---
product_id: 6929188
title: "ARM-JTAG-20-10 ARM Micro JTAG adapter"
brand: "x-on"
price: "$0.54"
currency: USD
in_stock: true
reviews_count: 7
url: https://www.desertcart.ec/products/6929188-arm-jtag-20-10-arm-micro-jtag-adapter
store_origin: EC
region: Ecuador
---

# ARM-JTAG-20-10 ARM Micro JTAG adapter

**Brand:** x-on
**Price:** $0.54
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** ARM-JTAG-20-10 ARM Micro JTAG adapter by x-on
- **How much does it cost?** $0.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/6929188-arm-jtag-20-10-arm-micro-jtag-adapter)

## Best For

- x-on enthusiasts

## Why This Product

- Trusted x-on brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Buy ARM-JTAG-20-10 ARM Micro JTAG adapter: Science Kits & Toys - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great way to reduce JTAG connector footprint in your custom board! - I now design all my ARM boards using the 1.27mm 10-pin JTAG mini connector. It saves a lot of space in the board's footprint. Then I use this Olimex adapter to down-convert from the 2.54mm 20-pin JTAG connector of my Atmel SAM-ICE to the 10-pin connector in my board (the 10-pin shrouded connector I used on my board is DigiKey's 1175-1629-ND).
Review: This item is as advertised as of August, 2014 ... - This item is as advertised as of August, 2014. We use this with a Segger J-LINK and allows us to connect to our ARM development module.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009UEO9ZY |
| Brand | X-ON |
| Customer Reviews | 3.1 3.1 out of 5 stars (16) |
| Date First Available | February 19, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.32 ounces |
| Item model number | ARM-JTAG-20-10 |
| Manufacturer | Olimex |
| Manufacturer Part Number | ARM-JTAG-20-10 |
| Product Dimensions | 0.98 x 0.98 x 0.39 inches |

## Images

![ARM-JTAG-20-10 ARM Micro JTAG adapter - Image 1](https://m.media-amazon.com/images/I/413WagnMfxL.jpg)

## Questions & Answers

**Q: Can this be used for modding**
A: What kind of modding ? , I have the product and ..it's amazing because I have some dev boards from Freescale and also it's compatible with arduino due .

**Q: Can I use this to go from a 10 pin programmer to a 20 pin debug port?**
A: very interesting question. I use it wiath a cheap j-link clone to debug arduino Due cortex M3. The Due has  has the 10 pin metric connectorl. Loking at the schematic of the  ARM-JTAG-20-10 (http://modules.flightsimulators.eu/index.php?page=jtag-debugger) I do not see any reason why not. Just verify that the connector is not reversed. You may have to build an adaptor for the adaptor.

**Q: What is the pinout from the 20 to 10 pin?  I want to know where pin 1 on the 20 pin is connected to the 10 pins.  10 pins are dropped, but which ones?**
A: (pin_1 and pin_2) of 20-pin-connector go to (pin_1) of 10-pin connector, which is VCC. The schematic PDF is here: https://www.olimex.com/Products/ARM/JTAG/ARM-JTAG-20-10/resources/ARM-JTAG-20-10-schematic.pdf

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great way to reduce JTAG connector footprint in your custom board!
*by E***O on December 1, 2014*

I now design all my ARM boards using the 1.27mm 10-pin JTAG mini connector. It saves a lot of space in the board's footprint. Then I use this Olimex adapter to down-convert from the 2.54mm 20-pin JTAG connector of my Atmel SAM-ICE to the 10-pin connector in my board (the 10-pin shrouded connector I used on my board is DigiKey's 1175-1629-ND).

### ⭐⭐⭐⭐⭐ This item is as advertised as of August, 2014 ...
*by N***A on August 13, 2014*

This item is as advertised as of August, 2014. We use this with a Segger J-LINK and allows us to connect to our ARM development module.

### ⭐⭐⭐ Three Stars
*by D***N on May 17, 2015*

Works

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- ARM-JTAG-20-10 ARM Micro JTAG adapter
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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-06-27*