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MC-458CB642XS

更新时间： 2024-11-26 11:49:03
品牌 Logo 应用领域
尔必达 - ELPIDA /
页数 文件大小 规格书
14页 130K
描述
8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM)

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MC-458CB642XS 数据手册

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DATA SHEET  
MOS INTEGRATED CIRCUIT  
MC-458CB642XS  
8M-WORD BY 64-BIT  
SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM)  
Description  
The MC-458CB642XS is 8,388,608 words by 64 bits synchronous dynamic RAM module (Small Outline DIMM) on  
which 4 pieces of 128M SDRAM: µPD45128163 are assembled.  
This module provide high density and large quantities of memory in a small space without utilizing the surface-  
mounting technology on the printed circuit board.  
Decoupling capacitors are mounted on power supply line for noise reduction.  
Features  
• 8,388,608 words by 64 bits organization  
• Clock frequency and access time from CLK  
Part number  
/CAS latency  
CL = 3  
Clock frequency (MAX.)  
133 MHz  
Access time from CLK (MAX.)  
MC-458CB642XS-A75  
5.4 ns  
6 ns  
CL = 2  
100 MHz  
MC-458CB642XS-A75L  
CL = 3  
133 MHz  
5.4 ns  
6 ns  
CL = 2  
100 MHz  
• Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge  
• Pulsed interface  
• Possible to assert random column address in every cycle  
• Quad internal banks controlled by BA0, BA1 (Bank Select)  
• Programmable burst-length: 1, 2, 4, 8 and Full Page  
• Programmable wrap sequence (Sequential / Interleave)  
• Programmable /CAS latency (2, 3)  
• Automatic precharge and controlled precharge  
• CBR (Auto) refresh and self refresh  
• Single 3.3V ± 0.3V power supply  
• LVTTL compatible  
• 4,096 refresh cycles/64 ms  
• Burst termination by Burst Stop command and Precharge command  
• 144-pin small outline dual in-line memory module (Pin pitch = 0.8 mm)  
• Unbuffered type  
• Serial PD  
The information in this document is subject to change without notice. Before using this document, please  
confirm that this is the latest version.  
Not all devices/types available in every country. Please check with local Elpida Memory, Inc. for  
availability and additional information.  
Document No. E0115N20 (Ver. 2.0)  
Date Published September 2001 (K)  
Printed in Japan  
This product became EOL in March, 2004.  
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.  
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MC-458CB642XS-A75 ELPIDA

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM)
MC-458CB642XS-A75L ELPIDA

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM)
MC-458CB646 ELPIDA

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
MC-458CB646 NEC

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
MC-458CB646EFB-A10 ELPIDA

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
MC-458CB646EFB-A10 NEC

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
MC-458CB646EFB-A80 ELPIDA

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
MC-458CB646EFB-A80 NEC

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 		8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
MC-458CB646F-A10 ELPIDA

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 		Synchronous DRAM Module, 8MX64, 6ns, CMOS, DIMM-168
MC-458CB646F-A80 NEC

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 		Synchronous DRAM Module, 8MX64, 6ns, CMOS, DIMM-168

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