C165L25MHABXQMA1

Overview

The C165L25MHABXQMA1 is a 16-bit microcontroller from the Infineon C16xx series, utilizing the C166 core processor. It features a ROMless program memory architecture with 2K x 8 bytes of RAM. The device operates at a maximum speed of 25MHz using an external oscillator and supports a supply voltage range of 4.5V to 5.5V. It provides 77 I/O lines and includes peripherals such as EBI/EMI, SPI, UART/USART, POR, PWM, and WDT. Packaged in a 100-pin P-MQFP surface-mount format, it functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• ROMless architecture allowing for flexible code storage via external memory interfaces
• Integrated communication capabilities including SPI and UART/USART support
• Built-in peripheral management with Power-On Reset, Pulse Width Modulation, and Watchdog Timer

Applications

• Automotive electronic control units requiring 16-bit processing
• Industrial control systems utilizing external memory expansion
• Embedded applications needing robust serial communication interfaces

Procurement Notes

This component is officially classified as obsolete and is no longer manufactured by Infineon Technologies. Verification of current availability must rely on secondary market distributors or surplus suppliers. Engineers should confirm the authenticity of sourced units through official datasheets and manufacturer cross-reference tools before integration into production designs.

Selection Notes

Designers seeking this specific part must account for its discontinued status when planning long-term production cycles. The primary selection criterion involves identifying compatible replacement components that match the C166 core instruction set and pinout compatibility. Evaluation should focus on modern equivalents that provide similar I/O counts and memory architectures while ensuring supply chain stability for future manufacturing phases.

Part Context

The C165L25MHABXQMA1 belongs to the C16xx family of 16-bit microcontrollers designed primarily for automotive and industrial applications. This series is known for its high-performance C166 core, which combines RISC and CISC characteristics. The specific model variant indicates a 25MHz clock speed and a 100-pin package configuration, serving as a foundational component for legacy embedded systems requiring reliable real-time control capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers include XMC4400F100K512BAXQMA1 from Infineon Technologies. Designers should verify functional equivalence regarding pin compatibility and software migration requirements before adopting alternative components.