C165L25FHABXUMA1

Overview

The C165L25FHABXUMA1 is a 16-bit microcontroller from the Infineon C166 family, featuring a ROMless program memory architecture. It operates at a maximum clock frequency of 25 MHz with an external oscillator type. The device provides 77 I/O lines and includes 2K x 8 bytes of RAM. It supports interfaces including EBI/EMI, SPI, and UART/USART, along with peripherals such as POR, PWM, and WDT. Powered by 4.5V to 5.5V, it is housed in a 100-LQFP package and functions within a temperature range of 0°C to 70°C.

Feature Summary

• ROMless architecture allowing for flexible external code storage solutions
• Integrated support for external bus interfaces (EBI/EMI) for expanded memory mapping
• Built-in peripheral set including PWM and watchdog timer for system control

Applications

• Automotive engine control units requiring 16-bit processing
• Industrial motor control systems utilizing PWM capabilities
• General-purpose embedded applications needing external memory expansion via EBI

Procurement Notes

This component is officially discontinued and no longer manufactured by Infineon Technologies. Verification of availability should focus on surplus or secondary market sources rather than direct factory orders. Buyers must confirm the authenticity of stock through authorized distributors or verified resellers. Ensure that any replacement components are validated for pin compatibility and functional equivalence before integration into existing designs.

Selection Notes

Designers should consider the ROMless nature of this MCU when selecting external memory solutions, as it lacks internal program storage. The 25 MHz speed and 16-bit core suit moderate-performance applications but may require migration to newer architectures for higher throughput needs. Evaluate the 100-pin package constraints against board space requirements and verify that the 0°C to 70°C operating range meets environmental specifications for the target deployment scenario.

Part Context

Part of the C16xx series, this microcontroller utilizes the C166 core architecture known for high performance in automotive and industrial sectors. It represents an earlier generation of 16-bit MCUs designed for robust real-time control tasks. The specific suffix indicates tape-and-reel packaging for automated assembly processes.

Replacement Considerations

Public confirmed substitute part number: XMC4400F100K512BAXQMA1.