Part EDS2504ACTA
Description 256M bits SDRAM
Manufacturer Elpida Memory
Size 559.75 KB
Elpida Memory
EDS2504ACTA

Overview

The EDS2504AC/AP is a 256M bits SDRAM organized as 16,777,216 words × 4 bits × 4 banks. The EDS2508 AC/AP is a 256M bits SDRAM organized as 8,388,608 words × 8 bits × 4 banks.

  • 3.3V power supply Clock frequency: 133MHz (max.) LVTTL interface Single pulsed /RAS 4 banks can operate simultaneously and independently
  • Burst read/write operation and burst read/single write operation capability
  • Programmable burst length* (BL): 1, 2, 4, 8
  • 2 variations of burst sequence  Sequential (BL = 1, 2, 4, 8)  Interleave (BL = 1, 2, 4, 8)
  • Programmable /CAS latency (CL): 2, 3
  • Byte control by DQM : DQM (EDS2504AC/AP, EDS2508AC/AP) : UDQM, LDQM (EDS2516AC/AP)
  • Refresh cycles: 8192 refresh cycles/64ms
  • 2 variations of refresh  Auto refresh  Self refresh Note: EDS2504AP/08AP/16AP is supported full page function.