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