2 layers
Mini MCU LINK Integrated
ErichStyger/McuLink-Mini
Version of the NXP MCU-Link Debug CMSIS-DAP Debug Probe.
57 parts32MIT
2 layers46 × 19 mm
MCU Link Standalone
ErichStyger/McuLink-Mini32Version of the NXP MCU-Link Debug CMSIS-DAP Debug Probe.
- Size
- 46 × 19 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 73
- Pads
- 298
- Tracks, vias
- 909, 183
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Feb 2024
- Updated
- 29 Oct 2025
Overview
MCU Link Standalone is an open-source printed circuit board by ErichStyger, from the ErichStyger/McuLink-Mini repository on GitHub, published under the MIT licence. It is a 2-layer board of 46 × 19 mm with 69 parts on 73 nets, routed with 909 tracks and 183 vias.
It is built around the LPC55S69JBD64, XC6227C331PR-G and MI0603J601R-10, with the PMDXB290UNEZ, PESD5V0L5UV and BM03B-SRSS-TB among its other parts. Its parts include 26 capacitors, 11 resistors, 5 diodes, 5 inductors and 3 ICs. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
8LPC55S69JBD64
UncategorisedNXP Semiconductors
XC6227C331PR-G
SOT-89-5-40℃~+85℃@(Ta) 1 100uA 120mV@(300mA) 3.3V 65dB@(1kHz) 6V 700mA Fixed Over Current Protection Positive SOT-89-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MI0603J601R-10
06031 1A 200mΩ 600Ω@100MHz 0603 Ferrite Beads ROHSLairdFerrite Beads
PMDXB290UNEZ
DFN1010B-6MOSFETsNexperia
PESD5V0L5UV
SOT-563-6100nA 10pF 14V 40W@8/20us 5V 6V IEC 61000-4-2、IEC 61000-4-5 TVS SOT-563-6 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
BM03B-SRSS-TB
Header SR 1.0 SMT top entry, 1mm pitchJSTUncategorised
KMR221GLFS
SMD,4.6x2.8mm-40℃~+85℃ 1.9mm 2.8mm 2N 32V 4.6mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD,4.6x2.8mm Tactile Switches ROHSC&KTactile Switches
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
README.mdMCU-Link with KiCAD
This repository hosts different versions of the original NXP MCU-Link CMSIS-DAP debug probe as open source KiCAD versions. Both as standalone probe or integrated into your design.
Many thanks to Dario Scheuber and his work to make this project possible!
Background
This is the work of Dario Scheuber who created this debug probe as student at the Lucerne University of Applied Sciences and Arts at IET. The project was done under the guidance of Prof. Erich Styger.
See blog article on https://mcuoneclipse.com/2024/02/06/versatile-oshw-mini-mcu-link-debug-probe-external-on-board-or-embedded/ for additional details.
Features
This is an open hardware version of the NXP MCU-Link CMSIS-DAP debug probe, with following features and differences to the original MCU-Link:
- Open hardware design with KiCad
- Firmware compatibility with MCU-Link (LinkServer, CMSIS-DAP, ARM DAPLink)
- Dual-Layer design for lower costs
- USB-C connector instead of Micro-USB
- USB-C connector usable to debug the LPC55S69
- 30% smaller than the original MCU-Link
- Firmware/boot push button instead of jumper
- Micro connector for UART connection instead of pin header
- Supports only 3.3V targets (no level shifters)
- Standalone version as external debug probe
- On-Board version: Solder external debug probe on your custom board (castellated pins)
- Embedded version: copy-paste into your custom board KiCad design
- BOM with assembly costs: ~$12/piece for 100 units
Folders
- enclosure: 3D printed enclosure
- hardware: KiCad and hardware related files
Links
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C4, C5, C7, C8, C9, C11, C17, C18, C25 |
| 5 | 10n | Capacitor_SMD:C_0402_1005Metric | C6, C12, C13, C14, C16 |
| 4 | MountingHole_Pad | mculink:MountingHole_2.2mm_M2_ISO7380_Pad_TopBottom_with_holes | H1, H2, H3, H4 |
| 3 | 22u | Capacitor_SMD:C_0402_1005Metric | C15, C22, C26 |
| 3 | 47p | Capacitor_SMD:C_0402_1005Metric | C19, C20, C23 |
| 3 | MI0603J601R-10 | Inductor_SMD:L_0603_1608Metric | L2, L3, L4 |
| 3 | PMDXB290UNE | mculink:SOT1216 | Q1, Q2, Q3 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R8, R9 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R5 |
| 2 | 10u | Capacitor_SMD:C_0402_1005Metric | C1, C10 |
| 2 | 2k | Resistor_SMD:R_0402_1005Metric | R6, R10 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 8p | Capacitor_SMD:C_0402_1005Metric | C21, C24 |
| 2 | PESD5V0L5UV | Package_TO_SOT_SMD:SOT-666 | D2, D5 |
| 1 | 10 | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 16.000MHz | mculink:CX3225GA16000D0PTVCC | Y1 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 3.3V | mculink:castellated pin | H9 |
| 1 | 4u7 | Inductor_SMD:L_0603_1608Metric | L5 |
| 1 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | BM03B-SRSS-TB | mculink:JST_BM03B-SRSS-TB_LF__SN_ | J2 |
| 1 | Conn_02x05_Odd_Even | mculink:SWD_Pin_Header_Straight_2x05_Pitch1.27mm_SMD | J3 |
| 1 | KMR221GLFS | mculink:SW_C_K_KMR2 | SW1 |
| 1 | LED_RED | LED_SMD:LED_0402_1005Metric | D3 |
| 1 | LPC55S69JBD64 | mculink:LQFP-64-1EP_10x10mm_P0.5mm_EP5x5mm | U2 |
| 1 | Logo HSLU | mculink:Hochschule_Luzern_New | L1 |
| 1 | PMEG3005AESFYL | Diode_SMD:Nexperia_DSN0603-2_0.6x0.3mm_P0.4mm | D4 |
| 1 | PRTR5V0U2X | mculink:SOT143B | D1 |
| 1 | RXD | mculink:castellated pin | H5 |
| 1 | Reset | mculink:castellated pin | H10 |
| 1 | STMPS2141STR | mculink:SOT95P280X145-5N | U3 |
| 1 | SWCLK | mculink:castellated pin | H6 |
| 1 | SWD disable | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | SWDIO | mculink:castellated pin | H8 |
| 1 | TXD | mculink:castellated pin | H7 |
| 1 | USB4110-GF-A_REVB | mculink:USB_C_Receptacle_GCT_USB4110-GF-A | J1 |
| 1 | XC6227C331PR-G | mculink:SOT-89-5 | U1 |
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Questions
How big is the MCU Link Standalone PCB?
It measures 46 × 19 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MCU Link Standalone use?
69 parts, built around the LPC55S69JBD64, XC6227C331PR-G, MI0603J601R-10 and PMDXB290UNEZ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the MCU Link Standalone KiCad files?
From the ErichStyger/McuLink-Mini repository on GitHub, at the commit this page was made from: the board is hardware/KiCad/mini-MCU-LINK-Standalone/MCU-Link-Standalone.kicad_pcb and its schematic hardware/KiCad/mini-MCU-LINK-Integrated/mini MCU-LINK Debug and UART interface.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MCU Link Standalone design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).