CY8C3245AXA-154

Overview

The CY8C3245AXA-154 is an 8-bit microcontroller based on the Infineon PSOC™ 3 architecture, utilizing an 8051 core. It features 32 kB of Flash program memory and 4 kB of SRAM data storage. The device supports a maximum clock frequency of 50 MHz and operates within a voltage range of 1.71 V to 5.5 V. It includes one 12-bit Delta-Sigma ADC, one 8-bit DAC, and 62 general-purpose I/O pins. Connectivity options include I2C, UART, and Full-Speed USB interfaces. The component is housed in a 100-TQFP package and functions across a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates a programmable analog and digital system-on-chip architecture for flexible peripheral configuration.
• Supports capacitive sensing applications through dedicated CAPSENSE™ technology integration.
• Provides direct LCD driving capabilities for display interface requirements.
• Includes non-volatile EEPROM storage for retaining runtime parameters and calibration data.

Applications

• Industrial control systems requiring robust 8-bit processing
• Consumer electronics with capacitive touch interface needs
• Medical devices utilizing precision analog signal acquisition
• General-purpose embedded controllers with USB connectivity

Procurement Notes

Verify the specific suffix designation against official Infineon documentation to confirm pinout compatibility and thermal characteristics. Ensure that the selected variant matches the required package type and operating temperature range for the intended application environment. Cross-reference the datasheet revision history to confirm current manufacturing status and recommended usage guidelines before finalizing procurement decisions.

Selection Notes

Select this component when an 8051-compatible core is required alongside significant analog flexibility. The inclusion of a Delta-Sigma ADC and DAC allows for precise signal conditioning without external components. Consider the 62 available GPIOs and USB interface for complex peripheral management. Evaluate the 100-TQFP package constraints against board space limitations and thermal dissipation requirements during the design phase.

Part Context

This part belongs to the PSOC™ 3 family, designed for applications needing mixed-signal processing. It combines a standard 8051 CPU with configurable analog blocks and digital interconnects. The series emphasizes low power consumption and high integration levels, reducing bill-of-materials complexity by replacing multiple discrete components with a single programmable chip solution.

Replacement Considerations

Consult official Infineon substitution guides for verified alternatives within the PSOC™ 3 or PSOC™ 4 families. Direct pin-to-pin replacements may require firmware adaptation due to architectural differences between 8051 and ARM-based cores. Verify equivalent memory sizes and peripheral counts before implementing any substitute part number.