CY8C4246AXI-M445

Overview

The CY8C4246AXI-M445 is a 32-bit microcontroller from the Infineon PSoC 4200M series, featuring an ARM Cortex-M0 core operating at a maximum frequency of 48 MHz. It integrates 64 kB of Flash program memory and 8 kB of SRAM data memory within a 64-TQFP package. The device provides 51 general-purpose I/O pins and includes one 12-bit SAR ADC module capable of 1 MSPS sampling. Power supply ranges from 1.71 V to 5.5 V, with an operational temperature range of -40°C to +85°C.

Feature Summary

• Integrates programmable analog blocks for mixed-signal applications
• Supports capacitive sensing (CAPSENSE) functionality
• Includes direct LCD drive capability
• Features multiple serial communication blocks for flexible connectivity

Applications

• Battery-powered portable devices requiring low power consumption
• Industrial control systems utilizing programmable analog signals
• Consumer electronics with LCD display interfaces
• Smart home automation controllers

Procurement Notes

Verify the specific suffix M445 corresponds to the 64-TQFP package and commercial temperature grade during procurement. Confirm RoHS compliance status as indicated in official documentation. Ensure ESD handling procedures are followed due to moisture sensitivity classification. Cross-reference the manufacturer part number with authorized distributor listings to avoid counterfeit components.

Selection Notes

Select this component when a balance of processing speed and analog flexibility is required. The PSoC 4200M architecture allows customization of digital and analog peripherals. Consider the 64 kB memory limit for application firmware size. Evaluate the 51 available I/O pins against system interface requirements before finalizing the design choice.

Part Context

This MCU belongs to the PSoC 4 family, designed for cost-sensitive embedded applications. It combines a standard ARM Cortex-M0 processor with Cypress's proprietary programmable interconnect. The series targets applications needing both digital control and analog signal conditioning without external support chips.

Replacement Considerations

Check for pin-compatible alternatives within the same PSoC 4200M series that offer different memory sizes or package options. Verify if upgraded cores like Cortex-M0+ are necessary for performance gains.