CY8CTST242-LQI-01T

Application Specific Microcontrollers Overview

The CY8CTST242-LQI-01T is a TrueTouch single-touch touchscreen controller manufactured by Cypress Semiconductor. It integrates an ARM Cortex-M0 processor with capacitive sensing capabilities for human-machine interface applications. The device operates within a supply voltage range of 1.71 V to 5.5 V and supports standard communication interfaces including I2C, SPI, and UART. It is housed in a QFN-32 package suitable for surface-mount assembly.

Application Specific Microcontrollers Feature Summary

• Integrated TrueTouch capacitive touch sensing technology
• Built-in ARM Cortex-M0 processor core
• Supports I2C, SPI, and UART communication protocols
• Operates on a wide voltage range from 1.71 V to 5.5 V

Application Specific Microcontrollers Applications

• Single-touch capacitive touch panels
• Human-machine interface (HMI) controllers
• Consumer electronics input devices

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix '01T' against official Infineon or Cypress documentation to confirm tape-and-reel packaging status. Confirm current lifecycle status as some sources indicate end-of-life conditions for related variants. Ensure compatibility with existing firmware if replacing older CY8CTST series components.

Application Specific Microcontrollers Selection Notes

Select this component for designs requiring integrated touch processing without external MCU dependency. Verify pinout compatibility with the QFN-32 footprint. Check that the required operating temperature range aligns with the -40°C to +85°C specification typical for this family.

Application Specific Microcontrollers Part Context

This part belongs to the CY8CTST242 series of TrueTouch controllers. It represents a transition period where Cypress Semiconductor products are managed under Infineon Technologies following the acquisition. The 'LQI' designation indicates the lead-free QFN package type.

Application Specific Microcontrollers Replacement Considerations

Direct substitutes include other CY8CTST242 variants such as CY8CTST242-LQI-01. Cross-reference with CY8CTST110 or CY8CTST120 series only if system requirements allow for different feature sets or package sizes.