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Description

The EBS25EC8APSA is 32M words × 72 bits, 1 bank Synchronous Dynamic RAM Small Outline Dual In-line Memory Module (S.O.DIMM), mounted 9 pieces of 256M bits SDRAM (EDS2508APTA) sealed in TSOP package. This module provides high density and large quantities of memory in a small space without utilizing the surface mounting technology. Decoupling capacitors are mounted on power supply line for noise reduction.

Features

? Fully compatible with 8 bytes S.O.DIMM: JEDEC standard outline

? 144-pin socket type small outline dual in line memory module (S.O.DIMM)

- PCB height: 38.10mm (1.5inch )

- Lead pitch: 0.80mm

? 3.3V power supply

? Clock frequency: 100MHz 133MHz (max.)

? LVTTL interface

? Data bus width: × 72 ECC

? Single pulsed /RAS

? 4 Banks can operates simultaneously and independently

? Burst read/write operation and burst read/single write operation capability

? Programmable burst length (BL): 1, 2, 4, 8, Full page

? 2 variations of burst sequence

- Sequential

- Interleave

? Programmable /CAS latency (CL): 2, 3

? Byte control by DQMB

? Refresh cycles: 8192 refresh cycles/64ms

? 2 variations of refresh

- Auto refresh

- Self refresh