CY8CTST200A-48LTXI

Application Specific Microcontrollers Overview

The CY8CTST200A-48LTXI is a TrueTouch single-touch touchscreen controller from the PSoC CY8CTMG20x/CY8CTST200 family. It integrates an M8C CPU core, 32 KB of Flash memory, and specialized TrueTouch analog front-end modules for capacitive sensing. The device supports Full-Speed USB (USB 2.0) with two transceivers, operating at data rates up to 480 Mbps. It features I2C and SPI interfaces for system communication. The component operates within a voltage range of 1.71 V to 5.5 V and is housed in a 48-pin QFN package measuring 6 x 6 mm.

Application Specific Microcontrollers Feature Summary

• Integrated TrueTouch module supporting multiple sensing approaches including Positive Charge Integration and Relaxation Oscillator.
• Full-Speed USB interface compliant with USB 2.0 specifications, featuring two built-in transceivers.
• M8C CPU core with 32 KB Flash program memory and Supervisory ROM (SROM) for boot and code protection functions.
• Comprehensive analog peripherals including comparators, IDACs, and an I/O Analog Multiplexer for sensor signal conditioning.

Application Specific Microcontrollers Applications

• Single-touch capacitive touchscreen controllers for portable electronics.
• USB-enabled human-machine interface devices requiring integrated touch processing.
• Embedded systems utilizing TrueTouch technology for gesture or proximity detection.

Application Specific Microcontrollers Procurement Notes

Verify the specific revision suffix (e.g., LTXI) against the manufacturer's current production status, as older Cypress Semiconductor part numbers may be subject to discontinuation or lifecycle changes. Confirm that the 48-pin QFN package dimensions match the target PCB footprint requirements. Ensure compatibility with the required USB and I2C protocol implementations defined in the Technical Reference Manual.

Application Specific Microcontrollers Selection Notes

Select this component when a combined MCU and dedicated capacitive touch controller are required on a single chip. The CY8CTST200A variant offers specific electrical characteristics compared to the base CY8CTST200; verify these differences against the datasheet if precise timing or voltage thresholds are critical. Ensure the design accommodates the 1.71 V to 5.5 V supply range and utilizes the available GPIO pins for both touch electrodes and system control.

Application Specific Microcontrollers Part Context

This part belongs to the PSoC CY8CTMG20x and CY8CTST200 family, which merges standard PSoC programmable system-on-chip capabilities with Cypress's TrueTouch sensing technology. The CY8CTST200A designation indicates a specific version within this series, differentiated by minor parameter updates or manufacturing revisions from the original CY8CTST200 model while maintaining functional compatibility.

Application Specific Microcontrollers Replacement Considerations

Direct pin-to-pin replacements within the same family include the CY8CTST200-48LTXI. Other variants such as the CY8CTMG200A-48LTXI share the same package and core architecture but may lack the specific TrueTouch configuration or require firmware adaptation. Verify register-level compatibility before substituting.