CY8C21434-24LTXI

Overview

The CY8C21434-24LTXI is an 8-bit microcontroller from the Infineon PSoC™1 family, utilizing the M8C core. It features 8KB of Flash memory and 512 bytes of RAM. The device operates at a maximum frequency of 24 MHz with a supply voltage range of 2.4 V to 5.25 V. It includes one 10-bit Delta-Sigma ADC sampling at 5.9 ksps, one I2C interface, and 28 GPIO pins. The component supports CapSense technology with one channel and is housed in a 32-QFN package.

Feature Summary

• Integrates CapSense Plus technology for capacitive touch sensing capabilities
• Includes a programmable analog block featuring a delta-sigma ADC
• Provides flexible digital connectivity via I2C serial communication interface

Applications

• Capacitive touch control interfaces
• Low-power embedded systems requiring analog-to-digital conversion
• General-purpose microcontroller applications within specified voltage ranges

Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the selected variant matches your system's pin count and memory needs. Cross-reference manufacturer part numbers with distributor listings to avoid obsolete or discontinued stock issues during procurement.

Selection Notes

Select this component when an 8-bit architecture suffices for application logic. Consider the integrated CapSense functionality if touch input is required without external controllers. Verify that the 24 MHz clock speed meets processing demands. Ensure the 2.4 V to 5.25 V operating range aligns with the target power supply design constraints.

Part Context

This part belongs to the PSoC™1 series, combining programmable analog and digital blocks on a single chip. The CY8C21xxx series is designed for cost-sensitive applications requiring mixed-signal capabilities. It utilizes the M8C processor core, offering a balance between performance and power consumption for simple control tasks.

Replacement Considerations

Check for direct substitutes within the CY8C214xx series with different speed grades or package options. Verify compatibility with PSoC Designer software tools when migrating to alternative parts.