CD54HC259, CD74HC259, CD54HCT259, CD74HCT259 Data.
Texas Instruments
CD74HC259 - 8-Bit Addressable Latch
CD54HC259, CD74HC259, CD54HCT259, CD74HCT259 Data sheet acquired from Harris Semiconductor SCHS173C November 1997 - Revised October 2003 High-Speed .