CY8C3245AXI-158

Overview

The CY8C3245AXI-158 is an Infineon PSoC 3 mixed-signal programmable system-on-chip featuring a single-cycle 8051 CPU core. It integrates 32 kB of Flash program memory, 4 kB of SRAM, and 1 kByte of EEPROM within a 100-pin TQFP package. The device supports a maximum clock frequency of 50 MHz and operates on a supply voltage range of 1.71 V to 5.5 V. Key peripherals include one 12-bit Delta-Sigma ADC, one 8-bit DAC, four TCPWM modules, one I2C interface, and Full-Speed USB 2.0 capabilities.

Feature Summary

• Integrates a high-performance single-cycle 8051 CPU with DMA controller for efficient data handling
• Features highly configurable analog and digital subsystems including Delta-Sigma ADC and CapSense support
• Provides flexible I/O routing allowing any peripheral signal to be mapped to any pin
• Supports multiple low-power operating modes including sleep and deep sleep states

Applications

• Consumer electronics requiring mixed-signal processing
• Industrial control systems with sensor interfaces
• Medical devices utilizing precise analog measurement
• Communication equipment needing USB connectivity

Procurement Notes

Verify the specific ordering suffix AXI-158 against official Infineon documentation to confirm the exact package type (TQFP-100) and temperature grade. 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 design requires a combination of 8051 processing, USB connectivity, and programmable analog resources in a 100-pin form factor. Consider the 32 kB Flash and 4 kB RAM limits relative to application firmware size. Evaluate the 50 MHz performance requirement against power consumption constraints in active modes.

Part Context

This part belongs to the Infineon PSoC 3 CY8C32 series, which are mixed-signal programmable system-on-chips. The series combines an 8051 microcontroller with configurable analog and digital blocks. The CY8C3245 variant specifically offers 32 kB of Flash memory and Full-Speed USB integration, distinguishing it from variants with different memory sizes or peripheral sets.

Replacement Considerations

Consult official Infineon cross-reference guides for verified substitutes. Potential alternatives within the PSoC 3 family may include CY8C3246AXI-138T for increased memory capacity. Verify pinout and electrical parameter compatibility before substitution.

FAQ

What is the maximum operating frequency of the CPU?

The internal PLL can generate a clock frequency up to 50 MHz.

Does this device support capacitive touch sensing?

Yes, the analog subsystem supports CapSense functionality for touch sensor applications.

How many general-purpose I/O pins are available?

The device provides up to 62 general-purpose I/O (GPIO) pins.