The important thing distinction between these more recent pin types and the initial DIP configuration is always that SOJ and TSOP chips are floor-mounted towards the PCB. In other words, the pins are soldered straight to the surface area with the board, not inserted in holes or sockets. EDO DRAM: https://laptop-chargers32321.bloginwi.com/64680744/5-simple-statements-about-memory-modules-ram-explained