C165L25MHAFXUMA1

Overview

The C165L25MHAFXUMA1 is a 16-bit microcontroller from the Infineon SAxC165 series, built on the C166 core architecture. It features a maximum clock frequency of 25 MHz and operates within a supply voltage range of 4.5V to 5.5V. The device provides 77 I/O lines and includes 2 kB of data RAM. Program memory is specified as ROM in official listings, though some aliases suggest ROMless variants; this specific part number is associated with the MQFP-100 package. It supports standard peripherals including five timers/counters and interfaces such as SPI and UART/USART.

Feature Summary

• Built on the C166 core architecture for 16-bit processing
• Provides 77 general-purpose input/output lines
• Includes integrated timer and counter peripherals
• Supports serial communication via SPI and UART

Applications

• Industrial control systems
• Automotive electronics applications
• General-purpose embedded control tasks

Procurement Notes

Verify exact memory configuration (ROM vs. ROMless) against the manufacturer datasheet, as aliases indicate variations. Confirm package type matches design requirements. Check component status as listings indicate potential end-of-life or discontinuation. Ensure compatibility with existing firmware and hardware interfaces before procurement.

Selection Notes

Select this component for applications requiring a robust 16-bit C166 core with moderate I/O count. Consider the 25 MHz speed limit and 2 kB RAM capacity for code size and processing needs. Evaluate the MQFP-100 package for board space constraints. Compare against newer AURIX families if higher performance or safety standards are required.

Part Context

This MCU belongs to the SAxC165 family, an evolution of the C166 architecture. It targets cost-sensitive industrial and automotive markets. The C165 series typically offers a balance of processing power and peripheral integration suitable for legacy and modern embedded designs requiring reliable 16-bit execution.

Replacement Considerations

Public sources list XMC4400F100K512BAXQMA1 as a similar replacement. Verify pinout and software compatibility when migrating. No other direct substitutes are confirmed in the provided documentation.