In recent years, reversible logic is playing an essential role for getting the satisfied outcome in the digital world of designing, especially where the low power application is needed. In this paper a new reversible gate has been proposed. Furthermore, different types of multiplexer have been designed. Also a positive edge triggered T flip flop has been realized by this proposed gate. Different types of counter also have been implemented here using this T flip flop. Afterwards this paper represents an approach for designing a sequence generator by these counter and multiplexer (SGCAM) of this proposed reversible gate. Sequence generator circuit generates a desired sequence of bits and can be used as a code generator, random bit generator or a prescribed period generator. These types of generator circuits can be used for various type of coding technique particularly required in digital communication.