ITEM NAME:5pcs Dip16 Integrated Circuit Logic IC SN74LS189AN 5pcs Digital DIP-16 LOGIC IC Units Chip SN74LS189AN 74LS189AN Replacement SPECIFICATIONS.(Manufacture Part Number: SN74LS189AN, 74LS189AN. Item included: 5 x DIP-16 LOGIC IC. 3) Easy installation. 2) Perfect match for the original one.