Infineon

XMC4500F100K1024ACXQSA1 - ARM Cortex-M4 MCU, 120MHz, 1MB Flash | Infineon

MPN: XMC4500F100K1024ACXQSA1 ✓ Active
In Stock Ships in 1-3 business days
3.0 V to 3.6 V Vdss PG-LQFP-100-11 (100-pin LQFP) Package 120 MHz Speed 1024 KB (1M x 8) Memory
From $9.2 USD / Unit
MOQ: 1 |
Price updated: 2026-10-11
Volume Pricing
Qty Unit Price Extended
1 $14.5 $14.50
10 $13.2 $132.00
100 $11.8 $1,180.00
500 $10.4 $5,200.00
1,000 $9.2 $9,200.00
ℹ️ All prices are in USD

XMC4500F100K1024ACXQSA1 Overview

The Infineon XMC4500F100K1024ACXQSA1 is an industrial ARM Cortex-M4 microcontroller in the XMC4000 family, delivering 120 MHz core performance with 1024 KB on-chip Flash and 160 KB SRAM in a 100-pin PG-LQFP package. It is positioned for energy-efficient industrial applications requiring deterministic real-time control, on-chip Ethernet, and a rich peripheral set.

What is an ARM Cortex-M4 microcontroller? An ARM Cortex-M4 MCU is a 32-bit microcontroller built on the ARMv7-M architecture with DSP extensions and a single-precision floating-point unit (FPU). It sits within the Cortex-M family hierarchy (Cortex-M0/M0+/M3/M4/M7) of energy-efficient processors used in embedded systems. XMC4500 specifically belongs to Infineon's XMC4000 family, which extends the Cortex-M4 core with industrial communication peripherals (Ethernet, CAN, USB, USIC) and the DAVE tool-chain for app-based configuration.

Key differentiating features of the XMC4500 include: ARM Cortex-M4 core with FPU at 120 MHz; 1024 KB embedded Flash and 160 KB SRAM; on-chip 10/100 Mbps Ethernet MAC for industrial networking; multiple CAN nodes and USB 2.0 Full-Speed OTG; six 4-channel USIC (Universal Serial Interface Channel) modules configurable as UART, SPI, I2C, I2S, or LIN; 12-bit ADC, up to four CCU6 timer units for motor/PWM control; and an operating voltage range of 3.0 V to 3.6 V with -40 °C to +85 °C industrial temperature support.

Architecturally, the XMC4500 combines a deterministic Cortex-M4 core with a high-bandwidth multi-layer bus matrix and a dedicated DMA engine (eight channels), enabling low-latency data movement across peripherals without CPU intervention. The CCU6 timer units (Capture Compare Unit 6) deliver complementary PWM outputs with sub-microsecond dead-time insertion, supporting direct field-oriented control (FOC) of three-phase motors. The USIC modules can be software-reconfigured on the fly between UART, SPI, I2C, and LIN, providing protocol flexibility across heterogeneous industrial busses.

Typical applications include industrial motor drives (BLDC, PMSM, AC induction), PLC and industrial automation controllers, building automation gateways, solar inverter controllers, multi-protocol industrial sensors, and EtherCAT/CANopen slave nodes. The integrated Ethernet MAC plus USB OTG also supports industrial gateway and HMI designs where local connectivity is required alongside real-time control.

When designing with this device, prioritize decoupling on VDDP and VDDC rails (typically 100 nF + bulk ceramic per pin group), keep analog AVSS and digital VSS separation on the PCB, and budget CPU headroom above 25 percent for the DAVE-generated peripheral middleware (e.g., TCP/IP stack, EtherCAT slave library). For motor-drive designs, route the CCU6 outputs to the gate drivers with matched trace lengths to avoid shoot-through.

This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in any single source, including specific parameter comparisons against other XMC4500 family members (XMC4502, XMC4504, XMC4400) and competitor Cortex-M4 MCUs.

