SN74109N

Dual J-K Positive-Edge-Triggered Flip-Flop with Clear and Preset, standard 16-pin plastic dual-in-line package footprint manufactured by Texas Instruments. Includes dedicated asynchronous clear and preset inputs optimized to force logic overrides synchronously with system pulse steps. Designed for master system timing arrays, multi-bit storage registers, and phase-detector loops. Industry exact equivalents include Signetics N74109N, Fairchild DM74109N, Motorola MC74109N, and NTE74109. Historical equipment applications include Namco System 1 boards, Atari ST internal glue logic, Akai MPC60samplers, Rock-Ola 490 jukeboxes, and Bally Addams Family pinball tables.