PC100
From Wikipedia, the free encyclopedia
PC100 is a standard for internal removable computer random access memory, defined by the Joint Electron Device Engineering Council (JEDEC). PC100 refers to Synchronous DRAM operating at a clock frequency of 100 MHz, on a 64-bit bus, at a voltage of 3.3 V. PC100 is available in 168-pin DIMM and 144-pin SO-DIMM form factors. PC100 is backward compatible with PC66.
A module built out of 100 MHz SDRAM chips is not necessarily capable of operating at 100 MHz. The PC100 standard specifies the capabilities of the memory module as a whole.

