CY8C4246AZI-M443

Overview

The CY8C4246AZI-M443 is an ARM Cortex-M0 microcontroller from the PSoC 4200M series. It features a maximum operating frequency of 48 MHz, 64 kByte Flash memory, and 8 kByte SRAM. The device includes one 12-bit SAR ADC with a sampling rate of 1 Msps, two low-power comparators, four Serial Communication Blocks (SCB), eight TCPWM blocks, and eight DMA channels. It provides 38 GPIO pins, supports CAPSENSE technology, and operates within a voltage range of 1.71 V to 5.5 V across temperatures from -40 °C to 105 °C.

Feature Summary

• Integrates programmable analog blocks including a 12-bit SAR ADC and low-power comparators for signal conditioning.
• Supports CAPSENSE technology for capacitive touch sensing applications without external components.
• Includes multiple serial communication interfaces via four SCB modules for flexible connectivity.
• Features eight TCPWM blocks for precise timing, counting, and PWM generation tasks.

Applications

• Battery-powered portable devices requiring low power consumption
• Industrial control systems with sensor interface requirements
• Consumer electronics utilizing capacitive touch controls
• Smart home automation hubs

Procurement Notes

Verify the specific package type and marking code corresponding to the M443 suffix during procurement. Confirm that the ordered component matches the PSoC 4200M series specifications. Ensure compatibility with the required operating temperature range and supply voltage levels for the target application environment before finalizing orders.

Selection Notes

Select this component when a balance of processing speed and analog integration is required. The 48 MHz CPU speed suits moderate complexity logic tasks. The inclusion of CAPSENSE support makes it suitable for touch interfaces. Consider the available GPIO count and peripheral resources against system design constraints to ensure adequate headroom for future expansions or complex algorithms.

Part Context

This part belongs to the Infineon PSoC 4 family, specifically the 4200M series designed for mixed-signal applications. It utilizes the ARM Cortex-M0 core architecture. The device integrates both digital logic and analog peripherals on a single chip, reducing board space and component count compared to discrete solutions. It is part of a broader ecosystem supporting various development tools and libraries.

Replacement Considerations

Check for pin-compatible alternatives within the same PSoC 4 family that offer similar peripheral counts. Verify if upgraded cores or increased memory sizes in newer revisions are necessary for performance scaling. Ensure that any substitute maintains the same package dimensions and thermal characteristics for direct replacement.

FAQ

Does the CY8C4246AZI-M443 support USB connectivity?

No, this specific model does not include a USB interface. It relies on other serial communication blocks like UART, SPI, or I2C for data transfer.

What is the maximum sampling rate of the integrated ADC?

The integrated 12-bit SAR ADC supports a maximum sampling rate of 1 Msps.

Is the device suitable for high-temperature industrial environments?

Yes, the CY8C4246AZI-M443 is rated for an extended operating temperature range from -40 °C to 105 °C.