The 74LS195APC is a 4-bit parallel-access shift register using TTL logic. It accepts serial or parallel data and shifts it on clock edges.
However, it carries a RoHS non-compliant status, which is common for older TTL logic devices that use lead-bearing solder finishes. For designs that require RoHS compliance, a lead-free equivalent from the same 74LS family should be evaluated.
The 74LS195APC is a 4-bit TTL shift register. The active lifecycle status removes the risk of an unplanned last-time-buy for ongoing production runs, but the RoHS non-compliant finish means you will need to verify assembly compatibility.