USB-I2C/SPI/GPIO Interface Adapter - U2C-12
Reference Manual

Electrical Characteristics



Absolute Maximum Ratings
Parameter MinMax
Storage Temperature -65oC+150oC
Ambient Temperature Under Bias -40oC+85oC
DC Input Voltage to Any Pin -0.5V+5.8V



Operating Conditions
Parameter MinMax
Ta (Ambient Temperature Under Bias) 0oC+70oC



I2C Interface Characteristics:
SymbolParameterConditionMinMax
VIHInput High Voltage 2.0V5.25V
VILInput Low Voltage -0.5V0.8V
VOHiOutput High VoltageInternal VCC3.3V5V
VOHeOutput High VoltageExternal VCC2.0V5V
VOLOutput Low Voltage  0.4V
FreqSPI Bus Frequencyconfigurable2kHz400kHz



SPI Interface Characteristics:
SymbolParameterConditionMinMax
VIHInput High Voltage 2.0V5.25V
VILInput Low Voltage -0.5V0.8V
VOHOutput High VoltageIOUT=1.6mA2.4V 
VOLOutput Low VoltageIOUT=-1.6mA 0.4V
FreqSPI Bus Frequencyconfigurable2kHz200kHz



GPIO Characteristics:
SymbolParameterConditionMinMax
VIHInput High Voltage 2.0V5.25V
VILInput Low Voltage -0.5V0.8V
VOHOutput High VoltageIOUT=1.6mA2.4V 
VOLOutput Low VoltageIOUT=-1.6mA 0.4V

            Copyright Diolan 2006