Single 2:4 decoder/demux for mixed-voltage logic
The 32mA per output drive (both high and low) is enough to sink LED current or fan out to multiple CMOS loads directly. Housed in the compact SM8 package (8-LSSOP or 8-MSOP, 2.80mm body width), it suits space-constrained layouts in industrial control, sensor interfaces, and general-purpose address decoding.
The 1.65V to 5.5V supply range covers the common 1.8V, 2.5V, and 3.3V rails, and stretches to 5V for legacy TTL-compatible designs. If your design lives in a conditioned server room, the commercial-grade sibling (0°C to 70°C) may save a few cents, but the SN74LVC1G139DCTT covers both environments without a qualification change.
The ROHS3 compliance is current and covers global shipping requirements.
Package and footprint — SM8 (8-LSSOP / 8-MSOP)
The SM8 package (supplier device package code) is a 0.110-inch-wide, 2.80mm-body 8-lead SSOP or MSOP. The 0.65mm pin pitch is standard for fine-pitch SOP footprints, and the body is small enough to fit under a 0.5W resistor. No thermal pad is needed; the package dissipates through the leads. If your layout already uses 8-MSOP for op-amps or level translators, this part drops in with no board change.