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HB54A5129F2U-A75B

产品描述256mb, 512mb registered ddr sdram dimm
文件大小211KB,共17页
制造商Elpida Memory
官网地址http://www.elpida.com/en
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HB54A5129F2U-A75B概述

256mb, 512mb registered ddr sdram dimm

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DATA SHEET
256MB, 512MB Registered DDR SDRAM DIMM
HB54A2569F1U (32M words
×
72 bits, 1 Bank)
HB54A5129F2U (64M words
×
72 bits, 2 Banks)
Description
The HB54A2569F1U, HB54A5129F2U are Double
Data Rate (DDR) SDRAM Module, mounted 256M bits
DDR SDRAM (HM5425801BTT) sealed in TSOP
package, and 1 piece of serial EEPROM (2k bits
EEPROM) for Presence Detect (PD).
The HB54A2569F1U is organized as 32M
×
72
×
1
bank mounted 9 pieces of 256M bits DDR SDRAM.
The HB54A5129F2U is organized as 32M
×
72
×
2
banks mounted 18 pieces of 256M bits DDR SDRAM.
Read and write operations are performed at the cross
points of the CK and the /CK. This high-speed data
transfer is realized by the 2 bits prefetch-pipelined
architecture. Data strobe (DQS) both for read and
write are available for high speed and reliable data bus
design. By setting extended mode register, the on-chip
Delay Locked Loop (DLL) can be set enable or disable.
An outline of the products is 184-pin socket type
package (dual lead out). Therefore, it makes high
density mounting possible without surface mount
technology. It provides common data inputs and
outputs. Decoupling capacitors are mounted beside
each TSOP on the module board.
Features
184-pin socket type package (dual lead out)
Outline: 133.35mm (Length)
×
30.48mm (Height)
×
4.00mm (Thickness)
Lead pitch: 1.27mm
2.5V power supply (VCC/VCCQ)
SSTL-2 interface for all inputs and outputs
Clock frequency: 143MHz/133MHz/125MHz (max.)
Data inputs, outputs and DM are synchronized with
DQS
4 banks can operate simultaneously and
independently (Component)
Burst read/write operation
Programmable burst length: 2, 4, 8
Burst read stop capability
Programmable burst sequence
Sequential
Interleave
Start addressing capability
Even and Odd
Programmable /CAS latency (CL): 3, 3.5
8192 refresh cycles: 7.8µs (8192/64ms)
2 variations of refresh
Auto refresh
Self refresh
EO
Document No. E0206H30 (Ver. 3.0)
Date Published September 2002 (K) Japan
URL: http://www.elpida.com
L
This product became EOL in May, 2004.
Elpida
Memory, Inc. 2001-2002
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.
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描述 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm 256mb, 512mb registered ddr sdram dimm
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