The CLIC Tracker Detector (CLICTD) is a monolithic active pixel sensor targeted at the tracking detector of a future experiment at the Compact Linear Collider (CLIC). The chip features a matrix of ${16\times128}$ cells, each cell measuring $300\times30~\mu$m$^{2}$.
The cells are segmented in the long direction in order to maintain the benefits of the small collection electrode. In the digital logic, a simultaneous $8$-bit Time of Arrival and $5$-bit Time over Threshold measurement is performed. A $180$ nm HR-CMOS Imaging Process was selected for the design of a chip that will meet the requirements of the tracker at CLIC. In this document, the CLICTD design and chip interface are presented.