
IDT Touch 6100/6120 Family flyer Flyer PDF 1022 KB Dec 18, 2009