品牌是'IDT' (6623)
对比 | 图片 | 产品型号 | 品牌 | 数据表 | 库存 | 价格(含增值税) | 数量 | Rohs | 工厂交货时间 | 底架 | 包装/外壳 | 表面安装 | 引脚数 | Current - Supply (Nom) | 包装 | 已出版 | JESD-609代码 | 无铅代码 | 零件状态 | 湿度敏感性等级(MSL) | 终止次数 | ECCN 代码 | 端子表面处理 | 最高工作温度 | 最小工作温度 | 附加功能 | HTS代码 | 电压 - 供电 | 端子位置 | 终端形式 | 峰值回流焊温度(摄氏度) | 功能数量 | 端子间距 | Reach合规守则 | 频率 | 时间@峰值回流温度-最大值(s) | JESD-30代码 | 资历状况 | 电源 | 温度等级 | 界面 | 内存大小 | 端口的数量 | 操作模式 | 时钟频率 | 电源电流-最大值 | 访问时间 | 组织结构 | 输出特性 | 内存宽度 | 地址总线宽度 | 密度 | 待机电流-最大值 | 记忆密度 | 访问时间(最大) | I/O类型 | 同步/异步 | 字长 | 待机电压-最小值 | 电压 - 供电 (最大值) | 电压 - 供电 (最小值) | 输出启用 | 座位高度(最大) | 长度 | 宽度 | 器件厚度 | 辐射硬化 | RoHS状态 | 无铅 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | 71V3577S80BGG | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | BGA | 119 | 200mA | 100MHz | RAM, SDR, SRAM | 2005 | e1 | yes | 活跃 | 3 (168 Hours) | 119 | Tin/Silver/Copper (Sn/Ag/Cu) | 70°C | 0°C | 流线型结构 | 3.3V | BOTTOM | BALL | 260 | 1 | 100MHz | 30 | COMMERCIAL | Parallel | 512kB | 1 | 8 ns | 3-STATE | 17b | 4.5 Mb | 0.03A | COMMON | Synchronous | 36b | 3.465V | 3.135V | 2.36mm | 14mm | 22mm | 2.15mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||
![]() | 71024S15YGI8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | 32 | 155mA | RAM, SDR, SRAM - Asynchronous | 2013 | e3 | yes | 活跃 | 3 (168 Hours) | 32 | Matte Tin (Sn) - annealed | 85°C | -40°C | 5V | DUAL | J BEND | 260 | 1 | 5V | INDUSTRIAL | Parallel | 128kB | 1 | 15 ns | 3-STATE | 17b | 1 Mb | COMMON | Asynchronous | 8b | 5.5V | 4.5V | 3.683mm | 20.9mm | 10.2mm | 2.2mm | 无 | 符合RoHS标准 | 无铅 | |||||||||||||||||||||||||
![]() | 71V3579S75PFG8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 12 Weeks | 表面贴装 | TQFP | 100 | 255mA | 117MHz | RAM, SDR, SRAM | 2009 | e3 | yes | 活跃 | 3 (168 Hours) | 100 | Matte Tin (Sn) - annealed | 70°C | 0°C | FLOW-THROUGH ARCHITECTURE | 3.3V | QUAD | 鸥翼 | 260 | 1 | 0.65mm | 117MHz | 30 | COMMERCIAL | Parallel | 512kB | 1 | 7.5 ns | 3-STATE | 18b | 4.5 Mb | 0.03A | COMMON | Synchronous | 18b | 3.465V | 3.135V | 20mm | 14mm | 1.4mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||
![]() | 71024S20TYG | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | 32 | 140mA | RAM, SDR, SRAM - Asynchronous | 2013 | e3 | yes | 活跃 | 3 (168 Hours) | 32 | Matte Tin (Sn) - annealed | 70°C | 0°C | 5V | DUAL | J BEND | 260 | 1 | 5V | COMMERCIAL | Parallel | 128kB | 1 | 20 ns | 3-STATE | 17b | 1 Mb | COMMON | Asynchronous | 8b | 5.5V | 4.5V | 3.759mm | 21.95mm | 7.6mm | 2.67mm | 无 | 符合RoHS标准 | 无铅 | |||||||||||||||||||||||||
![]() | 71024S20YGI8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | 32 | 140mA | RAM, SDR, SRAM - Asynchronous | 2013 | e3 | yes | 活跃 | 3 (168 Hours) | 32 | Matte Tin (Sn) - annealed | 85°C | -40°C | 5V | DUAL | J BEND | 260 | 1 | 5V | INDUSTRIAL | Parallel | 128kB | 1 | 20 ns | 3-STATE | 17b | 1 Mb | COMMON | Asynchronous | 8b | 5.5V | 4.5V | 3.683mm | 20.9mm | 10.2mm | 2.2mm | 无 | 符合RoHS标准 | 无铅 | |||||||||||||||||||||||||
