CY8C3244LTI-123

Overview

The Infineon CY8C3244LTI-123 is an 8-bit microcontroller from the PSoC 3 family, featuring a single-cycle 8051 CPU core. It integrates up to 64 KB of programmable Flash memory and 8 KB of SRAM within a compact 48-pin SSOP package. The device supports operating frequencies up to 50 MHz and operates across a wide voltage range of 1.71 V to 5.5 V. Key peripherals include a 12-bit Delta-Sigma ADC, CapSense touch sensing capabilities, and full-speed USB 2.0 connectivity.

Feature Summary

• Integrates a high-performance single-cycle 8051 CPU with DMA controller for efficient data handling
• Features highly configurable analog and digital subsystems including Delta-Sigma ADC and UDB arrays
• Supports low-power operation with sleep and deep sleep modes for extended battery life
• Includes built-in CapSense technology for capacitive touch interface applications

Applications

• Consumer electronics requiring capacitive touch controls
• Industrial control systems with mixed-signal requirements
• Medical devices needing precise analog signal acquisition
• USB-enabled embedded controllers and peripherals

Procurement Notes

Verify the specific ordering suffix LTI-123 against official Infineon documentation to confirm the exact package type (SSOP-48) and temperature grade. Ensure compatibility with PSoC Creator development tools and check for any RoHS compliance details in the latest datasheet revision before finalizing procurement.

Selection Notes

Select this component when a flexible mixed-signal MCU with USB capability is required. The CY8C3244 series offers extensive I/O configurability and analog precision suitable for sensor interfaces. Consider the 48-pin SSOP package constraints for PCB layout and ensure sufficient Flash and RAM resources are available for the intended firmware complexity.

Part Context

This part belongs to the Infineon PSoC 3 CY8C32 series, designed for highly integrated embedded applications. The series combines programmable analog blocks with digital logic on a single chip, allowing designers to replace multiple discrete components. The CY8C3244 variant specifically targets applications needing moderate memory capacity and robust analog performance.

Replacement Considerations

Check for direct pin-to-pin replacements within the CY8C3244 family with different speed or memory grades. Verify if newer PSoC 4 or PSoC 5LP devices offer compatible functionality with improved performance, noting that architectural differences may require firmware adaptation.