CYTMA445-44LQI33AE

Description：IC SCREEN CNTRL 32BIT 44QFN
Series：TrueTouch™

SKU:df11c96d25fe Category: Touch Screen Controllers Brand: Infineon Technologies

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Product introduction

Product Detailed Parameters

Description：IC SCREEN CNTRL 32BIT 44QFN
Series：TrueTouch™
Mfr：Infineon Technologies
Package：Tray
Touchscreen：2 Wire Capacitive
Resolution (Bits)：32 b
Interface：I2C, SPI
Voltage Reference：-
Voltage - Supply：1.71V ~ 5.5V
Operating Temperature：-
Mounting Type：Surface Mount
Package / Case：44-UFQFN Exposed Pad
Supplier Device Package：44-QFN (5x5)
Current - Supply：-
Grade：-
Qualification：-

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CYTMA445-44LQI33AE

Overview

The CYTMA445-44LQI33AE is a multi-touch capacitive touchscreen controller manufactured by Infineon Technologies (formerly Cypress). It integrates a 32-bit ARM Cortex CPU with specialized noise suppression technologies, including ChargerArmor for immunity to charger noise and DualSense for water rejection. The device supports up to 10 simultaneous touch points and operates within a supply voltage range of 1.71 V to 5.5 V. Packaged in a 44-QFN (5x5 mm) surface-mount format, it utilizes I²C and SPI interfaces for system communication.

Feature Summary

Multi-touch capacitive control supporting up to 10 fingers with thin gloves (≤1-mm) or 2 fingers with thick gloves (≤5-mm)
Integrated ChargerArmor technology for enhanced noise immunity against battery charger interference
DualSense technology enabling wet-finger tracking and water rejection capabilities
Supports screen sizes up to 5.0-inch diagonal with up to 36 sense pins and 299 intersections

Applications

Smartphone and tablet human-machine interfaces
Portable consumer electronics requiring glove operation
Industrial HMI panels exposed to moisture or charging environments
Automotive infotainment systems

Part Context

This component belongs to the CYTMA445 family of multi-touch all-points touchscreen controllers. It is designed as a register-configurable solution that allows field upgrades via bootloader and includes Android driver support. The part is distinct from general-purpose microcontrollers, focusing specifically on sensor signal processing and touch event reporting.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Selection should focus on compatible pinouts and interface requirements (I²C/SPI) when evaluating alternatives.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.