![]() | IDT71V124SA15Y | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | YES | 32 | RAM, SRAM - Asynchronous | 2007 | e0 | 3 (168 Hours) | 32 | 3A991.B.2.B | Tin/Lead (Sn85Pb15) | 70°C | 0°C | 3.3V | DUAL | J BEND | 225 | 1 | 1.27mm | not_compliant | 30 | 不合格 | 3.3V | COMMERCIAL | Parallel | 0.1mA | 128KX8 | 3-STATE | 8 | 0.01A | 1048576 bit | 15 ns | COMMON | 3V | 3.6V | 3V | 3.683mm | 20.955mm | 10.16mm | Non-RoHS Compliant | |||||||||||||||||||||||||||
![]() | 71V65703S85BQ8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | YES | 165 | RAM, SRAM | Tape & Reel | 2009 | e0 | no | 活跃 | 3 (168 Hours) | 165 | 锡铅 | 70°C | 0°C | 3.3V | BOTTOM | BALL | 225 | 20 | COMMERCIAL | Parallel | 1 | 90MHz | 0.225mA | 256KX36 | 3-STATE | 18b | 9 Mb | 0.04A | 8.5 ns | COMMON | 15mm | 13mm | 1.2mm | 无 | 符合RoHS标准 | 含铅 | ||||||||||||||||||||||||||||
![]() | IDT71V547S100PF | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | LQFP | YES | 100 | RAM, SRAM | 2015 | e0 | 3 (168 Hours) | 100 | 3A991.B.2.A | Tin/Lead (Sn85Pb15) | 70°C | 0°C | FLOW-THROUGH ARCHITECTURE | 8542.32.00.41 | 3.3V | QUAD | 鸥翼 | 240 | 1 | 0.65mm | not_compliant | 20 | R-PQFP-G100 | 不合格 | 3.3V | COMMERCIAL | Parallel | SYNCHRONOUS | 66MHz | 0.2mA | 128KX36 | 3-STATE | 36 | 0.04A | 4718592 bit | 10 ns | COMMON | 3.14V | 3.465V | 3.135V | 1.6mm | 20mm | 14mm | Non-RoHS Compliant | |||||||||||||||||||||
![]() | IDT71V632S7PF | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | LQFP | YES | 100 | RAM, SRAM | 2015 | e0 | 3 (168 Hours) | 100 | 3A991.B.2.A | Tin/Lead (Sn85Pb15) | 70°C | 0°C | 流水线结构 | 8542.32.00.41 | 3.3V | QUAD | 鸥翼 | 240 | 1 | 0.65mm | not_compliant | 20 | R-PQFP-G100 | 不合格 | 3.3V | COMMERCIAL | Parallel | 1 | SYNCHRONOUS | 66MHz | 0.16mA | 64KX32 | 3-STATE | 32 | 0.015A | 2097152 bit | 7 ns | COMMON | 3.14V | 3.63V | 3.135V | YES | 1.6mm | 20mm | 14mm | Non-RoHS Compliant | |||||||||||||||||||
![]() | 71V3556SA100BQI8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 11 Weeks | 表面贴装 | 165 | 255mA | RAM, SRAM | Tape & Reel | 2015 | e0 | no | 活跃 | 3 (168 Hours) | 165 | Tin/Lead (Sn63Pb37) | 85°C | -40°C | 3.3V | BOTTOM | BALL | 225 | 100MHz | 20 | INDUSTRIAL | Parallel | 1 | 5 ns | 3-STATE | 17b | 4.5 Mb | 0.045A | COMMON | Synchronous | 36b | 3.465V | 3.135V | 15mm | 13mm | 1.2mm | 无 | 符合RoHS标准 | 含铅 | |||||||||||||||||||||||||
![]() | 71V016SA12PHG8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 12 Weeks | 表面贴装 | TSOP | 44 | 150mA | RAM, SDR, SRAM - Asynchronous | Tape & Reel | 2009 | e3 | yes | 活跃 | 3 (168 Hours) | 44 | Matte Tin (Sn) - annealed | 70°C | 0°C | 3.3V | DUAL | 鸥翼 | 260 | 1 | 0.8mm | 30 | COMMERCIAL | Parallel | 128kB | 1 | 12 ns | 3-STATE | 16b | 1 Mb | COMMON | Asynchronous | 16b | 3V | 3.6V | 3V | 18.41mm | 10.16mm | 1mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||||
