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MSM518221-25ZS

产品描述262,214-Word x 8-Bit Field Memory
产品类别存储    存储   
文件大小171KB,共16页
制造商OKI
官网地址http://www.oki.com
下载文档 详细参数 选型对比 全文预览

MSM518221-25ZS概述

262,214-Word x 8-Bit Field Memory

MSM518221-25ZS规格参数

参数名称属性值
厂商名称OKI
零件包装代码ZIP
包装说明ZIP,
针数28
Reach Compliance Codeunknow
其他特性INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH
JESD-30 代码R-PZIP-T28
长度36 mm
内存密度2097152 bi
内存集成电路类型MEMORY CIRCUIT
内存宽度8
功能数量1
端子数量28
字数262144 words
字数代码256000
工作模式SYNCHRONOUS
最高工作温度70 °C
最低工作温度
组织256KX8
输出特性3-STATE
封装主体材料PLASTIC/EPOXY
封装代码ZIP
封装形状RECTANGULAR
封装形式IN-LINE
认证状态Not Qualified
座面最大高度10.16 mm
最大供电电压 (Vsup)5.5 V
最小供电电压 (Vsup)4.5 V
标称供电电压 (Vsup)5 V
表面贴装NO
技术CMOS
温度等级COMMERCIAL
端子形式THROUGH-HOLE
端子节距1.27 mm
端子位置ZIG-ZAG
宽度2.8 mm

文档预览

下载PDF文档
E2L0032-17-Y1
¡ Semiconductor
¡ Semiconductor
MSM518221
262,214-Word
¥
8-Bit Field Memory
This version: Jan. 1998
MSM518221
Previous version: Dec. 1996
DESCRIPTION
The OKI MSM518221 is a high performance 2-Mbit, 256K
¥
8-bit, Field Memory. It is designed for
high-speed serial access applications such as HDTVs, conventional NTSC TVs, VTRs, digital movies
and Multi-media systems. The 2-Mbit capacity fits one field of a conventional NTSC TV screen.
Each of the 8-bit planes has separate serial write and read ports. These employ independent control
clocks to support asynchronous read and write operations. Different clock rates are also supported,
which allow alternate data rates between write and read data streams.
The MSM518221 provides high speed FIFO, First-In First-Out, operation without external refreshing:
it refreshes its DRAM storage cells automatically, so that it appears fully static to the users.
Moreover, fully static type memory cells and decoders for serial access enable the refresh free serial
access operation, so that serial read and/or write control clock can be halted high or low for any
duration as long as the power is on. Internal conflicts of memory access and refreshing operations
are prevented by special arbitration logic.
The MSM518221's function is simple, and similar to a digital delay device whose delay-bit-length is
easily set by reset timing. The delay length, and the number of read delay clocks between write and
read, is determined by externally controlled write and read reset timings.
Additional SRAM serial registers, or line buffers for the initial access of 256
¥
8-bit enable high speed
first-bit-access with no clock delay just after the write or read reset timings.
The MSM518221 is similar in operation and functionality to OKI 1-Mbit Field Memory MSM514221B.
It has a write mask function or input enable function (IE), and read-data skipping function or output
enable function (OE). The differences between write enable (WE) and input enable (IE), and between
read enable (RE) and output enable (OE) are that WE and RE can stop serial write/read address
increments, but IE and OE cannot stop the increment, when write/read clocking is continuously
applied to MSM518221. The input enable (IE) function allows the user to write into selected locations
of the memory only, leaving the rest of the memory contents unchanged. This facilitates data
processing to display a "picture in picture" on a TV screen.
1/16

MSM518221-25ZS相似产品对比

MSM518221-25ZS MSM518221-25JS MSM518221-30GS-K MSM518221-30JS MSM518221-30ZS MSM518221-40GS-K MSM518221-40JS MSM518221-40ZS MSM518221
描述 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory 262,214-Word x 8-Bit Field Memory
厂商名称 OKI OKI OKI OKI OKI OKI - OKI -
零件包装代码 ZIP SOJ SOIC SOJ ZIP SOIC SOJ ZIP -
包装说明 ZIP, SOJ, SOP, SOJ, ZIP, SOP, SOJ, ZIP, -
针数 28 28 28 28 28 28 28 28 -
Reach Compliance Code unknow unknow unknown unknow unknow unknow unknow unknow -
其他特性 INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH - INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH - INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH INTERNAL 512 ROWS X 512 COLUMN X 8 BITS; SELF REFRESH -
JESD-30 代码 R-PZIP-T28 R-PDSO-J28 R-PDSO-G28 R-PDSO-J28 R-PZIP-T28 R-PDSO-G28 R-PDSO-J28 R-PZIP-T28 -
长度 36 mm 18.41 mm 18.5 mm 18.41 mm 36 mm 18.5 mm 18.41 mm 36 mm -
内存密度 2097152 bi 2097152 bi 2097152 bit 2097152 bi 2097152 bi 2097152 bi 2097152 bi 2097152 bi -
内存集成电路类型 MEMORY CIRCUIT MEMORY CIRCUIT MEMORY CIRCUIT MEMORY CIRCUIT MEMORY CIRCUIT MEMORY CIRCUIT MEMORY CIRCUIT MEMORY CIRCUIT -
内存宽度 8 8 8 8 8 8 8 8 -
功能数量 1 1 1 1 1 1 1 1 -
端子数量 28 28 28 28 28 28 28 28 -
字数 262144 words 262144 words 262144 words 262144 words 262144 words 262144 words 262144 words 262144 words -
字数代码 256000 256000 256000 256000 256000 256000 256000 256000 -
工作模式 SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS -
最高工作温度 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C -
组织 256KX8 256KX8 256KX8 256KX8 256KX8 256KX8 256KX8 256KX8 -
输出特性 3-STATE 3-STATE - 3-STATE 3-STATE - 3-STATE 3-STATE -
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY -
封装代码 ZIP SOJ SOP SOJ ZIP SOP SOJ ZIP -
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR -
封装形式 IN-LINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE IN-LINE SMALL OUTLINE SMALL OUTLINE IN-LINE -
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified -
座面最大高度 10.16 mm 3.75 mm 2.5 mm 3.75 mm 10.16 mm 2.5 mm 3.75 mm 10.16 mm -
最大供电电压 (Vsup) 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V -
最小供电电压 (Vsup) 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V -
标称供电电压 (Vsup) 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V -
表面贴装 NO YES YES YES NO YES YES NO -
技术 CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS -
温度等级 COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL -
端子形式 THROUGH-HOLE J BEND GULL WING J BEND THROUGH-HOLE GULL WING J BEND THROUGH-HOLE -
端子节距 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm -
端子位置 ZIG-ZAG DUAL DUAL DUAL ZIG-ZAG DUAL DUAL ZIG-ZAG -
宽度 2.8 mm 10.16 mm 8.8 mm 10.16 mm 2.8 mm 8.8 mm 10.16 mm 2.8 mm -
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