DRAM(Dynamic Random Access Memory),即动态随机存取存储器,最为常见的系统内存。
几乎所有的 DRAM 作为计算机系统中的离散元器件存在。DRAM 的硅工艺经过显著地定制,因此其无法与 CPU 一起集成。有许多样式的 DRAM 可满足市场的各种需要。双数据速率 DDR 存储器是台式机和服务器计算机中最常见的 DRAM 类型。DDR4 是最新一代的 DDR 存储器。低功率 DDR (LPDDR) 是移动和嵌入式系统首选的存储器技术。还有其他类型的 DRAM。

DRAM 单元只是一个存储电容器和访问晶体管。一个DRAM的存储单元存储的是0还是1取决于电容是否有电荷,有电荷代表1,无电荷代表0。但时间一长,代表1的电容会放电,代表0的电容会吸收电荷,这就是数据丢失的原因;刷新操作定期对电容进行检查,若电量大于满电量的1/2,则认为其代表1,并把电容充满电;若电量小于1/2,则认为其代表0,并把电容放电,藉此来保持数据的连续性。

低、中、高容量DRAM

温度范围
-40℃~125℃

车规级产品

PSC 25nm技术

大部分产品
支持ECC

选型表下载

1.2V DDR4 SDRAM

Part NumberDenOrgTypeVccRefreshSpeed (MT/s)Pkg(Pins)
IS43/IS46QR85120B4G512Mx8DDR41.2V8K2400BGA(78)
IS43/IS46QR16256B256Mx16DDR41.2V8K2400BGA(96)

1.5V DDR3 SDRAM (IS43) & Automotive (IS46)

1.35V DDR3L SDRAM (IS43) & Automotive (IS46)

1 Notes :1. S= Sample 2. Prod=Production3. NR= Not recommended for new design 4. ECC=Error Correcting

1 grade begin with IS43; Automotive grade begin with IS46.6. Each speed option supports slower speed settings as

Part NumberDenOrgTypeVccRefreshSpeed (MT/s)Pkg(Pins)
IS43/IS46TR81280B1G128Mx8DDR31.5V8K186,616,001,333BGA(78)
IS43/IS46TR81280C 128Mx8DDR31.5V8K18,661,600BGA(78)
IS43/IS46TR81280ED128Mx8DDR31.5V8K16,001,333BGA(78)
IS43/IS46TR16640B64Mx16DDR31.5V8K2133,1866,1600,1333BGA(96)
IS43/IS46TR16640C64Mx16DDR31.5V8K213,318,661,600BGA(96)
IS43/IS46TR16640ED64Mx16DDR31.5V8K16,001,333BGA(96)
IS43/IS46TR82560C2G256Mx8DDR31.5V8K186,616,001,333BGA(78)
IS43/IS46TR82560D256Mx8DDR31.5V8K18,661,600BGA(78)
IS43/IS46TR16128C128Mx16DDR31.5V8K186,616,001,333BGA(96)
IS43/IS46TR16128D128Mx16DDR31.5V8K213,318,661,600BGA(96)
IS43/IS46TR85120A4G512Mx8DDR31.5V8K186,616,001,333BGA(78)
IS43/IS46TR85120B512Mx8DDR31.5V8K18,661,600BGA(78)
IS43/IS46TR85120EC512Mx8DDR31.5V8K213,318,661,600BGA(78)
IS43/IS46TR16256A256Mx16DDR31.5V8K2133,1866,1600,1333BGA(96)
IS43/IS46TR16256B256Mx16DDR31.5V8K213,318,661,600BGA(96)
IS43/IS46TR16256EC256Mx16DDR31.5V8K213,318,661,600BGA(96)
IS43/IS46TR81024B 8G1Gx8DDR31.5V8K18,661,600BGA(78)
IS43/IS46TR16512A512Mx16DDR31.5V8K186,616,001,333BGA(96)
IS43/IS46TR16512B512Mx16DDR31.5V8K213,318,661,600BGA(96)
IS43/IS46TR16512S2D512Mx16DDR31.5V8K18,661,600BGA(96)
IS43/IS46TR16K01S2A16G1Gx16DDR31.5V8K18,661,600BGA(96)
Part NumberDenOrgTypeVccRefreshSpeed (MT/s)Pkg(Pins)
IS43/IS46TR81280BL1G128Mx8DDR3L1.35V or 1.5V8K186,616,001,333BGA(78)
IS43/IS46TR81280CL128Mx8DDR3L1.35V or 1.5V8K18,661,600BGA(78)
IS43/IS46TR16640BL64Mx16DDR3L1.35V or 1.5V8K186,616,001,333BGA(96)
IS43/IS46TR16640CL 64Mx16DDR3L1.35V or 1.5V8K18,661,600BGA(96)
IS43/IS46TR82560CL2G256Mx8DDR3L1.35V or 1.5V8K16,001,333BGA(78)
IS43/IS46TR82560DL256Mx8DDR3L1.35V or 1.5V8K18,661,600BGA(78)
IS43/IS46TR16128CL128Mx16DDR3L1.35V or 1.5V8K16,001,333BGA(96)
IS43/IS46TR16128DL128Mx16DDR3L1.35V or 1.5V8K213,318,661,600BGA(96)
IS43/IS46TR85120AL4G512Mx8DDR3L1.35V or 1.5V8K186,616,001,333BGA(78)
IS43/IS46TR85120ECL512Mx8DDR3L1.35V or 1.5V8K18,661,600BGA(78)
IS43/IS46TR85120BL512Mx8DDR3L1.35V or 1.5V8K18,661,600BGA(78)
IS43/IS46TR16256AL256Mx16DDR3L1.35V or 1.5V8K186,616,001,333BGA(96)
IS43/IS46TR16256BL256Mx16DDR3L1.35V or 1.5V8K213,318,661,600BGA(96)
IS43/IS46TR16256ECL256Mx16DDR3L1.35V or 1.5V8K18,661,600BGA(96)

