We offer the right monitoring solution for every application and budget.
I2C applications are different and so are the requirements for a bus monitoring hard and software. The following overview is intended to hint you to the solution which is most suitable for your needs.
PC interface | USB 2.0 | parallel | USB 1.1 | USB 2.0 |
No external power supply necessary |
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Maximum trace speed | 400kb/s | 400kbit/s | 2 Mbit/s | 2.5 Mbit/s |
Relative time stamps within bytes |
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Absolute time stamps |
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Optional analog tracer option |
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Ultra-low voltage |
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Integrated level shifter |
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Test pin tracing |
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Sophisticated EMC protection |
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No bus stretching |
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Optional analog tracing, sampling rate 4) |
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| 12 MHz | 40 Mhz |
Price for tracer solution | 200 EUR | 935 EUR | 1645 EUR | 1790 EUR |
A more detailed overview of all software and hardware features can be found on our Product Comparison page.
0)Tracii400 is a discontinued product not recommended for new designs
1)The I2C Monitor does only recognize regular I2C transfers, no I2C error conditions etc., thus it is not well suited for finding problems on I2C communication level. The monitor stretches on SCL clock speeds above 120kHz, that is the SCL line is hold low occasionally. That may lead to problems with master or slave devices that do not support SCL stretching (like some I2C single master implementations). Tracii XL / Tracii XL 2.0 offer a more sophisticated I2C Tracer, including time stamps for every byte and error recognition.
2)In conjunction with our level shifter product Levii buses are supported down to 1.8 volts. Our second level shifter product Optii works down to 1.5 volts and separates the I2C buses galvanically.
3)I2C slave and master cannot be used simultaneously.