The DM74LS193N is a 4-bit binary up/down synchronous counter with an asynchronous reset. It is a 16-pin dual in-line package (DIP) integrated circuit (IC) manufactured by National Semiconductor (NS). Description: The DM74LS193N is a 4-bit synchronous binary counter with an asynchronous reset. It has four J-K flip-flops with common clock and clear inputs. The counter can be preset to any count between 0 and 15 by loading the appropriate data into the four flip-flops. The counter can be operated in either the up or down mode, depending on the state of the UP/DOWN control input. The output of each flip-flop is available at the Q outputs. Features: 4-bit synchronous binary counter Asynchronous reset J-K flip-flops with common clock and clear inputs Up/down counter operation Outputs available at Q outputs 16-pin DIP package Applications: The DM74LS193N can be used in a variety of applications, including frequency division, counting, and timing. It can be used to create a divide-by-2,