CY8CTST200-48LTXI

Application Specific Microcontrollers Overview

The CY8CTST200-48LTXI is a TrueTouch single-touch touchscreen controller from the PSoC CY8CTST200 series, manufactured by Infineon Technologies. It integrates an M8C CPU core with 32 kB of Flash program memory and operates at a maximum frequency of 24 MHz. The device features 44 I/O pins in a 48-pin QFN package (5 x 5 mm). Key system resources include programmable digital modules, comparators, and interfaces such as I2C, SPI, UART, and Full-Speed USB. It supports multiple analog sensing approaches including Positive Charge Integration and Relaxation Oscillator for touch detection.

Application Specific Microcontrollers Feature Summary

• M8C CPU Core: 8-bit processor with 32 kB Flash and integrated RAM paging capabilities.
• TrueTouch Module: Supports multiple sensing approaches including Positive Charge Integration, Relaxation Oscillator, Successive Approximation, Negative Charge Integration, and Sigma Delta.
• Analog Peripherals: Includes an I/O Analog Multiplexer and programmable Comparators for signal processing.
• Communication Interfaces: Equipped with I2C Slave (EZI2C), SPI, UART, and Full-Speed USB controllers.

Application Specific Microcontrollers Applications

• Single-touch capacitive touchscreen applications
• Human-machine interface (HMI) controllers
• Embedded systems requiring integrated touch sensing and communication

Application Specific Microcontrollers Part Context

This component belongs to the PSoC CY8CTST200 family of TrueTouch controllers. The document provided is the Technical Reference Manual (TRM) covering both CY8CTMG20x and CY8CTST200 series devices. The manufacturer was originally Cypress Semiconductor Corporation, which is now part of Infineon Technologies.

Application Specific Microcontrollers FAQ

What are the supported TrueTouch sensing approaches?

The device supports Positive Charge Integration, Relaxation Oscillator, Successive Approximation, Negative Charge Integration, and Sigma Delta methods.

What is the maximum operating frequency of the CPU core?

The internal main oscillator (IMO) allows the M8C CPU core to operate at a maximum frequency of 24 MHz.

Which communication interfaces are available on this controller?

The controller includes I2C Slave (with EZI2C mode), SPI, UART, and Full-Speed USB interfaces.