參數(shù)資料
型號(hào)： MSM518121A-70ZS
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： 131,072-Word X 8-Bit Multiport DRAM
中文描述： 131,072字× 8位多端口內(nèi)存
文件頁(yè)數(shù)： 1/33頁(yè)
文件大?。?/td> 368K
代理商： MSM518121A-70ZS
Semiconductor
MSM518121A
1/33
131,072-Word
￥
8-Bit Multiport DRAM
DESCRIPTION
The MSM518121A is an 1-Mbit CMOS multiport memory composed of a 131,072-words by 8-bit
dynamic random access memory, RAM port, and a 256-word by 8-bit static serial access memory,
SAM port. The RAM port and SAM port operate independently and asynchronously.
The MSM518121A supports three types of operation: random access to and from the RAM port,
high speed serial access to and from the SAM port and bidirectional transfer of data between any
selected row in the RAM port and the SAM port. The RAM port and the SAM port can be accessed
independently except when data is being transferred between them internally.
FEATURES
Single power supply of 5 V
±
10% with a built-in VBB generator
All inputs and outputs :TTL compatible
Multiport organization
RAM port : 128K word
￥
8 bits
SAM port :
256 word
￥
8 bits
RAM port
Fast page mode, Read modify write
CAS
before
RAS
refresh, Hidden refresh
RAS
only refresh, Standard write-per-bit
SAM port
High speed serial
Read / Write capabillity
Fully static register
256 tap location
RAM-SAM bidirectional, Read / Write / Pseudo write, Real time read transfer
Package options:
40-pin 475 mil plastic ZIP
(ZIP40-P-475-1.27)
40-pin 400 mil plastic SOJ
(SOJ40-P-400-1.27)
(Product : MSM518121A-xxZS)
(Product : MSM518121A-xxJS)
xx indicates speed rank.
PRODUCT FAMILY
MSM518121A-70
MSM518121A-80
MSM518121A-10
Access Time
RAM
70 ns
80 ns
100 ns
SAM
25 ns
25 ns
25 ns
Cycle Time
RAM
140 ns
150 ns
180 ns
SAM
30 ns
30 ns
30 ns
Power Dissipation
Operating
120 mA
110 mA
100 mA
Standby
8 mA
8 mA
8 mA
Family
This version: Jan. 1998
Previous version: Dec. 1996
相關(guān)PDF資料
PDF描述
MSM518121A-80 131,072-Word X 8-Bit Multiport DRAM
MSM518121A-80JS 131,072-Word X 8-Bit Multiport DRAM
MSM518121A-80ZS 131,072-Word X 8-Bit Multiport DRAM
MSM518122 131,072-Word x 8-Bit Multiport DRAM
MSM518128 131,072-Word X 8-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSM518121A-80 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:131,072-Word X 8-Bit Multiport DRAM
MSM518121A-80JS 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:131,072-Word X 8-Bit Multiport DRAM
MSM518121A-80ZS 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:131,072-Word X 8-Bit Multiport DRAM
MSM518122 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:131,072-Word x 8-Bit Multiport DRAM
MSM518122-80JSDR1 制造商:ROHM Semiconductor 功能描述:
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