I2C Products

telos Connii MM 2.0 – I2C Fast Mode Interface for USB, I2C Multimaster

  • Small, easy-to-use USB-based Multimaster
  • Simple I2C Monitor, up to 300kHz
  • I2C bitrates: 100 kbit/s and ~ 300 kbit/s
  • I2C buses operating at a range of 1.8 V – 5.5 V

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telos Tracii XL 2.0 – I2C High Speed Interface for USB

  • Robust industrial high-end I2C Interface
  • I2C modes: Multimaster, Tracer and Oscilloscope
  • I2C transfer speed of 20 bit/s to 3.33 Mbit/s
  • USB 2.0 High-Speed

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telos Tracii XL – I2C High Speed Interface for USB

  • Robust industrial high-end I2C Interface
  • I2C modes: Multimaster, Tracer and Oscilloscope
  • I2C transfer speed of 183 bit/s to 2 Mbit/s
  • I2C bus voltages from 1.2 V to 5.5 V

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telos I2C Negative Tester – I2C Master and Slave Test Device

  • Pattern generator for legal/illegal I2C messages
  • Configurable I2C timing on bit level
  • Stress test I2C devices

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I2C Accessories, Levelshifter

telos Levii – I2C Level Shifter

  • Full bi-directional level shifting including stretching and Multimaster arbitration
  • Four channels: SDA, SCL plus two additional bi-directional pins
  • I2C range of 1,8 V up to 5,5 V

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telos Optii – I2C Galvanic Isolation/Level Shifter

  • Galvanic isolation for the I2C bus
  • Integrated level shifter for voltages between 1.5 V and 5.5 V
  • Support for uni-directional test pins which are also isolated

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I2C Accessoires

  • USB, Parallel Port and Full Mini-DIN (PS/2) Cable
  • Stocko Connector Set
  • Parallel Port Card

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telos I2C Product Comparison

Overview of telos I2C Appliances

This I2C product comparison chart lists the features of our I2C interfaces to help you find the right product for your needs. In case you want to focus on our I2C monitors please have look on this comparison sheet.

Connii MM 2.0

Tracii XL 2.0
telos Connii MM 2.0 telos Tracii XL 2.0
USB interface USB 2.0 High Speed USB 2.0 High Speed
USB powered
Housing plastic solid stainless steel
Digital input testpins 1 2
Digital output testpins 1 2
I2C bus
I2C speedmin 100 kbit/s 20 bit/s
I2C speedmax ~300 kbit/s 1 Mbit/s
I2C speed steps 2 > 500
I2C high-speedmin 1 Mbit/s
I2C high-speedmax 3.33 Mbit/s
I2C high-speed steps 15
I2C levelmin 1.8 V 1.0 V
I2C levelmax 5.5 V 5.5 V
Adjustable I2C levels for logical one and zero
I2C fast-mode
I2C fast-mode plus
I2C high-speed
I2C bus termination 10.0 kOhm 429 … 10900 Ohm
… steps >64, software controlled
Optional I2C Vcc supply 1.8, 3.3, ~5 V 1.0 … 5.5 V [0.1 V steps]
I2C single-master
I2C multi-master
I2C slave 3.6 Mbit
I2C tracer/monitor
I2C ADC samplingratemin 78.43 kHz
I2C ADC samplingratemax 40 MHz
I2C ADC sample deepth 256 k
Time stamp resolution 200 ns
Complex combined mode messages
Trigger external scope on I2C bus conditions
Misc features
I2C via Internet
I2C Register Description (IRD)
I2C Studio
I2C C++ API master/tracer master/tracer/adc
I2C Java API master master
I2C .NET API master/tracer master/tracer/adc
I2C Labview API master/tracer master/tracer/adc
I2C Flasher

218,00 Add to basket

935,00 Add to basket

plus options
Connii MM 2.0 Tracii XL 2.0
  1. In conjunction with our level shifter telos Optii down to 1.5 volt and separating the I2C buses galvanically.
  2. The I2C Monitor telos Connii MM 2.0 does only recognize regular I2C transfers, no I2C error conditions etc. Thus it is not well-suited for finding problems on I2C communication level. telos Connii MM 2.0 may occasionally stretch SCL, i.e. the SCL line is held low for a short period of time. That may lead to problems with master or slave devices that do not support SCL stretching (like some I2C single master implementations).

    telos Tracii XL 2.0 offers a more sophisticated I2C Monitor, which includes time stamps for every byte and error recognition.

I2C Software

telos is a leading vendor of I2C bus interfaces and I2C bus monitors. We introduced our first I2C scanner in 1997 and have been working on new products and tools continuously. Meanwhile there are several I2C bus adapter vendors on the market. What makes our products different? Well, there are several aspects but let’s focus on

I2C Software Excellence

For our I2C Tools we provide the software I2C Studio and the library I2C Framework for free. Both are outstanding, modern and powerful tools. Have a try and download them for evaluation.

I2C Product Support

We are supporting all our products directly. You will get substantial feedback by one of our engineers within 24 hours on business days.


telos has been founded in 1988. 30 years of superior engineering expertise makes our product outstanding focusing on technical features, usability and, of course on quality. telos is ISO 9000 certified since 1997.

telos I2C Software

telos I2C Studio – The Integrated I2C Development Environment

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telos I2C Framework – APIs for I2C communication

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telos I2C Flasher

  • Supports a wide range of I2C voltage levels from 1,2 V up to 5,5 V
  • Supports standard, fast and high-speed mode up to 2 Mbit/s
  • Reads binary, ASCII Hex and Intel Hex file format
  • Supports flashing over TCP/IP networks (I2C via Internet)

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