Bus driver for TTL logic — ALS series, active, RoHS non-compliant
The SN74ALS756-1N is a bus driver from the Texas Instruments ALS series, designed to drive bus lines in digital systems. It is a single-channel device intended for TTL-compatible logic levels.
Active lifecycle — no LTB risk for new builds
For a BOM freeze, this is straightforward — no urgent need to qualify a drop-in replacement. However, the part is RoHS non-compliant, so it cannot be used in assemblies requiring lead-free solder per EU RoHS directives. That restricts it to legacy production runs, military/aerospace contracts with leaded exemptions, or repair stock for existing boards.
Sourcing and supply posture
This part is sourced through independent distribution and quoted to order against an RFQ. For volume commitments or blanket orders, the active status supports multi-year supply without the urgency of a last-time-buy window.
