The 74S113PC: Note the RoHS status: this part is RoHS non-compliant, which means it contains lead (Pb) in the solder finish or internal construction. If your assembly line or end-product requires RoHS compliance, you will need to qualify an alternative or manage an exemption.
What is a J-K flip-flop and why does the 74S113 matter?
The 74S113PC is a J-K flip-flop — a fundamental sequential logic building block. It stores one bit of data and toggles its output on a clock edge based on the J and K inputs. The 'S' in 74S113 denotes the Schottky-clamped TTL family, which offers higher speed than standard 7400-series logic (typical propagation delays in the 5-10 ns range). This part belongs to the Microcontrollers & Processors category on the storefront, but it is a discrete logic IC, not a microcontroller. It is used in glue logic, state machines, counters, and register circuits where a small number of flip-flops are needed without the overhead of a programmable device.
Package and sourcing reality
The 74S113PC is supplied in Bulk packaging — loose tubes or trays, not tape-and-reel. For automated pick-and-place assembly, you will need to confirm that your feeder system can handle tube-fed DIP packages or request a different packaging option from your distributor.