Connii MM 2.0 is a small, compact, easy-to-use solution for a PC driven I2C transmitter and receiver. The I2C interface works as an I2C  multimaster device. Thus, it is able to drive buses running multiple I2C bus masters.
Additionally, Connii MM 2.0 is a limited I2C monitor for traffic up to 400kHz.
Connii MM 2.0 can optionally power the I2C bus with a supply voltage of 1.8V, 3.3V or ~5V (50mA max).
The multimaster behaviour, the I2C monitor and the I2C bus supply are the main differences between Connii MM 2.0 and Connii, which is a singlemaster only.
250 Euro
The unit is connected to a PC via a standard USB port. Both I2C modes standard (100 kbit/s) and fast (400 kbit/s) can be selected as speed of operation. The device has two connectors - a standard USB plugin and a PS/2 connector for your I2C bus.
In case you are looking for a more sophisticated I2C USB interface please check Tracii XL 2.0, the sole I2C interface supporting the I2C high speed mode.
The product comes with the most advanced I2C software package on the market, it is featured by the telos I2C Framework and runs under the sophisticated I2C Studio. Labview VIs are included running different I2C modes.
All the software is for free, there are no hidden fees!
- PC connection via USB bus (supports both USB 2.0 high-speed and USB 1.1 full-speed transfers)
- I2C connection via Mini-DIN connector
- I2C buses operating at a range of 1.8 - 5.5 Volt can be attached
- I2C Multimaster: Several I2C master may share the bus
- Simple I2C Monitor, tracing up to 400kHz (see limitations below)
- Clock stretching detection: A slave may stretch the bus
- Optional supply voltage for the I2C bus: 1.8V, 3.3V, ~5V (depends on USB supply voltage), 50mA max.
- 100 kbit/s (Standard Mode) and 400 kbit/s (Fast Mode), the actual rate slighly depends on the I2C bus termination.
- I2C master receiver/transmitter transfers including repeated start
- 7 and 10 bit addressing
- Extensive software package including interfaces for C++, C#, .NET, Java, Labview, Delphi 8, Python and NXP's (formerly Philips Semiconductors) URT/URD.
- Superior Windows application I2C Studio
- Usage of several telos I2C interfaces including Tracii XL / Tracii XL 2.0 at the same computer via different USB ports, thus you can drive multiple I2C buses from a single PC!
- Future-proof product: Firmware completely downloaded via USB
- USB powered, no external power supply necessary.
- Compact size: The 68*41.5*27.5 mm sized plastic housing protects the device from damages.
- TCP/IP Network support (I2C via Internet)
- ESD protected I2C, IEC compatibility according to
EN 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
- 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 SCL, i.e. the SCL line is held 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 2.0 offers a more sophisticated I2C Monitor, which includes time
stamps for every byte and error recognition.
- The actual device (68*41.5*27.5 mm plastic housing)
- Software package I2C Framework including all listed components
- Application I2C Studio
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.
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.
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