Device function and fit
The SN74LS248N is a BCD-to-7-segment decoder/driver that converts a 4-bit binary-coded-decimal input into the segment drive signals for a common-anode LED or incandescent display. It includes a ripple-blanking input and output for leading/trailing zero suppression, plus a lamp-test input that lights all segments for functional checkout. Active lifecycle — Texas Instruments still manufactures this part, so it remains a valid BOM line for new builds and repair stock without an end-of-life clock.
Compliance and package reality
RoHS non-compliant — the SN74LS248N uses a lead-bearing finish (likely tin-lead solder dip or plated leads). This is typical for legacy logic parts and acceptable in RoHS-exempt categories (military, aerospace, medical, industrial control) or for repair of existing assemblies where lead-free rework is not required. Supplied in Bulk — loose tubes, not tape-and-reel. For automated pick-and-place, the DIP package requires a tube feeder or tray; for hand assembly or rework, the tube format is straightforward.