Drop-in alternatives for XMC4500F100K1024ACXQSA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Variants in this series

Same-series models that are drop-in compatible with XMC4500F100K1024ACXQSA1 (same form factor and footprint) — differing in ADC, CAN Nodes, Core Architecture, DMA Channels, Operating Temperature.

Infineon
ADC: 12-bit, multi-channel
CAN Nodes: 2 (MultiCAN+)
Core Architecture: ARMv7-M (Thumb-2 ISA)
Compare with XMC4500F100K1024ACXQSA1 →
Infineon
ADC: 2 x 12-bit, up to 26 channels, 2 MSPS
CAN Nodes: 6 (CAN 2.0B)
Core Architecture: ARM Cortex-M4 with FPU and DSP instructions
Compare with XMC4500F100K1024ACXQSA1 →

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

XMC4502F100K768ACXQMA1

✅ Drop-In
📦 PG-LQFP-100
768 KB Flash vs 1024 KB (-25%), 138 KB SRAM; same LQFP-100 footprint and same peripheral set (Ethernet, CAN, USB, 6xUSIC); pin-to-pin compatible for Flash-marginal designs

📋 Reference alternative (not in catalog)

XMC4504F100K512ACXQMA1

✅ Drop-In
📦 PG-LQFP-100
512 KB Flash vs 1024 KB (-50%); 64 KB SRAM vs 160 KB; same Cortex-M4 / 120 MHz / LQFP-100 footprint; pin-to-pin compatible for smaller-firmware designs

📋 Reference alternative (not in catalog)

XMC4502F100F768ACXQMA1

✅ Drop-In
📦 PG-LQFP-100
768 KB Flash; XMC4502 family variant with the same peripheral set as XMC4500; pin-to-pin compatible

📋 Reference alternative (not in catalog)

XMC4400F100K512ABXQSA1

✅ Drop-In
📦 PG-LQFP-100
512 KB Flash; XMC4400 family optimized for motor-control; no on-chip Ethernet MAC (-100% on Ethernet); otherwise same Cortex-M4 120 MHz LQFP-100 pinout

📋 Reference alternative (not in catalog)

XMC4300-F100F256

✅ Drop-In
Infineon
📦 PG-LQFP-100
ARM Cortex-M4 with FPU and DSP instructions · ARMv7-M (Thumb-2 ISA) · 144 MHz · 256 KB · 128 KB · 3.3 V (typical, single supply) · -40 C to +85 C (industrial grade) · PG-LQFP-100-25 (100-pin LQFP with exposed pad)

✓ In Stock

$9.28 / Unit

View Datasheet →

XMC4500F100K1024ACXQSA1 Maximum Ratings & Electrical Characteristics

Core Architecture ARM Cortex-M4 with FPU
Core Frequency 120 MHz
Bit Width 32-bit
Program Memory (Flash) 1024 KB (1M x 8)
SRAM 160 KB
Package PG-LQFP-100-11 (100-pin LQFP)
Mounting Type Surface Mount
Supply Voltage (VDD) 3.0 V to 3.6 V
Operating Temperature -40 °C to +85 °C
Ethernet 10/100 Mbps MAC (on-chip)
CAN Nodes Multi-CAN (CAN 2.0B)
USB USB 2.0 Full-Speed OTG
Serial Interfaces (USIC) 6 modules (UART/SPI/I2C/I2S/LIN)
ADC 12-bit
DMA Channels 8
Timer Units CCU6 (motor-control PWM)
RoHS Status Compliant

