Memory Type Quiz ©Richard L. Goldman June 18, 2002

AcronymStands for…Description TTL CMOS RAM ROM PROM EPROM EEPROM SRAM DRAM FPM DRAM EDO DRAM BEDO DRAM SDRAM DDR SDRAM DRDRAM

AcronymStands for…Description TTLTransistor-Transistor LogicStandard digital voltage circuit CMOS Complementary Metal-Oxide Semiconductor Low power consumption circuit RAMRandom Access MemoryTemporary memory ROMRead Only MemoryFirmware - Program built into die PROMProgrammable ROMOne-time programmable EPROMErasable PROMUV erasable & reprogrammable EEPROMElectrically Erasable PROMFlashable ROM SRAMStatic RAMCache DRAMDynamic RAMMain memory – requires refresh FPM DRAMFast Page Mode DRAMRow address left on EDO DRAMExtended Data Out DRAMOutput drivers left on BEDO DRAMBurst EDO DRAMReads consecutive bytes SDRAMSynchronous DRAMSynchronized with memory bus DDR SDRAM Double Data Rate SDRAM (SDRAM II) Two transmissions per clock cycle DRDRAMDirect Rambus DRAMUses narrow channel bus