![]() | 7006L20J | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | PLCC | 68 | 240mA | RAM, SDR, SRAM | 2008 | e0 | no | 活跃 | 1 (Unlimited) | 68 | EAR99 | Tin/Lead (Sn85Pb15) | 70°C | 0°C | INTERRUPT FLAG; SEMAPHORE; AUTOMATIC POWER-DOWN | 5V | QUAD | J BEND | 225 | 1 | 5V | COMMERCIAL | Parallel | 16kB | 2 | 20 ns | 16KX8 | 3-STATE | 26b | 128 kb | 0.0015A | COMMON | Asynchronous | 8b | 2V | 5.5V | 4.5V | 24mm | 24mm | 3.63mm | 无 | 符合RoHS标准 | 含铅 | ||||||||||||||||||||
![]() | IDT71V546S100PF | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | LQFP | YES | 100 | RAM, SRAM | 2007 | e0 | no | 3 (168 Hours) | 100 | 3A991.B.2.A | Tin/Lead (Sn85Pb15) | 70°C | 0°C | 流水线结构 | 8542.32.00.41 | 3.3V | QUAD | 鸥翼 | 240 | 1 | 0.65mm | 100MHz | 20 | R-PQFP-G100 | 不合格 | 3.3V | COMMERCIAL | Parallel | SYNCHRONOUS | 0.25mA | 128KX36 | 3-STATE | 36 | 0.04A | 4718592 bit | 5 ns | COMMON | 3.14V | 3.465V | 3.135V | 1.6mm | 20mm | 14mm | 符合RoHS标准 | |||||||||||||||||||||
![]() | 71V3577S75BGI8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | BGA | 119 | RAM, SRAM | Tape & Reel | 2009 | e0 | no | 活跃 | 3 (168 Hours) | 119 | Tin/Lead (Sn63Pb37) | 85°C | -40°C | FLOW-THROUGH ARCHITECTURE | 3.3V | BOTTOM | BALL | 225 | 1 | 117MHz | 20 | INDUSTRIAL | Parallel | 1 | 7.5 ns | 17b | 4.5 Mb | Synchronous | 36b | 3.465V | 3.135V | 2.36mm | 14mm | 22mm | 2.15mm | 无 | 符合RoHS标准 | 含铅 | |||||||||||||||||||||||||
![]() | 71V3556SA133BQ | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 11 Weeks | 表面贴装 | 165 | 300mA | 133MHz | RAM, SDR, SRAM | 2013 | e0 | no | 活跃 | 3 (168 Hours) | 165 | Tin/Lead (Sn63Pb37) | 70°C | 0°C | 3.3V | BOTTOM | BALL | 225 | 1 | 133MHz | 20 | COMMERCIAL | Parallel | 512kB | 1 | 4.2 ns | 3-STATE | 17b | 4.5 Mb | 0.04A | COMMON | Synchronous | 36b | 3.465V | 3.135V | 15mm | 13mm | 1.2mm | 无 | 符合RoHS标准 | 含铅 | |||||||||||||||||||||||
![]() | IDT71V632S6PF | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | LQFP | YES | 100 | RAM, SRAM | 2012 | e0 | 3 (168 Hours) | 100 | 3A991.B.2.A | Tin/Lead (Sn85Pb15) | 70°C | 0°C | 流水线结构 | 8542.32.00.41 | 3.3V | QUAD | 鸥翼 | 240 | 1 | 0.65mm | not_compliant | 20 | R-PQFP-G100 | 不合格 | 3.3V | COMMERCIAL | Parallel | 1 | SYNCHRONOUS | 83MHz | 0.18mA | 64KX32 | 3-STATE | 32 | 0.015A | 2097152 bit | 6 ns | COMMON | 3.14V | 3.63V | 3.135V | YES | 1.6mm | 20mm | 14mm | Non-RoHS Compliant | |||||||||||||||||||
