Infineon Technologies XMC4400F100K256ABXQSA1

Overview

XMC4400F100K256ABXQSA1 from Infineon Technologies is an ARM® Cortex®-M4 32-bit microcontroller with 256 KB Flash, 80 MHz CPU clock, and integrated Ethernet MAC, USB OTG, and 12-bit ADC. It features 100-pin LQFP package, hardware floating-point unit (FPU), and real-time control peripherals including HRPWM and DSD. Used in industrial motor drives for closed-loop position/speed control with deterministic timing.

For engineers reviewing the XMC4400F100K256ABXQSA1 datasheet, XMC4400F100K256ABXQSA1 pinout, XMC4400F100K256ABXQSA1 application, or XMC4400F100K256ABXQSA1 equivalent, key selection criteria include Ethernet PHY interface support, 12-bit ADC sampling rate (2.5 MSPS), HRPWM resolution (150 ps), USB OTG transceiver integration, and industrial temperature range (–40°C to +125°C).

Technical Context

The XMC4400F100K256ABXQSA1 implements a dual-domain power architecture with separate supply domains for analog (VDDA), digital core (VDD), and I/O (VDDIO). Its clock system includes a PLL supporting up to 144 MHz output, internal 10 MHz RC oscillator, and external crystal support (1–20 MHz) for RTC and main system clock.

Peripheral subsystems are organized into dedicated hardware accelerators: the DSD (Delta-Sigma Demodulator) supports direct sigma-delta sensor interfacing; the CCU6 (Capture Compare Unit 6) enables precise motor phase timing; and the ETH module provides MII/RMII interfaces with IEEE 802.3-compliant MAC layer operation without external PHY required for RMII mode.

Key Specifications

Pinout & Package

Package: PG-LQFP-100-25 (14 × 14 mm, 0.5 mm pitch, exposed thermal pad).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XMC4400F100K256ABXQSA1, the XMC4500 offers higher memory headroom but sacrifices USB integration, while the STM32H743 delivers higher CPU throughput at the expense of analog subsystem depth and industrial Ethernet readiness - making the XMC4400 optimal for compact, mixed-signal industrial controllers.

Availability

XMC4400F100K256ABXQSA1 is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers (PLCs), and energy metering gateways requiring stable component supply, long-term lifecycle assurance, and industrial-grade reliability.

Supply support for XMC4400F100K256ABXQSA1 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 management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The XMC4000 family was designed specifically for real-time industrial automation, integrating precision analog, deterministic PWM, and industrial networking peripherals onto a single die to replace multi-chip control subsystems.

FAQ

What is the maximum achievable PWM frequency using the HRPWM module?

The HRPWM module supports a minimum pulse width of 150 ps, enabling theoretical PWM frequencies exceeding 6.6 MHz. In practice, with 100 MHz system clock and 1:1 prescaler, users achieve 3.3 MHz carrier frequency with 10-bit resolution. Layout-dependent parasitic capacitance limits actual rise/fall times to ~5 ns, constraining usable bandwidth to ≤5 MHz in production designs.

Does the XMC4400F100K256ABXQSA1 include a hardware cryptographic accelerator?

No, this variant does not integrate a dedicated crypto engine. It supports AES-128 via software libraries optimized for Cortex-M4F, achieving ~1.2 MB/s throughput. For hardware-accelerated cryptography, Infineon's XMC4700 or AURIX™ TC3xx families provide dedicated security co-processors compliant with EVITA Full and Common Criteria EAL4+.

Can the internal 10 MHz RC oscillator be used as the main system clock source?

Yes, the internal 10 MHz RC oscillator can serve as the main clock source via the FLL (Frequency Locked Loop) to generate stable 80–144 MHz system clocks. However, its ±2% initial tolerance and ±0.5% drift over temperature make it unsuitable for USB or Ethernet timing; external crystal (e.g., 12 MHz) is required for those interfaces.

Is the Ethernet MAC capable of operating without an external PHY chip?

Yes, in RMII mode, the Ethernet MAC operates with only five signals (REF_CLK, CRS_DV, RXD[1:0], TXD[1:0]) and requires an external 50 MHz clock source. No external PHY is needed for basic link establishment, though full IEEE 802.3 compliance (e.g., auto-negotiation, MDI/MDIX) requires an external PHY such as the LAN8720A.