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Infineon Technologies CY8C20336A-24LQXIT — Discrete Semiconductors

CY8C20336A-24LQXIT CapSense Controller, 8KB Flash, 24-QFN

MPNCY8C20336A-24LQXIT
End of Life

Infineon CapSense® Controllers CY8C20336A-24LQXIT, M8C core, 8KB Flash program memory, 1K x 8 RAM, 20 I/O, I²C, SPI, 1.71V ~ 5.5V supply, -40°C ~ 85°C, 24-UFQFN Exposed Pad package.

$5.57Ref. price · indicative, final on quote
Infineon Technologies CY8C20336A-24LQXIT datasheet (PDF)
Packaging24-UFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesCapSense® Controllers
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY8C20336A-24LQXIT specifications
ParameterValue
SeriesCapSense® Controllers
MountingSurface Mount
Controller seriesCY8C20xx6A
Program memory typeFLASH (8kB)
Supply voltage1.71V ~ 5.5V
InterfaceI²C, SPI
Operating temperature-40°C ~ 85°C (TC)
PackageTape & Reel (TR); Cut Tape (CT)
RAM size1K x 8
ApplicationsCapacitive Sensing
Number of i (O)20
Core processorM8C
Case24-UFQFN Exposed Pad

Product details

CapSense touch controller for embedded HMI

The Infineon CY8C20336A-24LQXIT is a dedicated capacitive-sensing controller from the CapSense® series, built around an M8C core with 8 KB of Flash program memory and 1K x 8 of RAM. It handles touch-button, slider, and proximity sensing without a separate host MCU for the sense processing — the on-chip engine scans the capacitive channels and reports results over I²C or SPI to the system controller.

Memory and firmware considerations

8 KB of Flash holds the CapSense tuning parameters, scan sequences, and communication stack. That is enough for a handful of buttons with LED feedback and a basic I²C register map. If the application needs more than a few hundred lines of C or a complex state machine, the 1K x 8 RAM becomes the tighter constraint — watch the stack and variable allocation during development.

Frequently asked questions

Is CY8C20336A-24LQXIT RoHS compliant?

Yes, it is ROHS3 compliant.

What is the difference between CY8C20336A-24LQXIT and CY8C20336A-24LQXI?

The difference is the packaging format. The -24LQXIT suffix indicates Tape & Reel (TR) and Cut Tape (CT) options, while the -24LQXI variant typically ships in a different carrier (tube or tray). The silicon, package, and electrical specifications are identical.