Symbol Parameter Conditions Min Typ Max Unit VILInput low level voltage TTL Ports -0.5 0.8 V VIHStandard IO input high level voltage 2 VDD+0.5IO FT input high level voltage 2 5.5V VILInput low level voltage CMOS Ports -0.5 0.35VDD V VIHInput high level voltage 0.65VDD VDD+0.5
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