DM5493AN divide by 8 binary counter by National Semiconductor. Package: 14-DIP Download National Semiconductor DM5493AN .pdf datasheet: Status: NOS ( New Old Stock) in original National tubes and packaging. Tested Components: YES RoHS compliant: no *** Note these are the 54 "AN" in a plastic case not the 54 " J" in a ceramic case *** verified as being correct product but not for military use, instead for testing and "high reliability" uses.