Quad non-inverting buffer with 3-state outputs — 74LS family, 5V logic
Each output can sink 16mA and source 5.2mA, making it suitable for driving bus lines or capacitive loads in 5V digital systems.
The 4.75V to 5.25V supply range is a tight 5V ±5% window, typical for 74LS logic. If your rail is a 5V regulated supply with ±2% tolerance, this part fits without margin concerns. The 3-state outputs (high, low, high-impedance) let multiple buffers share a common bus line — the high-Z state disconnects the output so another device can drive the line. The 16mA sink and 5.2mA source capability is modest by today's standards but adequate for driving one or two standard LS loads or a short PCB trace; for heavily loaded backplanes or long cables, a bus transceiver with higher drive (e.g., 74ABT or 74LVTH) would be a better fit.
Package and footprint — 14-SOIC surface-mount
Housed in a 14-SOIC package with a 5.30mm body width (0.209"), the SN74LS126ANS is a surface-mount device intended for automated assembly. This is a standard, widely supported footprint — no exotic land pattern required.
The ROHS3 compliance covers the full ten restricted substances, including the four phthalates added in the 2015 amendment.
As an active, standard-logic part, the SN74LS126ANS is available through our independent distribution channel. For volume BOM lines or kitting requirements, we can provide a firm quotation including lead time and quantity breaks. No minimum order restrictions apply.