CY8C3245AXI-158T

Overview

The CY8C3245AXI-158T 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 100-pin TQFP package. The device supports a maximum clock frequency of 50 MHz and operates across a voltage range of 1.71 V to 5.5 V. Key peripherals include a 12-bit Delta-Sigma ADC, an 8-bit DAC, four TCPWM modules, and certified Full-Speed USB 2.0 interface.

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
• Includes certified Full-Speed USB 2.0 interface with internal oscillator support
• Supports ultra-low power modes including sleep and deep sleep with RAM retention

Applications

• Embedded control systems requiring mixed-signal processing
• USB-enabled consumer electronics and peripherals
• Industrial monitoring and sensor interfaces
• Medical devices needing precise analog signal acquisition

Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm that the AXI designation corresponds to the 100-pin TQFP package variant. Ensure compatibility with PSoC Creator development tools for firmware implementation. Check for moisture sensitivity level requirements during storage and assembly processes.

Selection Notes

Select this model when a robust 8051 architecture combined with extensive analog programmability is required. The 100-pin TQFP package provides ample I/O options for complex system designs. Consider the integrated USB capability if host or device communication is necessary without external transceivers. Evaluate power consumption profiles against application requirements given the wide operating voltage range.

Part Context

This component belongs to the Infineon PSoC 3 CY8C32 series, designed for highly integrated embedded applications. It combines a standard 8051 core with Cypress's proprietary Programmable System-on-Chip technology. This architecture allows designers to customize analog and digital blocks on-chip, reducing bill-of-materials count and board space compared to discrete solutions.

Replacement Considerations

Cross-reference with other CY8C3245 variants differing only in package type (e.g., QFN) or temperature grade. Verify pinout compatibility before substituting with non-tape-and-reel versions like the tray-packaged CY8C3245AXI-158.