IDQS3 is a crystal oscillator input receiver pad piece. QC is a non-inverting, CMOS-level schmitt trigger clock input buffer. QO is the output to the ODQFE01M. PADM is the bond pad from the Xtal-in. Logic Symbol Logic Schematic IDQS3 QC P PADM D QO Truth Table PADM L H QC L H QO L H Xtal-in .
