CY8C3245AXI-166

Overview

The CY8C3245AXI-166 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, 4 kB of SRAM, and 1 kB of EEPROM. The device provides 62 GPIO pins within a TQFP-100 package. Key peripherals include a 12-bit Delta-Sigma ADC, an 8-bit DAC, two voltage comparators, four TCPWM modules, hardware I2C, and Full-Speed USB 2.0. It operates on a supply voltage range of 1.71 V to 5.5 V across multiple domains.

Feature Summary

• Integrates a high-performance single-cycle 8051 CPU with DMA controller for efficient data handling.
• Features programmable analog and digital subsystems including CapSense touch sensing capabilities.
• Supports low-power operation with sleep and deep sleep modes for extended battery life.
• Includes certified Full-Speed USB 2.0 interface for direct connectivity.

Applications

• Consumer electronics requiring capacitive touch interfaces
• Industrial control systems with mixed-signal requirements
• Medical devices needing precise analog signal acquisition
• Battery-powered applications utilizing boost converter functionality

Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm pinout and package configuration. Ensure compatibility with PSoC Creator development tools. Confirm RoHS compliance status through current manufacturer datasheets before finalizing procurement specifications.

Selection Notes

Select this component when a flexible mixed-signal architecture is required alongside standard 8051 compatibility. Consider the 100-pin TQFP package if extensive GPIO routing is necessary. Evaluate the integrated boost converter if input voltages may drop below the core operating threshold.

Part Context

This part belongs to the Infineon PSoC 3 CY8C32 series, designed as a highly configurable system-on-chip. It combines a fast 8051 processor with programmable analog and digital blocks. The series targets applications demanding low power consumption and high integration density in a compact footprint.

Replacement Considerations

Check the CY8C3245AXI-158 for identical electrical characteristics but verify the package difference between TQFP-100 and SSOP-48 formats. Ensure pin compatibility or redesign the PCB layout accordingly before substitution.