1.35V DDR3L SDRAM (IS43) & Automotive (IS46) contd.

Part NumberDenOrgTypeVccRefreshSpeed (MT/s)Pkg(Pins)
IS43/IS46TR81024BL 8G1Gx8DDR3L1.35Vor 1.5V8K18,661,600BGA(78)
IS43/IS46TR16512AL512Mx16DDR3L1.35Vor 1.5V8K186,616,001,333BGA(96)
IS43/IS46TR16512BL 512Mx16DDR3L1.35Vor 1.5V8K18,661,600BGA(96)
IS43/IS46TR16512S2DL 512Mx16DDR3L1.35Vor 1.5V8K18,661,600BGA(96)
IS43/IS46TR16K01S2AL16G1Gx16DDR3L1.35Vor 1.5V8K18,661,600BGA(96)

1.8V DDR2 SDRAM (IS43) & Automotive (IS46)

Part NumberDenOrgTypeVccRefreshSpeed (MT/s)Pkg(Pins)
IS43/IS46DR16160B256M16Mx16DDR21.8V8K800,667,533,400BGA(84)
IS43/IS46DR32801B8Mx32DDR21.8V8K667,533,400BGA(126)
IS43/IS46DR86400D512M64Mx8DDR21.8V8K800,667,533,400BGA(60)
IS43/IS46DR86400E64Mx8DDR21.8V8K800,667,533,400BGA(60)
IS43/IS46DR16320D32Mx16DDR21.8V8K800,667,533,400BGA(84)
IS43/IS46DR16320E32Mx16DDR21.8V8K800,667,533,400BGA(84)
IS43/IS46DR32160C16Mx32DDR21.8V8K667,533,400BGA(126)
IS43/IS46DR81280C1G128Mx8DDR21.8V8K800,667,533,400BGA(60)
IS43/IS46DR16640C 64Mx16DDR21.8V8K800,667,533,400BGA(84)
IS43/IS46DR16640C2G256Mx8DDR21.8V8K800,667,533,400BGA(60)
IS43/IS46DR16128C128Mx16DDR21.8V8K800,667,533,400BGA(84)

2.5V DDR SDRAM (IS43) & Automotive (IS46)

Part NumberDenOrgTypeVccRefreshSpeed (MHz)Pkg(Pins)
IS43R16800E128M8Mx16DDR2.5V4K200,166,133TSOP2(66),BGA(60)
IS43R32400E4Mx32DDR2.5V4K250,200,166BGA(144)
IS43/IS46R83200F 256M32Mx8DDR2.5V8K200,166,133TSOP2(66)
IS43/IS46R16160F16Mx16DDR2.5V8K200,166,133TSOP2(66),BGA(60)
IS43/IS46R86400E512M64Mx8DDR2.5V8K200,166,133TSOP2(66),BGA(60)
IS43/IS46R86400F64Mx8DDR2.5V8K200,166,133TSOP2(66),BGA(60)
IS43/IS46R16320E32Mx16DDR2.5V8K200,166,133TSOP2(66),BGA(60)
IS43/IS46R16320F32Mx16DDR2.5V8K200,166,133TSOP2(66),BGA(60)

3.3V SDR SDRAM (IS42) & Automotive (IS45)

