CY8C3245LTI-139

Overview

The CY8C3245LTI-139 is an Infineon PSoC 3 microcontroller featuring a single-cycle 8051 CPU 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 48-pin QFN package. The device supports a wide operating voltage range from 1.71 V to 5.5 V and includes a 12-bit Delta-Sigma ADC, 29 I/O pins, and interfaces such as I2C, SPI, UART, and USB.

Feature Summary

• Integrates a high-performance single-cycle 8051 CPU with DMA controller for efficient data handling
• Features programmable analog and digital subsystems allowing flexible peripheral configuration
• Supports low-power operation across multiple modes including sleep and deep sleep
• Includes certified Full-Speed USB 2.0 interface with internal oscillator

Applications

• Consumer electronics requiring mixed-signal processing
• Industrial control systems with sensor interfaces
• Medical devices needing precise analog measurement capabilities
• Battery-powered applications utilizing wide voltage range support

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the component meets RoHS compliance standards for your region. Ensure compatibility with the PSoC Creator development environment before finalizing procurement decisions.

Selection Notes

Select this model when a balance of moderate Flash capacity and extensive analog/digital configurability is needed. The 48-pin QFN package suits space-constrained designs. Consider the 50 MHz performance limit and 1.71 V minimum voltage for power-sensitive applications.

Part Context

This component belongs to the Infineon PSoC 3 family, specifically the CY8C32 series. These devices are designed as programmable system-on-chip solutions, combining an 8051 core with configurable analog and digital blocks on a single die.

Replacement Considerations

Check the CY8C3245AXI-166 for a TQFP-100 package variant with higher I/O count. Verify pinout compatibility if substituting with other CY8C3245 derivatives in existing layouts.

FAQ

What is the maximum operating frequency of the CPU?

The integrated 8051 CPU operates at a maximum frequency of 50 MHz.

Does this device support USB connectivity?

Yes, it includes a certified Full-Speed USB 2.0 peripheral interface with an internal oscillator.

What is the resolution of the onboard ADC?

The device features a 12-bit Delta-Sigma Analog-to-Digital Converter (ADC).