The 74AC245SC is an 8-bit non-inverting bus transceiver from On Semiconductor. It operates from 2V to 6V with 24mA output drive and 8.5ns propagation delay.
The On Semiconductor MC74AC245DW is an octal bidirectional transceiver with 3-state outputs. It operates from 2V to 6V and is suitable for bus-oriented applications.