Minimum i2c speed

by <a href=""><font color="#000000"><font size="2">Hero Employee</font></font> </a> Alan_S on ‎05-27-2016 03:24 PM


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


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.

by <a href=""><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