![]() | 71V416S10BE | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 12 Weeks | 表面贴装 | TFBGA | 48 | 200mA | RAM, SDR, SRAM - Asynchronous | 2013 | e0 | no | 活跃 | 4 (72 Hours) | 48 | Tin/Lead (Sn63Pb37) | 70°C | 0°C | 3.3V | BOTTOM | BALL | 225 | 1 | 0.75mm | 20 | INDUSTRIAL | Parallel | 512kB | 1 | 10 ns | 3-STATE | 18b | 4 Mb | 0.02A | COMMON | Asynchronous | 16b | 3V | 3.6V | 3V | 9mm | 9mm | 1.2mm | 无 | 符合RoHS标准 | 含铅 | ||||||||||||||||||||||
![]() | 71T75802S200PFGI | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 8 Weeks | 表面贴装 | TQFP | 100 | 295mA | 200MHz | RAM, SDR, SRAM | 2012 | e3 | yes | 活跃 | 3 (168 Hours) | 100 | Matte Tin (Sn) - annealed | 85°C | -40°C | 流水线结构 | 2.5V | QUAD | 鸥翼 | 260 | 1 | 0.65mm | 200MHz | 30 | INDUSTRIAL | Parallel | 2.3MB | 1 | 3.2 ns | 3-STATE | 20b | 18 Mb | COMMON | Synchronous | 18b | 2.38V | 2.625V | 2.375V | 20mm | 14mm | 1.4mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||
![]() | 71V67703S85BQGI8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | 表面贴装 | 165 | 210mA | RAM, SRAM | Tape & Reel | 2009 | e1 | yes | 活跃 | 3 (168 Hours) | 165 | Tin/Silver/Copper (Sn/Ag/Cu) | 85°C | -40°C | FLOW-THROUGH ARCHITECTURE | 3.3V | BOTTOM | BALL | 260 | 1 | 87MHz | 30 | INDUSTRIAL | Parallel | 1 | 8.5 ns | 256KX36 | 3-STATE | 18b | 9 Mb | 0.07A | COMMON | Synchronous | 36b | 3.465V | 3.135V | 15mm | 13mm | 1.2mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||||
![]() | IDT71V424S12Y | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | YES | 36 | RAM, SRAM - Asynchronous | 2009 | e0 | no | 3 (168 Hours) | 36 | 3A991.B.2.A | Tin/Lead (Sn85Pb15) | 70°C | 0°C | 8542.32.00.41 | 3.3V | DUAL | J BEND | 225 | 1 | 1.27mm | 30 | 不合格 | 3.3V | COMMERCIAL | Parallel | 1 | 0.17mA | 512KX8 | 3-STATE | 8 | 0.02A | 4194304 bit | 12 ns | COMMON | 3V | 3.6V | 3V | YES | 3.683mm | 23.495mm | 10.16mm | 符合RoHS标准 | ||||||||||||||||||||||||
![]() | 71V416L15BEG | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 12 Weeks | 表面贴装 | TFBGA | 48 | 160mA | RAM, SDR, SRAM - Asynchronous | 2012 | e1 | yes | 活跃 | 3 (168 Hours) | 48 | Tin/Silver/Copper (Sn/Ag/Cu) | 70°C | 0°C | 3.3V | BOTTOM | BALL | 260 | 1 | 0.75mm | INDUSTRIAL | Parallel | 512kB | 1 | 15 ns | 3-STATE | 18b | 4 Mb | COMMON | Asynchronous | 16b | 3V | 3.6V | 3V | 9mm | 9mm | 1.2mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||||||
![]() | 70V3569S5BF | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | YES | 208 | RAM, SDR, SRAM | 2008 | e0 | no | 活跃 | 3 (168 Hours) | 208 | Tin/Lead (Sn63Pb37) | 70°C | 0°C | PIPELINED OUTPUT MODE, SELF TIMED WRITE CYCLE | 3.3V | BOTTOM | BALL | 225 | 1 | 0.8mm | 20 | COMMERCIAL | Parallel | 72kB | 2 | 100MHz | 0.36mA | 10 ns | 16KX36 | 3-STATE | 28b | 576 kb | 0.015A | COMMON | 3.45V | 3.15V | 15mm | 15mm | 1.4mm | 无 | 符合RoHS标准 | 含铅 | |||||||||||||||||||||||
