The 40098BDM is a bus driver from the * series, designed to buffer and drive bus lines in digital logic systems. It is a functional building block for parallel data paths, address buses, or control signal distribution in legacy TTL/CMOS backplanes. The part is listed with an Active product status, meaning it remains in the current production portfolio and is not subject to an end-of-life notice.
This part is RoHS non-compliant. That means it contains lead (Pb) or other restricted substances above the RoHS threshold. If your assembly line is RoHS-only (lead-free solder, no exemption), this part will not pass incoming material inspection. It is intended for repair, legacy production, or military/aerospace applications where a leaded solder exemption applies.
Sourcing and supply posture
That said, this is a legacy bus driver — not a high-volume commodity — so stocking depth at franchised distributors may be shallow. If you are repairing a board that has this part on it, the Active status is good news: you are not forced into a substitute or a scavenged pull.
