Infineon Technologies XC2331D20F66LRAAKXUMA1

Overview

XC2331D20F66LRAAKXUMA1 from Infineon Technologies is a 16/32-bit single-chip microcontroller in the XC2000 Econo Line, featuring a C166-compatible CPU core with 80 MHz operation (12.5 ns instruction cycle), 160 KB on-chip Flash memory, 12 KB on-chip SRAM (2 KB DPRAM + 6 KB DSRAM + 4 KB PSRAM), and integrated MultiCAN 2.0B interface with 32 message objects across two CAN nodes. It targets automotive body control modules requiring deterministic real-time response, fault-tolerant communication, and flash-based firmware updates.

For engineers reviewing the XC2331D20F66LRAAKXUMA1 datasheet, XC2331D20F66LRAAKXUMA1 pinout, XC2331D20F66LRAAKXUMA1 application, or XC2331D20F66LRAAKXUMA1 equivalent, key selection criteria include its 80 MHz CPU performance with MPU, 12-bit A/D converter (19 channels, <1 µs conversion), CCU6x PWM units for motor control, and Green LQFP-64 package with -40°C to 125°C operating range.

Technical Context

The XC2331D20F66LRAAKXUMA1 implements a five-stage pipelined C166 CPU core with hardware Memory Protection Unit (MPU), background division (32/16-bit in 21 cycles), and zero-cycle jump execution. Its interrupt system supports 64 nodes across 16 priority levels, with Peripheral Event Controller (PEC) enabling eight-channel, single-cycle DMA transfers using 24-bit address pointers.

On-chip peripherals include a synchronizable 12-bit A/D converter with broken-wire detection and data preprocessing, dual CCU6x units for flexible PWM generation, GPT12E timer unit with five timers, and MultiCAN Rev. 2.0B supporting Full CAN and gateway functionality across two independent CAN nodes.

Key Specifications

Pinout & Package

XC2331D20F66LRAAKXUMA1 is housed in a 64-pin Green LQFP package (PG-LQFP-64-24) with 0.5 mm pitch, optimized for thermal dissipation and PCB layout density in automotive control units.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with XC2331D20F66LRAAKXUMA1, the XC2267M offers higher performance but sacrifices C166 binary compatibility, while the TC1766 adds Ethernet at the expense of CAN message object count and gateway configurability-making the XC2331D optimal for cost-constrained, CAN-centric automotive control where legacy code reuse matters.

Availability

XC2331D20F66LRAAKXUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering subsystems, and engine cooling fan controllers requiring stable component supply, extended temperature operation (-40°C to +125°C), and long-term industrial lifecycle support.

Supply support for XC2331D20F66LRAAKXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power semiconductors, automotive MCUs, security ICs, and RF solutions, headquartered in Munich.

The XC2000 Family - specifically the Econo Line - was designed to deliver C166-class real-time performance and automotive qualification at optimized cost for body electronics, chassis, and powertrain sub-systems.

FAQ

What is the maximum operating frequency and associated instruction cycle time for XC2331D20F66LRAAKXUMA1?

The XC2331D20F66LRAAKXUMA1 operates at a maximum CPU clock frequency of 80 MHz, delivering a 12.5 ns instruction cycle time for single-cycle execution of most instructions. This timing is achieved using the on-chip PLL with an external crystal (1–20 MHz) and is validated across the full -40°C to +125°C temperature range per SAK-grade qualification.

Does XC2331D20F66LRAAKXUMA1 support bootloading over CAN or UART?

Yes, XC2331D20F66LRAAKXUMA1 includes on-chip bootstrap loaders supporting firmware updates via UART (TxD0/RxD0) and CAN (CAN0 or CAN1). The bootloader resides in protected ROM and supports flash programming with checksum verification, enabling field updates without external programming hardware.

How many CAN message objects does the MultiCAN module support, and are they shared between nodes?

The MultiCAN module supports up to 32 message objects per CAN node, with two independent nodes (CAN0 and CAN1). Message objects are not shared between nodes-they are separately allocated and configured, enabling concurrent full-CAN operation on both buses with independent filtering and transmission scheduling.

Is the 12-bit A/D converter capable of synchronized sampling across multiple channels?

Yes, the 12-bit A/D converter supports hardware-synchronized sampling using external triggers (e.g., from GPT12E timers or CCU6x events). Up to 19 channels can be grouped into sequences triggered simultaneously, ensuring phase-aligned acquisition for motor current or multi-sensor measurements without software-induced skew.