Minimum i2c speed

by <a href="http://community.silabs.com/t5/Welcome-and-Announcements/Community-Ranking-System-and-Recognition-Program/m-p/140490#U140490"><font color="#000000"><font size="2">Hero Employee</font></font> </a> Alan_S on ‎05-27-2016 03:24 PM

Question

Why won't my Si114x or Si1132 device respond to Commands?

Answer

The Si1141, Si1142, Si1143, Si1145, Si1146, Si1147, and Si1132 devices have a minimum i2c speed requirement of 90 khz. Writes to the Command register at speeds below this mimimum speed will have unpredictable behavior.

Comments
by <a href="http://community.silabs.com/t5/Welcome-and-Announcements/Community-Ranking-System-and-Recognition-Program/m-p/140490#U140490"><font color="#000000"><font size="2">Legend</font></font> </a> erikm
on ‎05-28-2016 07:34 AM

It should be mentioned in bold letters in the datasheets thatthese devices do not adhere to the I²C specification where minimum speed is ~zero