CY8C27543-24AXI

Overview

The CY8C27543-24AXI is an 8-bit microcontroller from the Infineon PSoC family, utilizing the M8C core. It features 16 kB of Flash program memory and 256 bytes of SRAM data RAM. The device operates with a maximum clock frequency of 24 MHz and supports a supply voltage range of 3 V to 5.25 V. It includes one 14-bit SAR ADC, two PWM units (one 16-bit and one 8-bit), and interfaces such as SPI, I2C, and UART. The component is housed in a 44-pin TQFP package.

Feature Summary

• Integrates programmable mixed-signal peripherals within a single chip architecture.
• Includes a high-resolution 14-bit successive approximation register analog-to-digital converter.
• Provides flexible pulse width modulation capabilities with configurable bit widths.
• Supports standard serial communication protocols for system connectivity.

Applications

• Consumer electronics requiring mixed-signal processing
• Industrial control systems with sensor interface needs
• Communication equipment utilizing serial data transmission

Procurement Notes

Verify the specific suffix AXI confirms the 44-pin TQFP package and industrial temperature range during sourcing. Confirm RoHS compliance status through official documentation. Ensure the ordering quantity aligns with distributor minimum order requirements and packaging formats. Cross-reference the manufacturer part number with authorized channel listings to avoid counterfeit components.

Selection Notes

Select this model when a compact 44-pin solution is required for applications needing both digital control and precise analog signal acquisition. The combination of 16 kB Flash and 256 B RAM suits moderate complexity firmware tasks. Consider the 24 MHz operating speed for real-time processing demands. Evaluate pin count adequacy for GPIO and peripheral connections before finalizing the design.

Part Context

This component belongs to the CY8C27x43 series of PSoC mixed-signal controllers. These devices combine an 8-bit CPU with configurable analog and digital blocks. The series targets cost-sensitive applications requiring reduced board space and component count. The CY8C27543 variant specifically offers enhanced analog resolution compared to lower-tier models in the same family.

Replacement Considerations

CY8C27543-24AXIT serves as the tape-and-reel alternative to the tube-packaged CY8C27543-24AXI. Both share identical electrical characteristics and functionality. Verify package compatibility and handling requirements when substituting between these variants.