The configurable 48bit up/down counter iC-MD is designed for the easy connection of fast incremental encoders, enabling count frequencies of up to 40MHz. The integrated direction discriminator detects the direction of movement and moves the counter up or down with each edge at the A and B inputs. The Fast ABZ encoder interface features TTL/RS422/LVDS inputs for microprocessors. The counter is available in a TSSOP20 package.