EBE21EE8ACWA - Elpida Memory

EBE21EE8ACWA 2GB Unbuffered DDR2 SDRAM DIMM

Pin name A0 to A13 A10 (AP) BA0, BA1, BA2 DQ0 to DQ63 CB0 to CB7 /RAS /CAS /WE /CS0, /CS1 CKE0, CKE1 CK0 to CK2 /CK0 to /CK2 DQS0 to DQS8, /DQS0 to /DQS8 DM0 to DM8 SCL SDA SA0 to SA2 VDD VDDSPD VREF VSS ODT0, ODT1 NC Function Address input Row address Column address Auto precharge Bank select address Data input/output Check bit (Data input/output) Row addre.

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 transitions
• Commands entered on each positive CK edge; data and data mask referenced to both edges of DQS
• Data mask (DM) for write data
• Posted /CAS .