CY8C22545-24AXI

Overview

The CY8C22545-24AXI is an 8-bit microcontroller from the PSoC 1 family, featuring a 24 MHz M8C processor. It includes 16 KB of Flash program storage and 1 KB of SRAM data memory. The device provides up to 38 configurable GPIOs and supports a 3.0 V to 5.25 V operating voltage range within the industrial temperature range of –40 °C to +85 °C. Key peripherals include six analog Type E blocks, eight digital blocks, a 10-bit SAR ADC, CapSense resources, I2C, SPI, and UART interfaces.

Feature Summary

• Configurable analog and digital system architecture allowing custom peripheral creation
• Integrated CapSense technology with dedicated clock resources for touch sensing
• Flexible on-chip memory with EEPROM emulation and partial flash updates
• Programmable pin configurations with multiple drive modes and interrupt capabilities

Applications

• Embedded control systems requiring mixed-signal processing
• Touch-sensitive user interface applications using CapSense
• Industrial monitoring devices operating in wide temperature ranges
• Low-power consumer electronics with programmable I/O requirements

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure package type and temperature grade match project requirements. Confirm that the component source is authorized to guarantee authenticity and traceability. Check for any recent revisions or errata documents that may impact implementation details or electrical characteristics for this specific part number.

Selection Notes

Select this component when a flexible mixed-signal solution is needed to replace multiple discrete components. The PSoC architecture allows customization of analog and digital blocks to fit specific application constraints. Consider the available GPIO count and memory size relative to the complexity of the required peripheral configuration and firmware footprint.

Part Context

This device belongs to the Cypress Semiconductor (now Infineon) PSoC 1 family, specifically the CY8C22x45 series. These devices are designed to integrate programmable system-on-chip capabilities, combining a fast CPU with reconfigurable analog and digital hardware. The CY8C22545 variant offers a higher pin count and more GPIO resources compared to lower-end models in the same series.

Replacement Considerations

Direct substitutes within the same package and pinout include other CY8C22x45 variants such as CY8C22545-24PXI. Cross-family replacements require careful evaluation of pin compatibility and resource availability. Verify that alternative parts support the required analog block types and digital interconnect features.