DM7211 Datasheet
(DM7210 / DM7211) 8-Line Data Selectors / Multiplexers
Manufacturer: National Semiconductor (now Texas Instruments)
Download the DM7211 datasheet PDF.
This datasheet also includes the DM7210 variant, as both parts are published together in a single manufacturer document.
Note: The manufacturer provides a single datasheet file (DM7210_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.