What this part is — 54LS367ADM bus driver
The 54LS367ADM is a BUS DRIVER from the LS SERIES TTL logic family. It functions as a non-inverting buffer with three-state outputs, designed for driving bus lines or capacitive loads in digital systems. Typical applications include memory address drivers, clock drivers, and bus-oriented transmission systems where the LS series' lower power consumption and higher speed compared to standard TTL are needed.
Lifecycle and compliance
The part is RoHS non-compliant (contains lead in the solder finish), which is typical for military-grade hermetic packages. For designs that require RoHS compliance, a lead-free equivalent or an exemption may be needed; this part is intended for legacy and high-reliability BOMs where RoHS exemption applies.
Sourcing and availability
No second-source or direct cross-reference is listed in the manufacturer's records; the closest functional equivalent in the same logic family would be a 54LS367 variant with a different package suffix, but a pin-for-pin drop-in from another vendor is not documented. For dual-sourcing or supply resilience, a parametric search through the 54LS-series buffers is recommended.