Part NumberDenOrgTypeVccRefreshSpeedPkg(Pins)
IS42/IS45S16100H16M1Mx16SDR3.3V2K200,166,143TSOP2(50),BGA(60)
IS42/IS45S16400J64M4Mx16SDR3.3V4K200,166,143TSOP2(54),BGA(54),BGA(60)
IS42/IS45S32200L2Mx32SDR3.3V4K200,166,143TSOP2(86),BGA(90)
IS42/IS45S81600F128M16Mx8SDR3.3V4K200,166,143TSOP2(54)
IS42/IS45S16800F8Mx16SDR3.3V4K200,166,143TSOP2(54),BGA(54)
IS42/IS45S32400F4Mx32SDR3.3V4K166,143,133TSOP2(86),BGA(90)
IS42/IS45S16160J256M16Mx16SDR3.3V8K166,143,133TSOP2(54),BGA(54)
IS42/IS45S32800J8Mx32SDR3.3V4K166,143,133TSOP2(86),BGA(90)
IS42/IS45S83200J32Mx8SDR3.3V8K166,143,133TSOP2(54),BGA(54)
IS42S86400F512M64Mx8SDR3.3V8K200, 166,143,133TSOP2(54)
IS42/IS45S16320F32Mx16SDR3.3V8K200, 166,143,133TSOP2(54),BGA(54)
IS42/IS45S32160F16Mx32SDR3.3V8K166,143,133TSOP2(86),BGA(90)

3.3V EDO & Fast Page Mode DRAM

Part No.Den.TypeVccSpeed (MT/s)Pkg.
IS41LV16100D16M1Mx16EDO3.3V1K50SOJ(42),TSOP2(44/50)
IS41LV16105D1Mx16FP3.3V1K50SOJ(42),TSOP2(44/50)

Mobile DRAM

LPDDR4 SDRAM (IS43) & Automotive (IS46)

Part No.Den.TypeVccSpeed (MT/s)Pkg.
IS43/IS46LQ16128A2GLPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ32640A LPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ16256A4GLPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ32128ALPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ32256A8GLPDDR41.1V/1.8V3200BGA(200)

LPDDR4X SDRAM (IS43) & Automotive (IS46)

LPDDR4 SDRAM with ECC (IS43) & Automotive (IS46)

Part No.Den.TypeVccSpeed (MT/s)Pkg.
IS43/IS46LQ16128AL2GLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ32640ALLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ16256AL4GLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ32128ALLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ32256AL8GLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
Part No.Den.TypeVccSpeed (MT/s)Pkg.
IS43/IS46LQ16128EA 2GLPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ32640EALPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ16256EA 4GLPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ32128EALPDDR41.1V/1.8V3200BGA(200)
IS43/IS46LQ32256EA8GLPDDR41.1V/1.8V3200BGA(200)

LPDDR4X SDRAM with ECC (IS43) & Automotive (IS46)

Part No.Den.TypeVccSpeed (MT/s)Pkg.
IS43/IS46LQ16128EAL2GLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ32640EALLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ16256EAL4GLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ32128EALLPDDR4X0.6V/1.1V/1.8V3200BGA(200)
IS43/IS46LQ32256EAL8GLPDDR4X0.6V/1.1V/1.8V3200BGA(200)

PowerSaverTM LPDDR2 SDRAM (IS43) & Automotive (IS46)

Part NumberDenOrgTypeVccRefreshSpeed(MHz)Pkg(Pins)
IS43/IS46LD16160B256M16Mx16LPDDR21.2/2.8V4K533,400,333BGA(134),PoP(168)
IS43/IS46LD32800B8Mx32LPDDR21.2/1.8V4K533,400,333BGA(134),PoP(168)
IS43/IS46LD16320A512M32Mx16LPDDR21.2/1.8V4K533,400,333BGA(134),PoP(168)
IS43/IS46LD32160A16Mx32LPDDR21.2/1.8V4K533,400,333BGA(134),PoP(168)
IS43/IS46LD16640C1G64Mx16LPDDR21.2/1.8V4K533,400,333BGA(134),PoP(168)
IS43/IS46LD32320C32Mx32LPDDR21.2/1.8V4K533,400,333BGA(134),PoP(168)

PowerSaverrTM LPDDR2 SDRAM (IS43) & Automotive (IS46) contd.

Part NumberDenOrgTypeVccRefreshSpeed(MHz)Pkg(Pins)
IS43/IS46LD16128B2G128Mx16LPDDR21.2/1.8V8K533,400,333BGA(134),PoP(168)
IS43/IS46LD32640B64Mx32LPDDR21.2/1.8V8K533,400,333BGA(134),PoP(168)
IS43/IS46LD16256A 4G256Mx16LPDDR21.2/1.8V8K533,400,333PoP(168)
IS43/IS46LD32128A128Mx32LPDDR21.2/1.8V8K533,400,333PoP(168)