CY8C3245LTI-129

Overview

The CY8C3245LTI-129 is an Infineon PSoC 3 microcontroller featuring an 8051 CPU core with a maximum clock frequency of 50 MHz. It integrates 32 kB of Flash program memory and 4 kB of SRAM data RAM within a QFN-48 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 a 12-bit Delta-Sigma ADC, four TCPWM modules, hardware I2C, SPI, UART, and USB interfaces.

Feature Summary

• Integrates a single-cycle 8051 CPU with DMA controller for high-performance processing
• Features programmable analog and digital subsystems via Universal Digital Blocks (UDB)
• Supports CapSense touch sensing technology for interactive user interfaces
• Includes certified Full-Speed USB 2.0 peripheral interface

Applications

• Consumer electronics requiring low power consumption
• Industrial control systems with mixed-signal requirements
• Medical devices utilizing precise analog measurement capabilities
• Embedded systems needing flexible I/O routing and connectivity

Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm pinout, temperature grade, and packaging details. Ensure compatibility with PSoC Creator development tools. Confirm RoHS compliance status through current datasheets before procurement.

Selection Notes

Select this component when a highly configurable mixed-signal platform is required. It is suitable for designs needing extensive analog-digital integration, low-power operation across wide voltage ranges, and flexible peripheral mapping via UDBs. Consider package availability and thermal performance for the target application environment.

Part Context

This part belongs to the Infineon PSoC 3 family, specifically the CY8C32 series. These devices are designed as programmable system-on-chip solutions that combine an 8051 processor with reconfigurable analog and digital blocks. The architecture allows for significant design flexibility and reduced bill-of-materials by integrating multiple discrete functions onto a single die.

Replacement Considerations

Consult official Infineon cross-reference guides for verified substitutes. Ensure any replacement maintains compatible pinouts, memory sizes, and peripheral sets. Verify that alternative packages meet mechanical and thermal constraints.