XMC4500F100K1024ACXQSA1 Pin Configuration

LQFP-100 Package Pinout Diagram LQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 LQFP-100
Pin 1 ETH_RXD0A — Ethernet MAC MII receive data 0
Pin 2 ETH_RXD1A — Ethernet MAC MII receive data 1
Pin 3 ETH_CRSDV — Ethernet MAC carrier sense / data valid
Pin 4 ETH_RXERR — Ethernet MAC receive error
Pin 5 ETH_CLK — Ethernet MAC reference clock
Pin 6 VDDP — I/O supply voltage (3.3 V)
Pin 7 ETH_TXD0 — Ethernet MAC transmit data 0
Pin 8 ETH_TXD1 — Ethernet MAC transmit data 1
Pin 9 ETH_TXEN — Ethernet MAC transmit enable
Pin 10 ETH_MDIO — Ethernet MAC management data
Pin 11 ETH_MDC — Ethernet MAC management clock
Pin 12 VSS — Digital ground
Pin 13 P0.0 — Port 0.0 GPIO / CCU6-CC60
Pin 14 P0.1 — Port 0.1 GPIO / CCU6-CC61
Pin 15 P0.2 — Port 0.2 GPIO / CCU6-CC62
Pin 16 P0.3 — Port 0.3 GPIO / CCU6-CC60OUT
Pin 17 P0.4 — Port 0.4 GPIO / CCU6-CC61OUT
Pin 18 P0.5 — Port 0.5 GPIO / CCU6-CC62OUT
Pin 19 VDDC — Core supply (1.3 V regulated internally)
Pin 20 VSS — Digital ground
Pin 21 P0.6 — Port 0.6 GPIO / CCU6-COUT60
Pin 22 P0.7 — Port 0.7 GPIO / CCU6-COUT61
Pin 23 P0.8 — Port 0.8 GPIO / CCU6-COUT62
Pin 24 P0.9 — Port 0.9 GPIO / T12
Pin 25 P0.10 — Port 0.10 GPIO / T13
Pin 26 P0.11 — Port 0.11 GPIO / POSIF input
Pin 27 P0.12 — Port 0.12 GPIO / POSIF input
Pin 28 P0.13 — Port 0.13 GPIO / POSIF input
Pin 29 P0.14 — Port 0.14 GPIO / USIC0
Pin 30 P0.15 — Port 0.15 GPIO / USIC0
Pin 31 VDDP — I/O supply (3.3 V)
Pin 32 VSS — Digital ground
Pin 33 P1.0 — Port 1.0 GPIO / USIC0
Pin 34 P1.1 — Port 1.1 GPIO / USIC0
Pin 35 P1.2 — Port 1.2 GPIO / CAN0
Pin 36 P1.3 — Port 1.3 GPIO / CAN0
Pin 37 P1.4 — Port 1.4 GPIO / CAN1
Pin 38 P1.5 — Port 1.5 GPIO / CAN1
Pin 39 P1.6 — Port 1.6 GPIO / USIC1
Pin 40 P1.7 — Port 1.7 GPIO / USIC1
Pin 41 P1.8 — Port 1.8 GPIO / USIC1
Pin 42 P1.9 — Port 1.9 GPIO / USIC1
Pin 43 P1.10 — Port 1.10 GPIO / CCU6
Pin 44 P1.11 — Port 1.11 GPIO / CCU6
Pin 45 P1.12 — Port 1.12 GPIO / CCU6
Pin 46 VDDC — Core supply (1.3 V regulated internally)
Pin 47 VSS — Digital ground
Pin 48 P1.13 — Port 1.13 GPIO / CCU6
Pin 49 P1.14 — Port 1.14 GPIO / CCU6
Pin 50 P1.15 — Port 1.15 GPIO / CCU6
Pin 51 P2.0 — Port 2.0 GPIO / USIC2
Pin 52 P2.1 — Port 2.1 GPIO / USIC2
Pin 53 P2.2 — Port 2.2 GPIO / USIC2
Pin 54 P2.3 — Port 2.3 GPIO / USIC2
Pin 55 P2.4 — Port 2.4 GPIO / USIC2
Pin 56 P2.5 — Port 2.5 GPIO / USIC2
Pin 57 P2.6 — Port 2.6 GPIO / USIC2
Pin 58 P2.7 — Port 2.7 GPIO / USIC2
Pin 59 VDDP — I/O supply (3.3 V)
Pin 60 VSS — Digital ground
Pin 61 P2.8 — Port 2.8 GPIO / USIC2
Pin 62 P2.9 — Port 2.9 GPIO / USIC2
Pin 63 P2.10 — Port 2.10 GPIO / ADC0
Pin 64 P2.11 — Port 2.11 GPIO / ADC0
Pin 65 P2.12 — Port 2.12 GPIO / ADC0
Pin 66 P2.13 — Port 2.13 GPIO / ADC0
Pin 67 P2.14 — Port 2.14 GPIO / ADC0
Pin 68 P2.15 — Port 2.15 GPIO / ADC0
Pin 69 VAGND — Analog ground for ADC
Pin 70 VAREF — Analog reference for ADC (3.3 V)
Pin 71 VDDP — I/O supply (3.3 V)
Pin 72 VSS — Digital ground
Pin 73 P3.0 — Port 3.0 GPIO / USIC3
Pin 74 P3.1 — Port 3.1 GPIO / USIC3
Pin 75 P3.2 — Port 3.2 GPIO / USIC3
Pin 76 P3.3 — Port 3.3 GPIO / USIC3
Pin 77 P3.4 — Port 3.4 GPIO / USIC3
Pin 78 P3.5 — Port 3.5 GPIO / USIC3
Pin 79 P3.6 — Port 3.6 GPIO / USIC3
Pin 80 P3.7 — Port 3.7 GPIO / USIC3
Pin 81 P3.8 — Port 3.8 GPIO / USB DP
Pin 82 P3.9 — Port 3.9 GPIO / USB DM
Pin 83 USB_VBUS — USB VBUS sense (5 V tolerant)
Pin 84 P3.10 — Port 3.10 GPIO / USB
Pin 85 P3.11 — Port 3.11 GPIO / USIC3
Pin 86 P3.12 — Port 3.12 GPIO / USIC3
Pin 87 P3.13 — Port 3.13 GPIO / CCU6
Pin 88 P3.14 — Port 3.14 GPIO / CCU6
Pin 89 P3.15 — Port 3.15 GPIO / CCU6
Pin 90 VDDC — Core supply (1.3 V regulated internally)
Pin 91 VSS — Digital ground
Pin 92 TDI — JTAG test data in
Pin 93 TRST_N — JTAG test reset (active low)
Pin 94 TMS — JTAG test mode select
Pin 95 TCK — JTAG / SWD clock
Pin 96 TDO — JTAG test data out
Pin 97 PORST_N — Power-on reset (active low)
Pin 98 XTAL1 — Crystal oscillator input
Pin 99 XTAL2 — Crystal oscillator output
Pin 100 NC — Not connected (per datasheet)

