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Saelig Company has launched the I2CXpress, a versatile USB2.0-connected I2C protocol exerciser/analyser that is ideal for all I2C bus system development and debug.

It operates on standard I2C protocol interfaces in low-speed (10 kbps), standard (100 kbps) and fast (400 kbps) modes.

For advanced systems, Fast (>1 Mbps) mode is also supported.

I2CXpress can be used as an I2C bus master as well as an analyser.

USB-powered I2CXpress is provided with easy-to-use 8PI Control Panel software, with a visual PC interface to interact with embedded IC systems.

8PI Control Panel is supplied with a TCL/tk scripting environment, giving access to a C/C++ DLL as well as the graphical interface.

As an IC master, I2CXpress allows communication with a network of I2C bus devices.

It can address both 7-bit and 10-bit slaves, sending arbitrary length write and read data.

It visually reports I2C bus events, such as missing acknowledge or bus arbitration loss.

As an I2C analyser, I2CXpress oversamples the I2C bus, collects a selected number of raw data samples and isolates and decodes each I2C bus transaction.

The collected data can be saved as decoded data, raw samples, and also a VCD file.

Clock stretching and repeated start functions are supported, as is I2C-based flash memory access and multi-master capabilities.

I2CXpress is compact at only 3.5 x 2 x 0.75in and less than 3oz.

This portable solution is an ideal I2C system development and debug field tool.

Designed for chip-to-chip communication emulation at 3.3V LVTTL/LVCMOS, it can also operate at lower voltages.

A plug-in board PLG-LCS-007 is available for accommodating higher I2C bus voltages (4.0 – 7.0V).

I2CXpress connects to any PC using Microsoft Windows XP or Vista operating systems, and is a hot Plug’n’Play device which can be attached and removed from the host computer without having to power-down or reboot.

I2CXpress is fully bus-powered when the internal power supply mode is selected, and operates without needing any external power supply.

Saelig Company, Inc. is a North American technical distributor for more than 100 manufacturers from all over the world. Founded in 1988 by Alan Lowne, Saelig has earned a growing reputation for finding, sourcing, and supporting unique, easy-to-use, value-priced control and instrumentation products. “Saelig” is an Olde English word which means “happy, prosperous, blessed”. We sell and support a wide range of electronic control and instrumentation equipment and components to customers ranging from Fortune 500 industrial users, military, educational institutions and hospitals to individual end-users. Our sales and distribution center is located in Pittsford, NY USA.

Mission: Saelig’s mission is to find, and successfully promote, unique OEM electronics products sourced from around the world, so that our customers, suppliers, and staff will be “happy, prosperous, and blessed”.

Product range: Oscilloscopes, spectrum analyzers, signal generators, DMMs, AWGs, PSUs, dataloggers, wireless modules, vehicle diagnostics, embedded controllers, I2C, USB, touch-panel PCs, WiFi, Bluetooth, RS2323/422/485 converters, bus analyzers, motors and controllers, etc.

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