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EBE41RE4ACFA Datasheet 4GB Registered DDR2 SDRAM DIMM

Manufacturer: Elpida Memory

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Datasheet Details

Part number EBE41RE4ACFA
Manufacturer Elpida Memory
File Size 301.23 KB
Description 4GB Registered DDR2 SDRAM DIMM
Datasheet download datasheet EBE41RE4ACFA Datasheet

Overview

DATA SHEET www.DataSheet4U.com 4GB Registered DDR2 SDRAM DIMM EBE41RE4ACFA (512M words × 72 bits, 2 Ranks) Specifications • Density: 4GB • Organization  512M words × 72 bits, 2 ranks • Mounting 36 pieces of 1G bits DDR2 SDRAM sealed in FBGA • 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/533Mbps/400Mbps (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.

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