DD2508AETA Overview
DATA SHEET 256M bits DDR SDRAM EDD2508AETA (32M words × 8 bits) EDD2516AETA (16M words × 16 bits) Specifications Density: 256M bits Organization 8M words × 8 bits × 4 banks (EDD2508AETA) .. 4M words × 16 bits × 4 banks (EDD2516AETA) Package:.
DD2508AETA Key Features
- Double-data-rate architecture; two data transfers per clock cycle
- The high-speed data transfer is realized by the 2 bits prefetch pipelined architecture
- Bi-directional data strobe (DQS) is transmitted /received with data for capturing data at the receiver
- Data inputs, outputs, and DM are synchronized with DQS
- 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
- mands entered on each positive CK edge; data and data mask referenced to both edges of DQS
- Data mask (DM) for write data