Ic Cpld (Complex Programmable Logic Device) is a type of integrated circuit that can be programmed after manufacturing, enabling it to perform various logic functions. The specific designation "128Mc" suggests it has 128 megacells, which are the basic building blocks for implementing digital circuits. "15Ns" likely refers to its propagation delay, indicating how long it takes for a signal to pass through the device. The "160Tqfp" part might refer to the package type and pin count, with TQFP (Thin Quad Flat Package) being a common package type and 160 being the number of pins.