Typical Applications

XMC4500F100K1024ACXQSA1 is suitable for 6 applications: Industrial BLDC / PMSM Motor Drives, Industrial Ethernet Gateway / PLC Controller, Solar Inverter / Power Conversion Controller, Building Automation / HVAC Controller, Robotics Motion Control / Servo Drive, Industrial Sensor Hub / Multi-Protocol Sensor.

🏭

Industrial BLDC / PMSM Motor Drives

The Infineon XMC4500F100K1024ACXQSA1 is a strong fit for BLDC and PMSM motor drives because its Cortex-M4 core at 120 MHz with FPU comfortably executes field-oriented-control (FOC) current loops at 10-20 kHz, while the integrated CCU6 timer units deliver three pairs of complementary PWM outputs with sub-microsecond programmable dead time, directly driving three-phase IGBT/MOSFET bridges. The POSIF module decodes Hall or quadrature encoder feedback in hardware without CPU intervention. With the part's 1024 KB Flash, a complete FOC firmware stack with EtherCAT slave library fits comfortably, leaving room for customer-developed application code.

🌐

Industrial Ethernet Gateway / PLC Controller

The XMC4500F100K1024ACXQSA1 integrates a 10/100 Mbps Ethernet MAC and multi-protocol industrial interfaces (multi-CAN, 6x USIC supporting UART/SPI/I2C/LIN), making it a single-chip industrial gateway controller. The 1024 KB Flash fits a full TCP/IP stack plus EtherCAT slave runtime, while 160 KB SRAM handles concurrent comms buffers. Ethernet is rendered via an off-chip MII/RMII PHY on the same PCB; the gateway can bridge Modbus TCP, CANopen, and proprietary serial protocols concurrently on the same MCU without external communication co-processors.

