CY8CTST100-32LKXI

Application Specific Microcontrollers Overview

The CY8CTST100-32LKXI is a TrueTouch single-touch touchscreen controller manufactured by Cypress Semiconductor. It integrates a capacitive sensing interface designed for human-machine interaction in portable devices. The component operates within a supply voltage range of 1.71V to 5.5V and utilizes a QFN-32 package measuring 5 x 5 mm with a height of 0.93 mm. It functions as a multifunction peripheral supporting serial communication protocols for data transfer between the touch sensor array and a host processor.

Application Specific Microcontrollers Feature Summary

• TrueTouch capacitive sensing technology for single-touch input
• Integrated MCU core with 32KB Flash memory
• Wide operating voltage range from 1.71V to 5.5V
• Compact QFN-32 package (5x5mm, 0.93mm height)

Application Specific Microcontrollers Applications

• Portable consumer electronics requiring single-touch interfaces
• Industrial control panels with capacitive touch inputs
• Automotive infotainment systems

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix '32LKXI' against official Cypress documentation to confirm pinout compatibility and lead-free status. Ensure the source document explicitly identifies this part number as a TrueTouch controller rather than a generic multifunction peripheral. Cross-reference the manufacturer's current product status to determine availability.

Application Specific Microcontrollers Selection Notes

Select this component when a dedicated single-touch controller with integrated processing capabilities is required. The wide voltage range supports direct interfacing with various logic levels without additional level shifters. The QFN-32 form factor is suitable for space-constrained PCB layouts in handheld devices.

Application Specific Microcontrollers Part Context

This part belongs to the Cypress TrueTouch family, which focuses on capacitive touch solutions. It differs from the CY8C32 series PSoC devices by specializing in touch sensing rather than general-purpose programmable logic. The CY8CTST100 variant represents an earlier generation compared to newer multi-touch controllers in the same portfolio.

Application Specific Microcontrollers Replacement Considerations

Direct replacements include other CY8CTST100 variants with different package options such as CY8CTST100-32LTXI. Verify that any substitute maintains the same QFN-32 footprint and electrical characteristics. Check for updated firmware compatibility if migrating to newer revisions.