BUY SN5493AJ https://www.utsource.net/itm/p/818301.html
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The SN5493AJ is a 14-pin dual JK flip-flop with reset manufactured by Texas Instruments. It is a part of the SN54/74LS family of logic ICs. Features: * Wide operating voltage range: 2V to 6V * Low power consumption * High noise immunity * High speed operation * Outputs source/sink 24mA Applications: * Frequency dividers * Shift registers * Counters * Timers * Data storage * Pulse generation * Signal gating (For reference only)