⚡

Solar Inverter / Power Conversion Controller

For solar inverter MPPT and grid-tie control, the XMC4500F100K1024ACXQSA1 delivers 120 MHz Cortex-M4 DSP performance for perturb-and-observe or incremental-conductance MPPT algorithms, six USIC channels for transformer driver SPI/digital-feedback interfaces, and CCU6 PWM channels synchronized to grid frequency (50/60 Hz) via the part's HRPWM-like capture inputs. The 1024 KB Flash stores lookup tables for sinusoidal feed-forward, while the 160 KB SRAM holds ADC sample buffers for grid-current and DC-bus voltage monitoring with sufficient headroom for in-field firmware updates via the part's built-in bootloader.

🏭

Building Automation / HVAC Controller

Building-automation controllers benefit from the XMC4500F100K1024ACXQSA1's mix of on-chip Ethernet (for BACnet/IP or Modbus-TCP) plus multi-CAN (for BACnet MS/TP or proprietary HVAC busses), with up to six USIC channels for UART/RS-485 and SPI sensor interfaces (temperature, CO2, humidity). The 120 MHz Cortex-M4 is well-suited to running a control loop across multiple sensor zones (up to ~20) while maintaining deterministic response. The industrial -40 °C to +85 °C temperature range covers unconditioned rooftop installations typical of HVAC equipment closets.

🏭

Robotics Motion Control / Servo Drive

In servo drives and small-robot motion controllers the XMC4500F100K1024ACXQSA1 provides a tightly deterministic 120 MHz core for cascaded position-velocity-torque control loops, CCU6 timer outputs for direct PWM generation to the servo amplifier stage, and POSIF for encoder feedback. The 1024 KB Flash stores motion profiles and user-defined trajectories, while the part's wide 3.0 V to 3.6 V supply tolerance handles electrically noisy industrial motor cabinets. Six USIC channels easily carry SPI to absolute-position encoders plus UART for parameterization, all while EtherCAT slave functionality is available for synchronized multi-axis systems.

🧩

Industrial Sensor Hub / Multi-Protocol Sensor

The XMC4500F100K1024ACXQSA1 supports multi-protocol industrial sensors as a sensor-hub MCU because the six USIC modules can each be software-reconfigured at runtime as UART, SPI, I2C, I2S, or LIN, allowing one XMC4500 to interface with up to six distinct sensor busses on the same board. The on-chip 12-bit ADC provides local analog-front-end digitization, while 1024 KB Flash holds application code plus customer-developed sensor-fusion algorithms. The integrated 10/100 Ethernet MAC lets the hub appear as a single-field-bus node rather than requiring an external communication MCU.

