CY8C3245AXI-158

Overview

The CY8C3245AXI-158 is an 8-bit microcontroller from the Infineon PSoC 3 family, featuring a single-cycle 8051 CPU core operating at frequencies up to 50 MHz. It integrates 32 kB of Flash program memory, 4 kB of SRAM, and 1 kB of EEPROM within a 100-pin TQFP package. The device supports a wide supply voltage range of 1.71 V to 5.5 V and includes a 12-bit Delta-Sigma ADC, an 8-bit DAC, two voltage comparators, and CapSense touch sensing capabilities. Digital peripherals include four TCPWM modules, hardware I2C, and USB 2.0 Full-Speed interfaces.

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 CapSense technology for capacitive touch sensing applications
• Includes integrated boost converter for operation with low-voltage power sources

Applications

• Consumer electronics requiring capacitive touch interfaces
• Industrial control systems needing mixed-signal processing
• Medical devices utilizing precise analog measurement capabilities
• Battery-powered applications benefiting from ultra-low power modes

Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm pinout and package compatibility. Ensure that the selected variant matches the required I/O count and peripheral availability for your design. Cross-reference the datasheet revision date to confirm support for intended development tools like PSoC Creator.

Selection Notes

Select this component when a highly configurable mixed-signal platform is required alongside an 8051 architecture. Consider the CY8C3245AXI-158 if the design demands extensive GPIO flexibility, integrated touch sensing, and robust analog performance in a 100-pin form factor. Evaluate power consumption requirements against the available sleep and deep sleep modes.

Part Context

This part belongs to the Infineon PSoC 3 CY8C32 series, which combines an 8051 CPU with programmable analog and digital blocks. The series is designed for applications requiring system-level integration, reducing board space and component count. The AXI-158 designation specifically indicates the 100-TQFP package variant within this scalable family.

Replacement Considerations

Consult the official Infineon product selector for direct pin-to-pin or functional equivalents within the CY8C32 series. Verify memory sizes and I/O counts when considering alternative packages such as QFN or CSP variants.