SDRAM從發(fā)展到現(xiàn)在已經(jīng)經(jīng)歷了五代，分別是：第一代SDR SDRAM，第二代DDR SDRAM，第三代DDR2 SDRAM，第四代DDR3 SDRAM，第五代，DDR4 SDRAM。第二，三，四代DDR（Double Data Rate）內(nèi)存則采用數(shù)據(jù)讀寫(xiě)速率作為命名標(biāo)準(zhǔn)，并且在前面加上表示其DDR代數(shù)的符號(hào)，PC-即DDR，PC2=DDR2，PC3=DDR3。如PC2700是DDR333，其工作頻率是333/2=166MHz，2700表示帶寬為2.7G。DDR的讀寫(xiě)頻率從DDR200到DDR400，DDR2從DDR2-400到DDR2-800，DDR3從DDR3-800到DDR3-1600。
ISSI 是Integrated Silicon Solution, Inc.縮寫(xiě)。1988年成立，專門(mén)設(shè)計(jì)、開(kāi)發(fā)、銷售高性能存儲(chǔ)半導(dǎo)體產(chǎn)品，用于Internet存儲(chǔ)器件、網(wǎng)絡(luò)設(shè)備、遠(yuǎn)程通訊和移動(dòng)通訊設(shè)備、計(jì)算機(jī)外設(shè)等。
公司的客戶都是一些電子工業(yè)巨頭，如3Com, Alcatel, Cisco, Ericsson, Hewlett Packard, IBM, Lexmark, Motorola, Nokia, Seagate等公司。ISSI是國(guó)際化大公司，公司總部設(shè)在美國(guó)加州Santa Clara，在美國(guó)、歐洲擁有分公司，在臺(tái)灣有合資企業(yè)，在中國(guó)香港設(shè)有子公司，銷售辦事處分布在美國(guó)、歐洲、香港、中國(guó)、臺(tái)灣、日本。ISSI 用0.25微米工藝技術(shù)生產(chǎn)最新進(jìn)的SRAM產(chǎn)品，產(chǎn)品都是由代工服務(wù)商代為生產(chǎn)，臺(tái)灣的TSMC、UMC、新加坡的Chartered Semiconductor都是它的合作伙伴。
| Density |
Org. |
Part Number |
Type |
Vcc |
Refsh |
Speed |
Pkg(Pins) |
PDF下載 |
| 2Gb |
256Mx8 |
IS43DR82560B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 2Gb |
256Mx8 |
IS43DR82560C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 2Gb |
128Mx16 |
IS43DR16128A |
DDR2 |
1.8V |
8K |
667,533,333 |
BGA(84) |
暫無(wú) |
| 2Gb |
128Mx16 |
IS43DR16128B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 2Gb |
128Mx16 |
IS43DR16128C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 2Gb |
256Mx8 |
IS46DR82560B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 2Gb |
256Mx8 |
IS46DR82560C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 2Gb |
128Mx16 |
IS46DR16128A |
DDR2 |
1.8V |
8K |
667,533,400 |
BGA(84) |
暫無(wú) |
| 2Gb |
128Mx16 |
IS46DR16128B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 2Gb |
128Mx16 |
IS46DR16128C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 1Gb |
128Mx8 |
IS43DR81280B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 1Gb |
128Mx8 |
IS43DR81280C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 1Gb |
64Mx16 |
IS43DR16640B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 1Gb |
64Mx16 |
IS43DR16640C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 1Gb |
128x8 |
IS46DR81280B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 1Gb |
128Mx8 |
IS46DR81280C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 1Gb |
64Mx16 |
IS46DR16640B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 1Gb |
64Mx16 |
IS46DR16640C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 1Gb |
64Mx16 |
IS43DR16640 |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
64Mx8 |
IS43DR86400C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 512Mb |
64Mx8 |
IS43DR86400D |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 512Mb |
64Mx8 |
IS43DR86400E |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS43DR16320C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS43DR16320D |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS43DR16320E |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
16Mx32 |
IS43DR32160C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(126) |
暫無(wú) |
| 512Mb |
64Mx8 |
IS46DR86400C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 512Mb |
64Mx8 |
IS46DR86400D |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 512Mb |
64Mx8 |
IS46DR86400E |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(60) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS46DR16320C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS46DR16320D |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS46DR16320E |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 512Mb |
16Mx32 |
IS46DR32160C |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(126) |
暫無(wú) |
| 512Mb |
32Mx16 |
IS43DR16320 |
DDR2 |
1.8V |
8K |
800,667,533 |
BGA(84) |
暫無(wú) |
| 256Mb |
16Mx16 |
IS43DR16160B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
WBGA(84) |
暫無(wú) |
| 256Mb |
8Mx32 |
IS43DR32801B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(126) |
暫無(wú) |
| 256Mb |
16Mx16 |
IS46DR16160B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
WBGA(84) |
暫無(wú) |
| 256Mb |
8Mx32 |
IS46DR32801B |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(126) |
暫無(wú) |
| 256Mb |
16Mx16 |
IS43DR16160A |
DDR2 |
1.8V |
8K |
800,667,533,400 |
BGA(84) |
暫無(wú) |
| 256Mb |
8Mx32 |
IS43DR32801A |
DDR2 |
1.8V |
8K |
533,400 |
BGA(126) |
暫無(wú) |
| 256Mb |
16Mx16 |
IS46DR16160A |
DDR2 |
1.8V |
8K |
533,400 |
WBGA(84) |
暫無(wú) |
| 256Mb |
8Mx32 |
IS46DR32801A |
DDR2 |
1.8V |
8K |
400 |
BGA(126) |
暫無(wú) |
