4-bit bus driver — active, RoHS non-compliant
The Texas Instruments 74BCT244SCX is a 4-bit bus driver, which means it takes a 4-bit input and drives it onto a bus line with enough current to fan out to multiple loads without signal degradation. Production status is Active per the lifecycle record, so this part is still being manufactured and can be ordered for new designs or replacements. The package is Bulk — loose units rather than tape-and-reel, which is typical for through-hole or larger surface-mount parts that are hand-placed or used in low-volume assembly.
Sourcing and compliance reality
Note the RoHS status is listed as non-compliant — this part contains lead (Pb) and does not meet the Restriction of Hazardous Substances directive. If your BOM requires RoHS compliance, you will need to source a lead-free alternative or accept the non-compliant status for exempt applications (e.g., military, high-rel).
Peer comparison — why the SN74AHCT540DGVR is not a drop-in
The SN74AHCT540DGVR operates at 4.5 V supply, while the 74BCT244SCX supply voltage is not specified in this record — but the bit count and logic function differ: 8-bit inverting vs 4-bit non-inverting, so they are not pin-compatible without board rework.