CY8C21234-24SXIT

Overview

The CY8C21234-24SXIT is an 8-bit microcontroller from Infineon's PSoC family, utilizing the M8C core. It features 8 kB of Flash program memory and 512 bytes of SRAM. The device supports a maximum clock frequency of 24 MHz and operates within a voltage range of 2.4 V to 5.25 V. It includes a 10-bit ADC with 28 channels, two analog comparators, and an 8-bit DAC. The component provides 12 general-purpose I/O pins and supports I2C, SPI, and UART interfaces. It is housed in a 16-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates CapSense technology for capacitive touch sensing applications
• Includes programmable analog blocks such as comparators and a DAC
• Supports multiple serial communication protocols including I2C, SPI, and UART

Applications

• Capacitive touch interface controllers
• Low-power embedded control systems
• Battery-operated devices requiring analog signal processing

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging versus 'I' for tube. Confirm RoHS compliance status through official documentation. Ensure the specific speed grade matches design requirements. Check for moisture sensitivity classification prior to soldering. Validate pinout compatibility with existing PCB layouts.

Selection Notes

Select this model for designs requiring integrated analog peripherals alongside digital control. The M8C core offers efficient code execution for 8-bit applications. Consider the 28-channel ADC capability for sensor-heavy projects. Evaluate power consumption against the 2.4V minimum supply requirement. Compare pin counts with other variants in the CY8C21x34 series.

Part Context

This component belongs to the Infineon PSoC 2100 series, designed for mixed-signal applications. It combines a standard 8-bit CPU with configurable analog and digital blocks. The series targets cost-sensitive markets needing flexible peripheral integration. It serves as a replacement for traditional discrete MCU and analog circuit combinations.

Replacement Considerations

Check for direct substitutes within the CY8C21x34 family with compatible pinouts. Verify if higher-speed variants like the 24MHz version are available in equivalent packages. Ensure software compatibility when migrating between different flash sizes in the same series.