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EBS25EC8APFA-7A Datasheet

  • EBS25EC8APFA-7A

  • 256MB Unbuffered SDRAM DIMM

  • 14頁

  • ELPIDA

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DATA SHEET
256MB Unbuffered SDRAM DIMM
EBS25EC8APFA (32M words
脳
72 bits, 1 bank)
Description
The EBS25EC8APFA is 32M words
脳
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
鈥?/div>
Fully compatible with 8 bytes DIMM: JEDEC
standard outline
鈥?/div>
168-pin socket type dual in line memory module
(DIMM)
錚?/div>
PCB height: 34.93mm (1.38inch )
錚?/div>
Lead pitch: 1.27mm
鈥?/div>
3.3V power supply
鈥?/div>
Clock frequency: 133MHz (max.)
鈥?/div>
LVTTL interface
鈥?/div>
Data bus width:
脳
72 ECC
鈥?/div>
Single pulsed /RAS
鈥?/div>
4 Banks can operates simultaneously and
independently
鈥?/div>
Burst read/write operation and burst read/single write
operation capability
鈥?/div>
Programmable burst length (BL): 1, 2, 4, 8
鈥?/div>
2 variations of burst sequence
錚?/div>
Sequential
錚?/div>
Interleave
鈥?/div>
Programmable /CAS latency (CL): 2, 3
鈥?/div>
Byte control by DQMB
鈥?/div>
Refresh cycles: 8192 refresh cycles/64ms
鈥?/div>
2 variations of refresh
錚?/div>
Auto refresh
錚?/div>
Self refresh
Document No. E0209E20 (Ver. 2.0)
Date Published June 2002 (K) Japan
URL: http://www.elpida.com
錚〦llpida
Memory, Inc. 2001-2002

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