CY8C21434-24LTXIAS

Overview

The CY8C21434-24LTXIAS is an 8-bit microcontroller from the Infineon PSoC1 family, featuring the M8C core operating at a maximum frequency of 24 MHz. It integrates 8 KB of Flash program memory and 512 bytes of RAM. The device includes one 10-bit Delta-Sigma ADC with a sampling rate of 5.9 ksps and supports CapSense technology with up to 1 channel. It offers 28 GPIO pins and interfaces including I2C. Operating within a voltage range of 2.4 V to 5.25 V and temperatures from -40°C to 85°C, it is housed in a 32-QFN (5x5) package.

Feature Summary

• Integrates CapSense technology for capacitive touch sensing capabilities
• Includes a programmable 10-bit Delta-Sigma analog-to-digital converter
• Features an 8-bit M8C processor core with on-chip Flash memory

Applications

• Capacitive touch interface controllers
• Battery-powered portable devices
• General-purpose embedded control systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific packaging requirements such as moisture sensitivity level handling. Review official datasheets for pinout configurations and electrical characteristics prior to integration into design schematics.

Selection Notes

Select this component for applications requiring integrated capacitive sensing alongside basic analog conversion. The 8-bit architecture suits cost-sensitive designs with moderate processing needs. Ensure the 24 MHz speed and 28 I/O count meet system requirements. Consider the 32-QFN package constraints for PCB layout and thermal management during selection.

Part Context

This part belongs to the Infineon PSoC1 CY8C21xxx series, designed for mixed-signal applications. It combines digital logic with programmable analog blocks, enabling flexible system-on-chip solutions. The series targets consumer electronics and industrial controls where low power and small form factors are critical.

Replacement Considerations

Consult official substitution guides for compatible parts within the same family. Verify pin compatibility and functional equivalence before replacing.