Yes. It is possible to write to the DS2506 1-Wire memory using the OneWireViewer software. Keep in mind that you need an adapter that can provide 12V programming pulse to be able to procced
In OneWireViwer open the "Memory" tab of the EPROM device and enter the desired data.
Please follow the OneWireViewer quickstart guide for more detailed instructions on using the OneWireViewer software.
For additional information on writing to memory with the OneWireViewer, see the OneWireViewer User's Guide and look for the section titled "Memory" or search the document for the phrase "Sample Memory Tab".