EBS25UC8APMA 查看數據表（PDF） - Elpida Memory, Inc

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EBS25UC8APMA

256MB SDRAM Micro DIMM

Elpida Memory, Inc 

DATA SHEET

256MB SDRAM Micro DIMM

EBS25UC8APMA (32M words × 64 bits, 1 bank)

Description

The EBS25UC8APMA is 32M words × 64 bits, 1 bank

Synchronous Dynamic RAM Micro Dual In-line Memory

Module (Micro DIMM), mounted 8 pieces of 256M bits

SDRAM sealed in µBGA 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.

Note : Do not push the cover or drop the modules in

order to protect from mechanical defects, which

would be electrical defects.

Features

• Fully compatible with 8 bytes Micro DIMM: JEDEC

standard outline

• 144-pin socket type micro dual in line memory

module (Micro DIMM)

 PCB height: 30.00mm (1.18inch )

 Lead pitch: 0.50mm

• 3.3V power supply

• Clock frequency: 100MHz/133MHz (max.)

• LVTTL interface

• Data bus width: × 64 non-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

Document No. E0241E30 (Ver. 3.0)

Date Published May 2002 (K) Japan

URL: http://www.elpida.com

Elpida Memory, Inc. 2002

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