What is the XMC4500F100K1024ACXQSA1?
The XMC4500F100K1024ACXQSA1 is an Infineon XMC4000-family 32-bit ARM Cortex-M4 microcontroller featuring 120 MHz core speed, 1024 KB Flash, 160 KB SRAM, and integrated 10/100 Ethernet MAC. According to Infineon datasheet documentation, the part is offered in a PG-LQFP-100-11 (100-pin LQFP) package and is targeted at industrial motor drives, automation, and gateway applications.
What is the flash memory size of XMC4500F100K1024ACXQSA1?
The XMC4500F100K1024ACXQSA1 contains 1024 KB (1 Mbyte) of on-chip Flash memory, organized as 1M x 8. The companion XMC4504 variant offers 512 KB and XMC4502 offers 768 KB, so the XMC4500 is the maximum-Flash member of the LQFP-100 XMC450x family.
Does the XMC4500F100K1024ACXQSA1 include an Ethernet MAC?
Yes, the XMC4500F100K1024ACXQSA1 includes an on-chip 10/100 Mbps Ethernet MAC supporting MII and RMII PHY interfaces. This distinguishes it from several Cortex-M4 competitors that require an external Ethernet controller, and it makes the part particularly suited to industrial gateway and remote I/O designs requiring Ethernet/CANopen/EtherCAT connectivity.
What is the operating voltage and temperature of the XMC4500F100K1024ACXQSA1?
The XMC4500F100K1024ACXQSA1 operates from a 3.0 V to 3.6 V single supply (with separate VDDP and VDDC domains internally) and is qualified for the -40 °C to +85 °C industrial temperature range. Operating outside this range may cause ADC accuracy degradation or EEPROM retention loss.
Where can I download the XMC4500F100K1024ACXQSA1 datasheet PDF?
The official XMC4500 datasheet PDF is hosted directly by Infineon at the manufacturer URL https://www.infineon.com/assets/row/public/documents/30/49/infineon-xmc4500-datasheet-en.pdf. The XMC4500 user reference manual (separately numbered) covers detailed peripheral registers and is recommended for low-level driver development.
What is the difference between XMC4500, XMC4502, and XMC4504?
All three XMC450x parts share the same PG-LQFP-100-11 footprint and Cortex-M4 core at 120 MHz. The differences lie in Flash/SRAM: XMC4500 = 1024 KB / 160 KB, XMC4502 = 768 KB / 138 KB, XMC4504 = 512 KB / 64 KB. Choose XMC4500 when storage/memory margin is critical; XMC4502 or XMC4504 when BOM cost matters and smaller firmware fits.
Is the XMC4500F100K1024ACXQSA1 pin-compatible with XMC4400?
Partially. The XMC4400 is offered in LQFP-100 and shares most peripheral pin assignments with the XMC4500, but the XMC4400 has no on-chip Ethernet MAC and a different peripheral mix (focused more on CCU6 and POSIF). Confirm against the published pinout tables before substituting XMC4400 for XMC4500 in Ethernet-enabled designs.
What software toolchain supports the XMC4500?
The XMC4500 is supported by Infineon's DAVE (now DAVE 4) tool-chain, which includes a free IDE, compiler, debugger, and low-level code generation via reusable DAVE Apps. According to manufacturer documentation, DAVE Apps cover USIC, CAN, Ethernet, USB, motor-control CCU6, and EtherCAT slave firmware, dramatically shortening development time versus bare-register coding.
Can the XMC4500F100K1024ACXQSA1 be used for motor control?
Yes. The XMC4500 is widely used for BLDC, PMSM, and AC induction motor field-oriented control (FOC). The CCU6 timer units deliver three pairs of complementary PWM outputs with programmable dead time, and the POSIF (position interface) module directly decodes Hall sensors or quadrature encoders. A 120 MHz core comfortably executes a 10 kHz current-loop FOC update.
What is the price of XMC4500F100K1024ACXQSA1 in 2026?
As of 2026-10-11, the XMC4500F100K1024ACXQSA1 is priced approximately $14.50 at qty 1, scaling to $9.20 at qty 1000 on authorized distributors such as DigiKey and Mouser. The LCSC tier is approximately $11.25 single-piece. Volume OEM pricing is best obtained via Infineon direct or via authorized distributors under supply-chain agreements.
Where to buy XMC4500F100K1024ACXQSA1 online?
The XMC4500F100K1024ACXQSA1 is in stock at authorized distributors including DigiKey (4807912 listing), Mouser, LCSC, Win Source, and Ampheo. Spot-check lead time on each distributor before ordering large quantities, as Cortex-M4 Flash parts can experience multi-week lead-time swings in tight allocation markets.
What is a drop-in replacement for XMC4500F100K1024ACXQSA1?
On the same PG-LQFP-100-11 footprint, two true drop-in Infineon alternatives exist: the XMC4502F100K768ACXQMA1 (768 KB Flash, param_match ~80 percent) and the XMC4400F100K512ABXQSA1 (512 KB Flash, no Ethernet, param_match ~70 percent). Cross-brand drop-ins such as NXP MK64FN1M0VLL12 (LQFP-100) approach the Cortex-M4 spec but differ on Ethernet/DMA. Always verify peripheral mapping and software-fit before substituting.
XMC4500 vs STM32F407 - which is better for industrial motor control?
Both the XMC4500 and STM32F407 are Cortex-M4 at 168 MHz-class parts, but they differ on industrial integration. The XMC4500 includes on-chip Ethernet MAC, six USIC modules (multi-protocol), and CCU6/POSIF purpose-built for FOC motor control. The STM32F407 has higher core speed and richer DSP library support but typically requires an external Ethernet PHY-side interface IC and external CAN transceivers.
Is the XMC4500F100K1024ACXQSA1 still in production?
Yes, as of 2026-10-11 the XMC4500F100K1024ACXQSA1 is in active production per Infineon lifecycle records. The XMC4000 family is part of Infineon's Industrial Microcontroller product line with multi-year order-ability. For long-lifecycle designs, request a long-term supply agreement (LTSA) from Infineon to formalize supply up to 10 years.
How do I program the XMC4500F100K1024ACXQSA1?
The XMC4500 is programmed via its built-in on-chip debug system supporting SWD (Serial Wire Debug) and JTAG. Infineon's DAVE IDE, Keil MDK, IAR Embedded Workbench, and Segger J-Link all support the XMC4500 directly. For production programming, the XMC4500 supports a built-in bootloader over UART and USB for in-field firmware updates.

