Tracii XL

telos Tracii XL – I2C High Speed Interface for USB

Tracii XLTracii XL is the outstanding I2C Adapter featuring the I2C high-speed specification running the I2C bus with up to 2 Mbit/s. Additionally Tracii XL can work as an I2C monitor.

The Tracii XL comes with the listed Basic Features. The other options are sold separately.

This product has a succeeding product model Tracii XL 2.0. Check our I2C Tracer product overview and our general product comparison.

  • High-end I2C Interface.
  • I2C master-mode including multi-master.
  • All I2C transfer and address modes are supported, of course.
  • All features are
    software controlled, no jumpers need to be set.
  • Supports the I2C modes standard and fast-mode. Controllable I2C transfer speed of 183 bit/s to 1000 kbit/s.
  • The additional high-speed mode with up to 2 Mbit/s is a separate option.It works for I2C Master and I2C Tracer operations. The I2C Slave does not feature the high speed mode.
  • SMBus master (quick command, send/receive/write/read byte, write/read word, command process call,block
    write/read/write-read with PEC)
  • 7 and 10 bit addressing
  • Variable termination: 992 .. 10040 Ohm with 57 steps each 158,73 Ohm/no termination.
  • Optional 270 Ohm termination for boosting SCL according to the HS specification.
  • I2C bus voltages from 1.2 V to 5.5 V.
  • Adjustable I2C levels from 10 to 90%.
  • Future-proof product: Firmware is completely downloaded via USB.
  • I2C Slave: I2C RAM Emulation (256 bytes, slave address configurable).
  • All options are software-enabled. So you may upgrade the product by getting a special key permanently enabling the feature.
  • All features as I2C master, digital- and analog-tracer are running simultaneously on a single Tracii XL supposed these options are enabled, of course. I2C slave and master cannot be used simultaneously.
  • Plug and Play interface.
  • No ROM onboard, i.e. firmware can be updated for future requirements.
  • Multiple Tracii XL, Tracii XL 2.0, Connii and Connii MM 2.0 units can be connected to one PC.
  • IRD (I2C Register Description) support
  • I2C Flasher included for free
  • TCP/IP Network support ( I2C via Internet)
  • USB 1.1
  • TWI bus support
  • ESD protected, IEC compatibility according toEN61000-4-2 (ESD) Air – 15 kV, contact – 8 kV
    EN61000-4-4 (EFT) 40 A – 5/50 ns
    EN61000-4-5 (Surge) 12 A, 8/20 µs – level 1 (line-gnd) & level 2 (line-line)
  • No external power supply necessary.
  • Solid stainless steel case of 105 by 130 by 42 mm.

The Option * features on the next Tabs are options which are sold separately:

  • Additional feature: monitoring of I2C bus and SMBus
  • The bus monitoring is non-intrusive,of course.
  • Tracii XL can be used as a master AND a monitor at the same time with a single unit.
  • Time measurement – time stamps – for every byte or event (start / stop condition).
  • The I2C Tracer has a 333 ns resolution (independent of the HS option being enabled).
  • Different to other solutions Tracii XL is able to monitor long, continuous I2C streams without slowing the I2C communication by stretching the bus.
  • Tracii XL continuously sends the trace data to the PC which is processed and stored by I2C Studio in real time. This allows virtually unlimited lossless data capture.
  • Read, write and interpret E-EDID, i.e. DDC data
  • This option is sold separately, you need to order Tracii XL Option: Tracer Mode.


  • Dual A/D converter with sampling rates of 24 kHz to 12 MHz.
  • Tracii XL can be used as a master AND, tracer AND analog monitor at the same time with a single unit.
  • 64 kSamples are stored per SDA / SCL with 8 bit and max 5,5 Volts.
  • Pre-trigger with 0 to 50%, i.e. 32767 samples equal to 2.7 ms at 12 MHz.
  • Smart Battery System (SBS) high-level tracer
  • For analog tracing you need
    Tracii XL Option: Tracer Mode plus
    Tracii XL Option: Analog Mode.


  • Adds the new I2C high-speed HS mode with up to 2 Mbit/s.
  • Controllable I2C transfer speed of 183 bit/s to 2 MBit/s with optional behaviour according to the HS mode specification.
  • This option is sold separately, you need
    Tracii XL Option: High Speed.
  • High Speed works for I2C Master- and the I2C Tracer. A high speed slave is not supported.


Labview Option

  • This option enables Tracii XL to support Labview, please order
    I2C.Labviewmore details >>>


Platform Support

  • Windows Vista (32-bit, 64-bit)
  • Windows 7 (32-bit, 64-bit)
  • Windows 8 (32-bit, 64-bit)
  • Windows 8.1 (32-bit, 64-bit)

Tracii XL is available with different configurations. The above table lists the superset. Features are enabled individually. The product price depends on the requested features. You may add new features to your Tracii XL later on without returning it to telos.

Tracii XL comes with an impressive bunch of free software:

Product Comparison telos Tracii XL versus telos Tracii XL 2.0

This product has a sucessor, telos Tracii XL 2.0. Here is an overview on the differences

Tracii XL 2.0

Tracii XL
Tracii XL Tracii XL 2.0
PC interface USB 1.1 USB 2.0
I2C bus
I2C speedmin 20 bit/s 183 bit/s
I2C speedmax 1 Mbit/s 1 Mbit/s
I2C speed steps > 500 > 500
I2C high-speedmin 1 Mbit/s 600 kbit/s
I2C high-speedmax 3.33 Mbit/s 2 Mbit/s
I2C high-speed steps 15 15
I2C levelmin 1.0 V 1.2 V
I2C levelmax 5.5 V 5.5 V
I2C fast-mode plus
I2C bus termination 429 … 10900 Ohm 992 … 10040 Ohm/Off
… steps >64, software controlled 57 steps, software controlled
Optional I2C Vcc supply 1.0 … 5.5 V [0.1 V steps]
I2C slave 3.6 Mbit
I2C ADC samplingratemin 78.43 kHz 24 kHz
I2C ADC samplingratemax 40 MHz 12 MHz
I2C ADC sample deepth 256 k 64 k
Time stamp resolution 200 ns 333 ns
Misc features
Maximum trace speed 2 Mbit/s 3.3 Mbit/s
Optional analog tracer option
Low voltage support starting 1.2 Volt 1.0 Volt
Optional analog tracing, sampling rate 12 MHz 40 Mhz
Price for tracer solution

395,00 Add to basket

base device plus Tracer

895,00 Add to basket

695,00 Add to basket

base device plus Tracer

895,00 Add to basket


This product comes with a bunch of software licensed for the lifetime of the product. Additionally you get a free service contract. This includes 12 months free support plus all software updates coming
within this period. You may use all this software without time limitations.


  • The Tracii XL
  • Software package I2C Framework including all listed components
  • Application I2C Studio
  • No cables, please order them individually if you need them

Related Products

You may of course use standard cables already available at your lab. The PS/2 cable quality might have impacts on the
signal quality on the I2C bus.


395,00 Add to basket