Dynamic RAM: modules

DRAM packages are in turn often assembled into plug-in modules for easier handling. Some standard module types in order of increasing speeds are:

-DIP(Dual in-line Package) 16-pin (chip)

-SIPP(Single In-line Pin Package) (usually FPRAM)

-SIMM(Single In-line Memory Module) 30-pin (usually FPRAM)

-SIMM 72-pin (often EDO RAM)

-DIMM(Dual In-line Memory Module) 168-pin (SDRAM: Synchronous DRAM)

-DIMM 184-pin (DDR SDRAM: Double Data Rate SDRAM)

-RIMM(Rambus In-line Memory Module) 184-pin (RDRAM: Rambus DRAM)

-DIMM 240-pin (DDR2 SDRAM / DDR3 SDRAM)