14. DRAM Types

• FPM DRAMs

  • FPM = Fast Page Mode

• EDO DRAMs

  • EDO = Extended Data Out

  • Uses pipelining to speedup access

• SDRAMs

  • Use an external clock to synchronize data output

  • Also called SDR SDRAMs (Single Data Rate)

• DDR SDRAMs

  • DDR = Double Data Rate

  • Provides data on both falling and rising edges of the clock

• RDRAMs

  • Rambus DRAM