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Elpida Memory - 256MB Unbuffered SDRAM DIMM

Numéro de référence EBS25EC8APFA
Description 256MB Unbuffered SDRAM DIMM
Fabricant Elpida Memory 
Logo Elpida Memory 





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EBS25EC8APFA fiche technique
DATA SHEET
256MB Unbuffered SDRAM DIMM
EBS25EC8APFA (32M words × 72 bits, 1 bank)
Description
The EBS25EC8APFA is 32M words × 72 bits, 1 bank
Synchronous Dynamic RAM Unbuffered Module,
mounted 9 pieces of 256M bits SDRAM 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 DIMM: JEDEC
standard outline
168-pin socket type dual in line memory module
(DIMM)
PCB height: 34.93mm (1.38inch )
Lead pitch: 1.27mm
3.3V power supply
Clock frequency: 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
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. E0209E20 (Ver. 2.0)
Date Published June 2002 (K) Japan
URL: http://www.elpida.com
Ellpida Memory, Inc. 2001-2002

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