CY8C4246AZA-M443

Overview

The CY8C4246AZA-M443 is an ARM Cortex-M0 microcontroller within the PSoC 4200M series. It features a 48 MHz maximum clock frequency, 64 kB of Flash program memory, and 8 kB of SRAM data RAM. The device provides 38 I/O pins and includes a 12-bit SAR ADC with a sampling rate up to 1 msps. It supports I2C, SPI, and UART interfaces via SCB modules. Operating voltage ranges from 1.71 V to 5.5 V, with a working temperature range of -40°C to +85°C. It is housed in a TQFP-48 package.

Feature Summary

• Integrates CAPSENSE technology for capacitive touch sensing applications
• Includes LCD direct drive capability for display interfacing
• Features two low-power comparators for analog signal processing

Applications

• General-purpose embedded control systems
• Human-machine interface (HMI) legacy designs
• Battery-powered devices requiring wide voltage operation

Procurement Notes

Verify component authenticity through authorized Infineon distributors or certified partners. Confirm the specific suffix M443 corresponds to the required tape-and-reel or tray packaging configuration. Check current supply status as availability may be limited. Ensure RoHS compliance documentation matches regional regulatory requirements. Validate that the TQFP-48 package variant meets PCB footprint specifications.

Selection Notes

Select this model when a balance of moderate flash capacity and extensive GPIO count is required. The 48 MHz performance suits applications needing efficient code execution without high power consumption. Consider the 1.71 V minimum voltage for battery-operated systems. Verify that the 38 available I/Os meet pinout constraints compared to other PSoC 4 variants.

Part Context

This part belongs to the PSoC 4200M family, designed for cost-sensitive, low-power applications. It combines programmable analog and digital blocks with an ARM Cortex-M0 core. The architecture allows for flexible peripheral customization, reducing external component count. It targets consumer electronics and industrial control where small form factors are critical.

Replacement Considerations

Check for CY8C4246AZI-L445 if L-Series features are needed. Verify CY8C4246AXI-M443 for identical electrical specs but potential package differences. Consult official substitution guides for pin-compatible alternatives within the PSoC 4 portfolio.