74F525 Datasheet, PDF (9/10 Pages) National Semiconductor (TI) – Programmable Counter

Physical Dimensions inches (millimeters)
28-Lead (0 300 Wide) Molded Small Outline Package JEDEC (S)
NS Package Number M28B
28-Lead (0 600 Wide) Molded Dual-In-Line Package (P)
NS Package Number N28B
9