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EBE81AF4ABHA Datasheet 8GB Registered DDR2 SDRAM DIMM

Manufacturer: Elpida Memory

Datasheet Details

Part number EBE81AF4ABHA
Manufacturer Elpida Memory
File Size 280.66 KB
Description 8GB Registered DDR2 SDRAM DIMM
Download EBE81AF4ABHA Download (PDF)

Overview

DATA SHEET www.DataSheet4U.com 8GB Registered DDR2 SDRAM DIMM EBE81AF4ABHA (1024M words × 72 bits, 2 Ranks) Specifications • Density: 8GB • Organization  1024M words × 72 bits, 2 ranks • Mounting 36 pieces of 2G bits DDR2 SDRAM with sFBGA • Package: 240-pin socket type dual in line memory module (DIMM)  PCB height: 30.0mm  Lead pitch: 1.0mm  Lead-free (RoHS compliant) • Power supply: VDD = 1.8V ± 0.1V • Data rate: 667Mbps (max.) • Eight internal banks for concurrent operation (components) • Interface: SSTL_18 • Burst lengths (BL): 4, 8 • /CAS Latency (CL): 3, 4, 5 • Precharge: auto precharge option for each burst access • Refresh: auto-refresh, self-refresh • Refresh cycles: 8192 cycles/64ms  Average refresh period 7.8µs at 0°C ≤ TC ≤ +85°C 3.

Key Features

  • Double-data-rate architecture; two data transfers per clock cycle.
  • The high-speed data transfer is realized by the 4 bits prefetch pipelined architecture.
  • Bi-directional differential data strobe (DQS and /DQS) is transmitted/received with data for capturing data at the receiver.
  • DQS is edge-aligned with data for READs; centeraligned with data for WRITEs.
  • Differential clock inputs (CK and /CK).
  • DLL aligns DQ and DQS transitions with CK transi.