4-bit bus driver, TTL, inverting
The 74LS240SC is a 4-bit bus driver from Texas Instruments, built on low-power Schottky TTL logic with inverting outputs and 3-state control — it drives bus lines in parallel backplane or memory-address applications where the data path must be tri-stated when the bus is shared.
Sourcing and lifecycle
Texas Instruments marks the 74LS240SC as active — no NRND flag, no last-time-buy window. The part is sourced through independent distribution and pricing is confirmed at RFQ; lead time varies with the order size and current allocation cycle, so a quick quote is the cleanest way to lock availability. Packaged in Bulk, which suits production kitting or bench stock — not a reeled tape for automated placement, so factor in manual handling if the line is pick-and-place.