Infineon Technologies XMC4300F100F256AAXQMA1

Overview

XMC4300F100F256AAXQMA1 from Infineon Technologies is an ARM® Cortex®-M4 32-bit microcontroller with 256 KB Flash, 128 KB SRAM, integrated Ethernet MAC (10/100 Mbps), EtherCAT Slave interface, and dual CAN nodes. It features two 12-bit VADCs (8 channels each), dual 12-bit DACs, CCU8/CCU4 timers for motor control, and operates across -40°C to 85°C in industrial automation systems requiring real-time fieldbus synchronization and deterministic I/O.

For engineers reviewing the XMC4300F100F256AAXQMA1 datasheet, XMC4300F100F256AAXQMA1 pinout, XMC4300F100F256AAXQMA1 application, or XMC4300F100F256AAXQMA1 equivalent, key selection criteria include RMII Ethernet timing compliance, EtherCAT FMMU/Sync Manager count, USB OTG Full-Speed PHY integration, and CCU8-based PWM resolution for servo drive control loops.

Technical Context

The XMC4300F100F256AAXQMA1 implements a tightly coupled ARM Cortex-M4 core with hardware floating-point unit (FPU) and Memory Protection Unit (MPU), enabling deterministic execution of motion control algorithms and real-time OS tasks. Its bus matrix supports concurrent access to Flash, SRAM, and peripherals without arbitration stalls.

It integrates dual MII ports for EtherCAT slave operation with 8 Fieldbus Memory Management Units (FMMUs), 8 Sync Managers, and 64-bit distributed clocks - meeting IEC 61158 Type 12 requirements. The RMII interface supports 50 MHz reference clock input and 10/100 Mbps auto-negotiation with integrated PHY termination.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish; JEDEC-standard footprint compatible with automated reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XMC4300F100F256AAXQMA1, the XMC4400 variant extends thermal capability for harsh environments while the XMC4500 adds memory headroom and dual Ethernet - making the XMC4300 optimal for cost-sensitive, thermally constrained industrial motion control where 256 KB Flash and single RMII suffice.

Availability

XMC4300F100F256AAXQMA1 is available at Aetrix Electronics and suitable for industrial servo drives, PLC communication modules, smart inverters, and HMI controllers requiring stable component supply and long-term industrial lifecycle support.

Supply support for XMC4300F100F256AAXQMA1 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 is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The XMC4000 family targets industrial connectivity and motion control, integrating real-time peripherals like EtherCAT, MultiCAN, and high-resolution timers to replace discrete FPGA+MCU architectures in factory automation equipment.

FAQ

Does XMC4300F100F256AAXQMA1 support JTAG debugging?

Yes, it supports full ARM JTAG debug interface with 6 hardware breakpoints, CoreSight trace, and SWD compatibility. The JTAG TAP controller is accessible via pins TCK, TMS, TDI, TDO, and TRST, enabling real-time code inspection, flash programming, and hardware register visibility during development and field diagnostics.

What is the maximum operating frequency of the internal PLL?

The internal PLL supports up to 144 MHz system clock output from a 4–20 MHz crystal or external clock source. It includes programmable pre-divider, multiplier, and post-divider stages, with phase noise <1 ps RMS jitter at 144 MHz - meeting timing closure requirements for CCU8 PWM and Ethernet MAC interfaces.

Can the USB interface operate in host mode?

No - the USB peripheral is configured exclusively as a Full-Speed OTG device with integrated PHY; it does not support host mode or high-speed operation. External USB host functionality requires companion ICs such as the USB334x series or dedicated USB host controllers.

Is the SDMMC interface compatible with UHS-I cards?

No - the SDMMC controller supports only standard speed (up to 25 MHz) and high-speed (up to 50 MHz) modes per SD 3.0 specification. It lacks UHS-I signaling (1.8 V I/O, DDR mode, SDR50/104) and therefore cannot interface with UHS-I or microSDXC cards requiring those modes.