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EBJ20RE4BAFA-AE-E Datasheet(PDF) 1 Page - Elpida Memory |
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EBJ20RE4BAFA-AE-E Datasheet(HTML) 1 Page - Elpida Memory |
1 / 20 page Document No. E1253E40 (Ver. 4.0) Date Published December 2008 (K) Japan Printed in Japan URL: http://www.elpida.com Elpida Memory, Inc. 2007-2008 DATA SHEET 2GB Registered DDR3 SDRAM DIMM EBJ20RE4BAFA (256M words × 72 bits, 1 Rank) Specifications • Density: 2GB • Organization 256M words × 72 bits, 1 rank • Mounting 18 pieces of 1G bits DDR3 SDRAM sealed in FBGA • Package: 240-pin socket type dual in line memory module (DIMM) PCB height: 30.5mm (max.) Lead pitch: 1.0mm Lead-free (RoHS compliant) • Power supply: VDD = 1.5V ± 0.075V • Data rate: 1333Mbps/1066Mbps/800Mbps (max.) • Eight internal banks for concurrent operation (components) • Interface: SSTL_15 • Burst lengths (BL): 8 and 4 with Burst Chop (BC) • /CAS Latency (CL): 6, 7, 8, 9 • /CAS write latency (CWL): 5, 6, 7 • Precharge: auto precharge option for each burst access • Refresh: auto-refresh, self-refresh • Refresh cycles Average refresh period 7.8 µs at 0°C ≤ TC ≤ +85°C 3.9 µs at +85°C < TC ≤ +95°C • Operating case temperature range TC = 0°C to +95°C Features • Double-data-rate architecture; two data transfers per clock cycle • The high-speed data transfer is realized by the 8 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; center- aligned with data for WRITEs • Differential clock inputs (CK and /CK) • DLL aligns DQ and DQS transitions with CK transitions • Commands entered on each positive CK edge; data and data mask referenced to both edges of DQS • Posted /CAS by programmable additive latency for better command and data bus efficiency • On-Die-Termination (ODT) for better signal quality Synchronous ODT Dynamic ODT Asynchronous ODT • Multi Purpose Register (MPR) for temperature read out • ZQ calibration for DQ drive and ODT • Programmable Partial Array Self-Refresh (PASR) • /RESET pin for Power-up sequence and reset function • SRT range: Normal/extended Auto/manual self-refresh • Programmable Output driver impedance control • 1 piece of registering clock driver and 1 piece of serial EEPROM (256 bytes EEPROM) for Presence Detect (PD) • Class B temperature sensor functionality with EEPROM |
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