CY8C20436-24LQXIT

Application Specific Microcontrollers Overview

The CY8C20436-24LQXIT is an 8-bit microcontroller from the PSoC 1 family, manufactured by Infineon Technologies (formerly Cypress Semiconductor). It integrates a single-cycle 8051 CPU core with CapSense touch sensing capabilities. The device features 8KB of Flash memory and 1KB of RAM. It provides 28 I/O pins and operates within a temperature range of -40°C to +85°C. The component is housed in a QFN32 package measuring 5 x 5 x 0.53mm. This part is currently listed as obsolete or having restricted supply.

Application Specific Microcontrollers Feature Summary

• Integrates CapSense touch controller technology for capacitive sensing applications
• Includes a single-cycle 8051 microprocessor core with up to 24 MHz operation
• Provides 8KB Flash program memory and 1KB RAM data memory
• Offers 28 general-purpose I/Os in a compact QFN32 package

Application Specific Microcontrollers Applications

• Capacitive touch interface controllers for consumer electronics
• Human-machine interface (HMI) input devices
• Low-power embedded control systems requiring touch functionality

Application Specific Microcontrollers Procurement Notes

Verify current availability status as the component is marked as obsolete or having restricted supply. Confirm that the manufacturer is Infineon Technologies, which acquired Cypress Semiconductor. Ensure the specific suffix matches the required package and temperature grade. Check for end-of-life notices before finalizing procurement plans.

Application Specific Microcontrollers Selection Notes

Select this part when a design requires integrated CapSense touch sensing alongside an 8051 MCU core. Verify that the 24 MHz clock speed meets processing requirements. Ensure the QFN32 package dimensions fit the PCB layout constraints. Consider the limited supply status and potential obsolescence when planning long-term production.

Application Specific Microcontrollers Part Context

This component belongs to the PSoC 1 family, specifically designed for low-cost, low-power applications with analog and digital configurability. The CY8C204xx series focuses on integrating CapSense technology directly into the MCU, reducing external component count for touch-sensitive designs.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative components must be sourced through engineering evaluation rather than direct pin-to-pin substitution lists.