The HB 52R 329E22 belongs to 8-byte DI MM (D ual In- line Memory Module) fa mily, and has bee n deve loped as an optimiz ed main memory solution for 8-byte proc essor applica tions. The HB 52R 329E22 is a 16M x 72 x 2-ba nk S ynchronous Dyna mic R AM Module, mounted 36 piec es of 64-Mbit S DRA M (H M5264405F TB ) sea led in TC P pac kage and 1 piec e of P LL cloc k drive r (2510) , 3 piec es re giste r drive r (162835) , 1 piec e of inver te r and 1 piec e of ser ia l EEP RO M (2- kbit EEP RO M) for P rese nce De te ct (P D). An outline of the HB 52R 329E22 is 168-pin socke t type pac kage (dua l lea d out). The ref ore, the HB 52R 329E22 make s high density mounting possible without surf ace mount tec hnology. The HB 52R 329E22 provide s common data inputs and outputs. Decoupling capacitors are mounted beside TCP on the module board.