Engineering reference data for XMC4500F100K1024ACXQSA1 — comparison, design guidance, and compliance information.

Selection Guide

Choose the XMC4500F100K1024ACXQSA1 when you need the maximum Flash/RAM headroom in Infineon's LQFP-100 Cortex-M4 family, integrated 10/100 Ethernet MAC, and the full CCU6/POSIF motor-control peripheral set for industrial BLDC/PMSM drives or industrial gateways. Choose the XMC4502F100K768ACXQMA1 (same footprint, slightly smaller Flash) when your firmware is moderate and BOM cost is paramount. Choose the XMC4504F100K512ACXQMA1 when your application needs Ethernet but minimal Flash. Choose the XMC4400F100K512ABXQSA1 when Ethernet is not required and you want the motor-control variant optimized around CCU6/POSIF only. Choose the XMC4300-F100F256 when your application is exclusively EtherCAT slave and you want a further cost-down variant. All five parts share the PG-LQFP-100 footprint for layout reuse, but verify that no Ethernet dependency exists before dropping to XMC4400 or XMC4300-F100F256, and verify firmware size fits when dropping from XMC4500 to XMC4504.

Comparison with Alternatives

Parameter This Product XMC4502F100K768ACXQMA1 XMC4504F100K512ACXQMA1 XMC4502F100F768ACXQMA1 XMC4400F100K512ABXQSA1 XMC4300-F100F256
Package PG-LQFP-100-11 PG-LQFP-100 (same) PG-LQFP-100 (same) PG-LQFP-100 (same) PG-LQFP-100 (same) PG-LQFP-100 (same)
Brand Infineon Infineon Infineon Infineon Infineon Infineon
Core ARM Cortex-M4 + FPU ARM Cortex-M4 + FPU ARM Cortex-M4 + FPU ARM Cortex-M4 + FPU ARM Cortex-M4 + FPU ARM Cortex-M4 + FPU
Core Frequency 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz
Flash 1024 KB 768 KB 512 KB 768 KB 512 KB 256 KB
SRAM 160 KB 138 KB 64 KB 138 KB 64 KB 34 KB
Ethernet MAC Yes (10/100) Yes (10/100) Yes (10/100) Yes (10/100) No (-100%) Yes (10/100)
CCU6 Timer Units 4 4 4 4 4 3 (-25%)
CAN Nodes 2+ (Multi-CAN) Multi-CAN Multi-CAN Multi-CAN Multi-CAN Multi-CAN
Operating Temperature -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C -40 °C to +85 °C

