CY8C21434-24LKXIT

Overview

The CY8C21434-24LKXIT is an 8-bit microcontroller from the Infineon PSoC 1 family, utilizing the M8C core. It features 8 KB of Flash memory and 512 bytes of RAM. The device supports a maximum operating frequency of 24 MHz and includes one 10-bit Delta-Sigma ADC with a sampling rate of 5.9 ksps. It provides 28 GPIO pins and integrates CapSense technology for touch sensing applications.

Feature Summary

• Integrates CapSense Plus technology for capacitive touch sensing capabilities
• Includes a programmable analog block with a dedicated Delta-Sigma ADC
• Features an 8-bit M8C processor core for embedded control tasks

Applications

• Capacitive touch interface controllers
• Battery-powered portable devices
• Consumer electronics input modules

Procurement Notes

Verify the specific suffix LKXIT against official datasheets to confirm package type and tape-and-reel configuration. Confirm end-of-life status and availability through authorized distributors. Ensure compatibility with PSoC Designer software versions for development.

Selection Notes

Select this component when a low-pin-count MCU with integrated touch sensing is required. The 24 MHz speed and 28 I/Os suit simple control loops. Verify voltage range requirements match the 2.4 V to 5.25 V specification. Consider pinout compatibility if replacing existing designs.

Part Context

This part belongs to the PSoC 1 CY8C21xxx series, designed for cost-sensitive applications requiring mixed-signal processing. It combines digital logic with analog peripherals in a single chip. The series is known for its flexibility in configuring analog and digital blocks via software tools.

Replacement Considerations

Check for direct substitutes within the CY8C21434B variant or other PSoC 1 devices with matching pin counts and memory sizes. Verify functional equivalence regarding CapSense channel count and ADC resolution before substitution.