CY8C3245LTI-139T

Overview

The CY8C3245LTI-139T is an 8-bit microcontroller from the Infineon PSoC 3 family, featuring a single-cycle 8051 CPU core. It integrates 32 kB of Flash program memory and 4 kB of SRAM within a 48-pin QFN package. The device supports a maximum clock frequency of 50 MHz and operates across a supply voltage range of 1.71 V to 5.5 V. Key peripherals include a 12-bit Delta-Sigma ADC, four TCPWM modules, hardware I2C, and Full-Speed USB 2.0 interfaces.

Feature Summary

• Integrates a high-performance single-cycle 8051 CPU with DMA controller for efficient data handling
• Features configurable analog subsystems including a precise Delta-Sigma ADC and CapSense support
• Provides flexible digital logic via Universal Digital Blocks (UDB) for custom peripheral creation
• Supports multiple low-power operating modes including sleep and deep sleep states

Applications

• Battery-powered consumer electronics requiring ultra-low power consumption
• Industrial control systems utilizing programmable analog and digital interfaces
• Medical devices needing high-precision signal acquisition and processing
• Embedded systems integrating capacitive touch sensing capabilities

Procurement Notes

Verify the specific ordering suffix '139T' against official Infineon documentation to confirm tape-and-reel packaging and moisture sensitivity level requirements. Ensure compatibility with PSoC Creator development tools and check for RoHS compliance status in the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when a balance of moderate memory capacity and extensive analog configurability is required. The 48-pin QFN package suits space-constrained designs. Consider the 50 MHz operational speed and integrated USB interface if communication capabilities are necessary without external transceivers.

Part Context

This part belongs to the PSoC 3 series, which combines a standard 8051 microcontroller with highly configurable analog and digital blocks on a single chip. The architecture allows designers to implement complex mixed-signal applications by routing signals between programmable peripherals and GPIO pins, reducing system component count.

Replacement Considerations

Consult the official PSoC 3 product selector for cross-reference options. Verify pinout compatibility and memory size equivalence when evaluating alternative packages or variants within the CY8C32xx series.