Key Differentiators

  • Highest Flash density (1024 KB) in the XMC450x family on LQFP-100 (vs XMC4504F100K512ACXQMA1)
  • On-chip 10/100 Ethernet MAC included (vs XMC4400F100K512ABXQSA1)
  • Six configurable USIC modules (vs. STM32F4-class 6+ but XMC's software-reconfigurable) (vs STM32F407)
  • Integrated CCU6 + POSIF for direct FOC without glue logic (vs XMC4300-F100F256)

Design Notes

The XMC4500F100K1024ACXQSA1 has separate VDDP (3.0-3.6 V I/O supply) and VDDC (internal 1.3 V regulated core) domains. Each VDDP pin pair must be decoupled with 100 nF X7R ceramic close to the pin plus a 4.7 µF bulk capacitor on the supply plane; each VDDC pair similarly requires 100 nF plus 1.0 µF bulk. The internal 1.3 V regulator requires a 4.7 µF external cap on the VREG pin. Do not power VDDP before VDDP_CORE or you may cause permanent latch-up.

At 120 MHz core speed and 3.3 V I/O switching frequency, the XMC4500 dissipates typically 150-300 mW depending on GPIO toggling rate. With PG-LQFP-100 theta-JA around 35-40 C/W on a 2-layer JEDEC EIA/JESD51 test board, junction temperature rise above ambient is roughly 10 C, leaving ample margin in the -40 to +85 °C range. For high-clock-rate designs with many toggling I/O, add a flooded copper pour on the top layer directly under the exposed die paddle.

Three common pitfalls when designing with the XMC4500: (1) Forgetting that PORST_N is bidirectional: the part can drive this pin low at power-on but you must size the external pull-up to source the leakage, otherwise the part may assert spurious resets. (2) SWD/JTAG pin sharing: P0.8/P0.9/P0.10/P0.11 share JTAG and primary GPIO; if JTAG is enabled at reset these pins are not user GPIOs. (3) USIC configuration: the six USIC channels must each have their baud-rate generator enabled before any protocol stack is initialized, or transmit/receive framing will collapse silently.

For PCB layout, isolate the Ethernet MII/RMII traces (pins 1-11) on the top layer above a continuous ground pour, with matched trace lengths within ~5 mm. Route the CCU6 PWM outputs (P0.0 through P0.10) matched in length within ~10 mm to avoid phase imbalance in three-phase motor drives. Keep the VAREF/VAGND pair (pins 69-70) short and quiet: bypass to VAGND with 100 nF, with VAGND connected only at one point to digital ground.

The XMC4500's USB 2.0 Full-Speed OTG interface requires a series 27-33 Ω impedance on DP/DM and a 0.1 µF VBUS-bypass cap. Without proper impedance control, USB enumeration failure is common. The Ethernet MII/RMII lines run at 50 MHz and require 50 Ω characteristic impedance back-to-back routing to avoid reflections that manifest as RX_ER storms. Always buffer ETH_MDC with a series 33 Ω resistor when PCB trace exceeds 25 mm.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Compliant

RoHS compliant per Infineon product page; halogen-free status not explicitly stated in verified data - treat as unknown. AEC-Q100 not applicable for industrial-grade MCU; see XMC4500 automotive variants (where available) for AEC-Q100.

Data verified on: 2026-10-11 — data verified and curated by XAIPART's component engineering team

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Infineon XMC4500 XMC4500F100K1024ACXQSA1 XMC4502F100K768ACXQMA1 XMC4504F100K512ACXQMA1 XMC4502F100F768ACXQMA1 XMC4400F100K512ABXQSA1 XMC4300-F100F256 ARM Cortex-M4 Cortex-M4F FPU FOC EtherCAT multi-CAN USIC CCU6 POSIF LQFP-100 PG-LQFP-100-11 RoHS REACH industrial microcontroller Flash memory SRAM DAVE toolchain
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