DESCRIPTION

The WED3EG7233S is a 2x16Mx72 Double Data Rate SDRAM memory module based on 128Mb DDR SDRAM component. The module consists of eighteen 16Mx8 DDR SDRAMs in 66 pin TSOP packages mounted on a 184 pin FR4 substrate.

Synchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on both edges and Burst Lengths allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.

FEATURES

■ Double-data-rate architecture

■ DDR200 and DDR266

• JEDEC design specifi ed

■ Bi-directional data strobes (DQS)

■ Differential clock inputs (CK & CK#)

■ Programmable Read Latency 2,2.5 (clock)

■ Programmable Burst Length (2,4,8)

■ Programmable Burst type (sequential & interleave)

■ Edge aligned data output, center aligned data input.

■ Auto and self refresh

■ Serial presence detect

■ Dual Rank

■ Power supply: 2.5V ± 0.20V

■ JEDEC standard 184 pin DIMM package

• JD3 PCB height: 30.48mm (1.20)