- The high-speed data transfer is realized by the 8 bits prefetch pipelined architecture
- Double data-rate architecture: two data transfers per clock cycle
- 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
- Data mask (DM) for write data
- 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 pre-defined