Welcome to Cologne Chip The smart semiconductor company GateMateTM FPGA Get an overview of Cologne Chip's new technology with this information sheet. All benefits of GateMate FPGA One IC family fits it all ISDN Controller ICs of XHFC Series are available with 1 up to 4 ISDN interfaces for all BRI applications. Find out, which IC is the right one for you. We are exhibiting on electronica 2022. Meet our engineers on this show in Munich, Germany.