Study of a Triggered, Full Event Zero-Suppressed Front-End Readout Chain operating up to 1 MHz Trigger Rate and Pileup of 300 for CMS Outer Tracker upgrade at HL-LHC

The CMS Outer Tracker at HL-LHC will have to cope with pileup of 300 events per bunch cross-ing and a trigger rate of up to 1 MHz. The front-end electronics readout chain consists of read-out ASICs connected to a data concentrator ASIC featuring zero-suppression. This contributionpresents the methodology and the analysis work for the buffer sizing and exception handling fea-turing a robust data readout synchronization, with an event loss probability lower than 0.1 % atthe highest pileup condition and a power density lower than 100 mW/cm$^2$ .