CY8C4246AZI-M445

Overview

The CY8C4246AZI-M445 is a 32-bit microcontroller from the Infineon PSoC 4200M series, featuring an ARM Cortex-M0 core operating at 48 MHz. It integrates 64 KB of flash memory and 8 KB of SRAM within a 64-TQFP package. The device supports a supply voltage range of 1.71 V to 5.5 V and operates between -40°C and +85°C. Key peripherals include four Serial Communication Blocks (SCB), eight TCPWM modules, two low-power comparators, and one 12-bit SAR ADC with 1 MSPS sampling rate.

Feature Summary

• Integrates programmable analog and digital blocks for custom system-on-chip configurations
• Supports capacitive sensing applications via CapSense technology
• Includes multiple serial communication interfaces for versatile connectivity
• Features low-power operation modes suitable for battery-powered devices

Applications

• Industrial control systems requiring programmable logic
• Consumer electronics utilizing capacitive touch interfaces
• Smart home appliances with LCD display drivers
• Portable medical devices needing precise analog signal processing

Procurement Notes

Verify the specific suffix M445 corresponds to the 64-TQFP package and commercial temperature grade during procurement. Confirm RoHS compliance status as per current manufacturer documentation. Ensure ESD handling procedures are followed due to moisture sensitivity level 3 classification. Cross-reference the full part number with official Infineon databases to avoid confusion with similar PSoC 4 variants.

Selection Notes

Select this component when a balance of moderate flash capacity and extensive I/O count is required. The PSoC architecture allows customization of peripheral functions, reducing external component count. Consider the 48 MHz clock speed for real-time processing needs. Evaluate power consumption requirements against the available low-power modes. Ensure the 64-pin form factor fits the target PCB layout constraints.

Part Context

This MCU belongs to the PSoC 4200M family, designed for cost-sensitive applications requiring high integration. The series combines a standard ARM Cortex-M0 processor with Cypress's proprietary programmable interconnect fabric. This architecture enables flexible hardware acceleration and analog signal conditioning on a single chip, distinguishing it from traditional general-purpose microcontrollers.

Replacement Considerations

Check for direct pin-compatible upgrades within the PSoC 4200M series. Verify software compatibility if migrating to higher-performance cores like Cortex-M4. Confirm peripheral availability matches the original design requirements.