LVTTL33_ATB_CUP belongs to S_GPI_IO_T065GP, which is Sankalp’s General Purpose IO library in 65nm TSMC G+ process. It is a LVTTL bidirectional cell combined with an Analog Test bus which operates on 3.3 V or 2.5 V supply, at frequencies upto 200MHz (400 Mbps). The ATB can be used to measure voltages and currents in the analog circuitry with out a dedicated I/O Pad. Programmable pull-up, pull-down, drive strength and Schmitt trigger are some of the salient features for this cell. Cell dimensions are 25um x 190um.