Final answer:
The datasheets of the 74LS74 and 74LS257 ICs provide detailed pin configurations and other important technical specifications.
Step-by-step explanation:
The new ICs mentioned in the question are the 74LS74 (dual flip flop) and the 74LS257 (4-bit 2-to-1 mux). The datasheets of these ICs provide detailed pin configurations to help users understand how to connect and use the ICs.
They also provide other important technical specifications such as voltage and current ratings, logic diagrams, and timing information.