CY8C4246LTI-L445

Overview

The CY8C4246LTI-L445 is a PSoC™ 4200L microcontroller based on the Arm® Cortex®-M0 CPU, operating at up to 48 MHz. It features 64 kB of Flash memory and 8 kB of SRAM. The device includes one 12-bit SAR ADC with a maximum sampling rate of 1 Msps. It provides 57 GPIO pins and two Smart I/O (SIO) pins. Connectivity includes four Serial Communication Blocks (SCBs), two CAN blocks, and a USB 2.0 Full-Speed Client Controller. The unit operates within a voltage range of 1.71 V to 5.5 V and supports temperatures from -40 °C to 85 °C.

Feature Summary

• Integrates programmable analog and digital subsystems for flexible in-field tuning and reconfigurable hardware design.
• Supports capacitive sensing applications via dedicated CSD blocks with automatic hardware tuning capabilities.
• Enables direct segment LCD drive functionality on any pin while maintaining low power consumption in Deep Sleep mode.
• Provides robust security through flash protection and the ability to permanently disable debug interfaces.

Applications

• Industrial control systems requiring CAN bus communication
• Battery-powered devices utilizing low-power sleep modes
• User interface designs incorporating capacitive touch sensors
• Applications displaying data on segment LCD screens

Procurement Notes

Verify the specific ordering suffix against the official Infineon datasheet to confirm package type and temperature grade. Ensure compatibility with the PSoC Creator IDE or supported third-party ARM development tools. Confirm that the selected variant meets the required I/O count and peripheral configuration for the target application before finalizing procurement.

Selection Notes

Select this component when a balance of programmable analog flexibility and standard MCU peripherals is required. The PSoC 4200L family offers upward code compatibility with higher-performance Cortex-M3 and M4 processors. Consider the available GPIO count and the presence of specific peripherals like USB or CAN when comparing against other members of the PSoC 4 portfolio.

Part Context

This part belongs to the PSoC™ 4200L family, which combines an Arm Cortex-M0 processor with programmable analog and digital blocks. The L-Series is optimized for low-power applications and includes features such as CAPSENSE technology and LCD drive support. It shares architectural similarities with the broader PSoC 4 platform, ensuring software and hardware compatibility across the ecosystem.

Replacement Considerations

Check for CY8C4246 variants with different package suffixes if the TQFP form factor is unsuitable. Other PSoC 4200L models may offer increased memory or additional peripherals. Verify that any substitute maintains the same core architecture and peripheral set to ensure firmware compatibility.

FAQ

Does the CY8C4246LTI-L445 support capacitive sensing?

Yes, it includes two Infineon Capacitive Sigma-Delta (CSD) blocks designed for capacitive sensing applications with automatic hardware tuning.

What is the maximum clock frequency of the CPU?

The Arm Cortex-M0 CPU operates at a maximum frequency of 48 MHz.

Can the device operate in Deep Sleep mode?

Yes, the device supports Deep Sleep mode, allowing for significant power savings while retaining the ability to wake up via GPIO or other interrupts.