CY8C21345-24PVXA

Overview

The CY8C21345-24PVXA is an 8-bit microcontroller from the Cypress PSOC1 CY8C21xxx series, featuring an M8C core. It integrates 8KB of Flash program memory and 512 bytes of RAM. The device operates at a maximum clock speed of 24MHz with an internal oscillator. It supports a supply voltage range of 3V to 5.25V and includes three 10-bit analog-to-digital converters. Connectivity options include I2C, IrDA, SPI, and UART/USART interfaces. The component provides 24 programmable I/O pins and is housed in a 20-SSOP package.

Feature Summary

• Integrates configurable analog and digital peripherals within a single system-on-chip architecture to reduce external component count.
• Includes CapSense technology for robust capacitive touch sensing with high noise immunity.
• Features an 8-bit M8C processor core with Harvard architecture for efficient code execution.

Applications

• Capacitive touch interface controllers
• Industrial control systems
• Consumer electronics input devices

Procurement Notes

Verify the specific suffix PVXA against official Infineon or Cypress documentation to confirm the 20-SSOP package and temperature range. Ensure compatibility with existing board layouts regarding pinout dimensions. Confirm RoHS compliance status through current manufacturer certificates before procurement.

Selection Notes

Select this part when a compact 20-pin solution is required for mixed-signal applications. It is suitable for designs needing integrated touch sensing capabilities without additional discrete components. Consider the 24MHz processing speed and available I/O count relative to system complexity.

Part Context

This component belongs to the PSOC1 family, which combines a microcontroller with programmable analog and digital blocks. The CY8C21345 variant specifically targets applications requiring moderate performance and integrated sensor interfaces. It represents a cost-effective solution for reducing bill-of-materials in embedded systems.

Replacement Considerations

Check for CY8C21345-24SXI for a SOIC package alternative. Verify CY8C21312-24PVXA if fewer I/O pins are acceptable. Consult official substitution guides for pin-compatible upgrades within the CY8C21xxx series.

FAQ

Does the CY8C21345 support capacitive touch sensing?

Yes, it integrates CapSense technology for direct capacitive touch detection.

What is the maximum operating frequency?

The internal oscillator supports a maximum clock speed of 24MHz.