1 x 8:1 bus switch mux/demux for low-voltage digital paths
The SN74CBTLV3251DR is a single 8:1 multiplexer/demultiplexer from Texas Instruments' 74CBTLV series, designed for low-voltage digital signal routing where minimal propagation delay and near-zero on-resistance matter.
Supply range and package — board-fit constraints
Because the part is a single-supply bus switch, the Vcc pin needs a 0.1 µF ceramic placed within 5 mm of the pin to keep the internal pass-gate bias stable during fast channel switching — the same decoupling discipline as any 74CBTLV-family part.