Memory IC
| 参数名称 | 属性值 |
| 厂商名称 | FUJITSU(富士通) |
| 零件包装代码 | DIP |
| 包装说明 | , |
| 针数 | 28 |
| Reach Compliance Code | compliant |
| MB81C4251-10P | MB81C4251-12P | MB81C4251-12PSZ | MB81C4251-12PJ | MB81C4251-10PJ | MB81C4251-15PSZ | MB81C4251-15P | MB81C4251-10PSZ | MB81C4251-15PJ | |
|---|---|---|---|---|---|---|---|---|---|
| 描述 | Memory IC | Memory IC | 256KX4 VIDEO DRAM, 120ns, PZIP28, PLASTIC, ZIP-28 | 256KX4 VIDEO DRAM, 120ns, PDSO28, PLASTIC, SOJ-28 | 256KX4 VIDEO DRAM, 100ns, PDSO28, PLASTIC, SOJ-28 | Video DRAM, 256KX4, 150ns, CMOS, PZIP28, PLASTIC, ZIP-28 | Memory IC | Video DRAM, 256KX4, 100ns, CMOS, PZIP28, PLASTIC, ZIP-28 | 256KX4 VIDEO DRAM, 150ns, PDSO28, PLASTIC, SOJ-28 |
| 包装说明 | , | , | ZIP, | SOJ, | SOJ, | ZIP, | , | ZIP, | SOJ, |
| Reach Compliance Code | compliant | compliant | unknown | unknown | unknown | unknown | compliant | unknown | unknow |
| 厂商名称 | FUJITSU(富士通) | - | FUJITSU(富士通) | FUJITSU(富士通) | FUJITSU(富士通) | - | FUJITSU(富士通) | - | FUJITSU(富士通) |
| 零件包装代码 | DIP | DIP | ZIP | SOJ | SOJ | - | DIP | - | SOJ |
| 针数 | 28 | 28 | 28 | 28 | 28 | - | 28 | - | 28 |
| ECCN代码 | - | - | EAR99 | EAR99 | EAR99 | EAR99 | - | EAR99 | EAR99 |
| 访问模式 | - | - | FAST PAGE | FAST PAGE | FAST PAGE | FAST PAGE | - | FAST PAGE | FAST PAGE |
| 最长访问时间 | - | - | 120 ns | 120 ns | 100 ns | 150 ns | - | 100 ns | 150 ns |
| 其他特性 | - | - | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT | - | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT |
| JESD-30 代码 | - | - | R-PZIP-T28 | R-PDSO-J28 | R-PDSO-J28 | R-PZIP-T28 | - | R-PZIP-T28 | R-PDSO-J28 |
| 内存密度 | - | - | 1048576 bit | 1048576 bit | 1048576 bit | 1048576 bit | - | 1048576 bit | 1048576 bi |
| 内存集成电路类型 | - | - | VIDEO DRAM | VIDEO DRAM | VIDEO DRAM | VIDEO DRAM | - | VIDEO DRAM | VIDEO DRAM |
| 内存宽度 | - | - | 4 | 4 | 4 | 4 | - | 4 | 4 |
| 功能数量 | - | - | 1 | 1 | 1 | 1 | - | 1 | 1 |
| 端口数量 | - | - | 2 | 2 | 2 | 2 | - | 2 | 2 |
| 端子数量 | - | - | 28 | 28 | 28 | 28 | - | 28 | 28 |
| 字数 | - | - | 262144 words | 262144 words | 262144 words | 262144 words | - | 262144 words | 262144 words |
| 字数代码 | - | - | 256000 | 256000 | 256000 | 256000 | - | 256000 | 256000 |
| 工作模式 | - | - | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | ASYNCHRONOUS | - | ASYNCHRONOUS | ASYNCHRONOUS |
| 组织 | - | - | 256KX4 | 256KX4 | 256KX4 | 256KX4 | - | 256KX4 | 256KX4 |
| 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 |
| 封装代码 | - | - | ZIP | SOJ | SOJ | ZIP | - | ZIP | SOJ |
| 封装形状 | - | - | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | - | RECTANGULAR | RECTANGULAR |
| 封装形式 | - | - | IN-LINE | SMALL OUTLINE | SMALL OUTLINE | IN-LINE | - | IN-LINE | SMALL OUTLINE |
| 认证状态 | - | - | Not Qualified | Not Qualified | Not Qualified | Not Qualified | - | Not Qualified | Not Qualified |
| 刷新周期 | - | - | 512 | 512 | 512 | 512 | - | 512 | 512 |
| 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 |
| 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 |
| 标称供电电压 (Vsup) | - | - | 5 V | 5 V | 5 V | 5 V | - | 5 V | 5 V |
| 表面贴装 | - | - | NO | YES | YES | NO | - | NO | YES |
| 技术 | - | - | CMOS | CMOS | CMOS | CMOS | - | CMOS | CMOS |
| 端子形式 | - | - | THROUGH-HOLE | J BEND | J BEND | THROUGH-HOLE | - | THROUGH-HOLE | J BEND |
| 端子位置 | - | - | ZIG-ZAG | DUAL | DUAL | ZIG-ZAG | - | ZIG-ZAG | DUAL |
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