![]() | IDT71V124SA15PHI | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | SOIC | YES | 32 | RAM, SRAM - Asynchronous | 2007 | e0 | no | 3 (168 Hours) | 32 | 3A991.B.2.B | Tin/Lead (Sn85Pb15) | 85°C | -40°C | 8542.32.00.41 | 3.3V | DUAL | 鸥翼 | 225 | 1 | 1.27mm | not_compliant | 30 | R-PDSO-G32 | 不合格 | 3.3V | INDUSTRIAL | Parallel | 0.12mA | 128KX8 | 3-STATE | 8 | 0.01A | 1048576 bit | 15 ns | COMMON | 3V | 3.6V | 3.15V | 1.2mm | 20.95mm | 10.16mm | Non-RoHS Compliant | |||||||||||||||||||||||
![]() | 71V3577S80PFG | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 12 Weeks | 表面贴装 | TQFP | 100 | 200mA | 100MHz | RAM, SDR, SRAM | 2005 | e3 | yes | 活跃 | 3 (168 Hours) | 100 | Matte Tin (Sn) - annealed | 70°C | 0°C | 流线型结构 | 3.3V | QUAD | 鸥翼 | 260 | 1 | 0.65mm | 100MHz | 30 | COMMERCIAL | Parallel | 512kB | 1 | 8 ns | 3-STATE | 17b | 4.5 Mb | 0.03A | COMMON | Synchronous | 36b | 3.465V | 3.135V | 20mm | 14mm | 1.4mm | 无 | 符合RoHS标准 | 无铅 | ||||||||||||||||||||
![]() | 7006L20JGI8 | Integrated Device Technology (IDT) | 数据表 | N/A | - | 最小起订量: 1 最小包装量: 1 | 7 Weeks | PLCC | YES | 68 | RAM, SDR, SRAM | 2009 | e3 | yes | 活跃 | 1 (Unlimited) | 68 | EAR99 | Matte Tin (Sn) - annealed | 85°C | -40°C | 5V | QUAD | J BEND | 260 | 1 | 5V | INDUSTRIAL | Parallel | 16kB | 2 | 20 ns | 16KX8 | 3-STATE | 28b | 128 kb | 0.004A | COMMON | 2V | 5.5V | 4.5V | 24mm | 24mm | 3.63mm | 无 | 符合RoHS标准 | 无铅 |
71V3577S80BGG
Integrated Device Technology (IDT)
分类:Memory
71024S15YGI8
Integrated Device Technology (IDT)
分类:Memory
71V3579S75PFG8
Integrated Device Technology (IDT)
分类:Memory
71024S20TYG
Integrated Device Technology (IDT)
分类:Memory
71024S20YGI8
Integrated Device Technology (IDT)
分类:Memory
IDT71V124SA15Y
Integrated Device Technology (IDT)
分类:Memory
71V65703S85BQ8
Integrated Device Technology (IDT)
分类:Memory
IDT71V547S100PF
Integrated Device Technology (IDT)
分类:Memory
IDT71V632S7PF
Integrated Device Technology (IDT)
分类:Memory
71V3556SA100BQI8
Integrated Device Technology (IDT)
分类:Memory
71V016SA12PHG8
Integrated Device Technology (IDT)
分类:Memory
7006L20J
Integrated Device Technology (IDT)
分类:Memory
IDT71V546S100PF
Integrated Device Technology (IDT)
分类:Memory
71V3577S75BGI8
Integrated Device Technology (IDT)
分类:Memory
71V3556SA133BQ
Integrated Device Technology (IDT)
分类:Memory
IDT71V632S6PF
Integrated Device Technology (IDT)
分类:Memory
71V416S10BE
Integrated Device Technology (IDT)
分类:Memory
71T75802S200PFGI
Integrated Device Technology (IDT)
分类:Memory
71V67703S85BQGI8
Integrated Device Technology (IDT)
分类:Memory
IDT71V424S12Y
Integrated Device Technology (IDT)
分类:Memory
71V416L15BEG
Integrated Device Technology (IDT)
分类:Memory
70V3569S5BF
Integrated Device Technology (IDT)
分类:Memory
IDT71V124SA15PHI
Integrated Device Technology (IDT)
分类:Memory
71V3577S80PFG
Integrated Device Technology (IDT)
分类:Memory
7006L20JGI8
Integrated Device Technology (IDT)
分类:Memory
