- 您现在的位置：买卖IC网 > PDF目录370033 > 256MBDDRSDRAM (SAMSUNG SEMICONDUCTOR CO. LTD.) DDR SDRAM Specification Version 0.3 PDF资料下载
参数资料
| 型号： | 256MBDDRSDRAM |
| 厂商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | DDR SDRAM Specification Version 0.3 |
| 中文描述： | DDR SDRAM的规格版本0.3 |
| 文件页数： | 38/51页 |
| 文件大小： | 658K |
| 代理商： | 256MBDDRSDRAM |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页当前第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页
- 38 -
REV. 0.3 November 2. 2000
256Mb DDR SDRAM
7.2 DDR SDRAM SPEC Items and Test Conditions
Preliminary
Typical case: VDD = 2.5V, T = 25’C
Worst case : VDD = 2.7V, T = 10’C
Conditions
Operating current - One bank Active-Precharge;
tRC=tRCmin;tCK=100Mhz for DDR200, 133Mhz for DDR266A & DDR266B;
DQ,DM and DQS inputs changing twice per clock cycle;
address and control inputs changing once per clock cycle
Operating current - One bank operation ;
One bank open, BL=4, Reads
- Refer to the following page for detailed test condition
Percharge power-down standby current;
All banks idle; power - down mode;
CKE = <VIL(max); tCK=100Mhz for DDR200, 133Mhz for DDR266A & DDR266B;
Vin = Vref for DQ,DQS and DM
Precharge Floating standby current;
CS# > =VIH(min);All banks idle;
CKE > = VIH(min); tCK=100Mhz for DDR200, 133Mhz for DDR266A & DDR266B;
Address and other control inputs changing once per clock cycle;
Vin = Vref for DQ,DQS and DM
Precharge Quiet standby current;
CS# > = VIH(min); All banks idle;
CKE > = VIH(min); tCK = 100Mhz for DDR200, 133Mhz for DDR266A & DDR266B;
Address and other control inputs stable with keeping >= VIH(min) or =<VIL(max);
Vin = Vref for DQ ,DQS and DM
Active power - down standby current ;
one bank active; power-down mode;
CKE=< VIL (max); tCK = 100Mhz for DDR200, 133Mhz for DDR266A & DDR266B;
Vin = Vref for DQ,DQS and DM
Active standby current;
CS# >= VIH(min); CKE>=VIH(min);
one bank active; active - precharge; tRC=tRASmax; tCK = 100Mhz for DDR200,
133Mhz for DDR266A & DDR266B; DQ, DQS and DM inputs changing twice
per clock cycle; address and other control inputs changing once
per clock cycle
Operating current - burst read;
Burst length = 2; reads; continguous burst;
One bank active; address and control inputs changing once per clock cycle;
CL=2 at tCK = 100Mhz for DDR200, CL=2 at tCK = 133Mhz for DDR266A, CL=2.5 at tCK =
133Mhz for DDR266B ; 50% of data changing at every burst; lout = 0 m A
Operating current - burst write;
Burst length = 2; writes; continuous burst;
One bank active address and control inputs changing once per clock cycle;
CL=2 at tCK = 100Mhz for DDR200, CL=2 at tCK = 133Mhz for DDR266A,
CL=2.5 at tCK = 133Mhz for DDR266B ; DQ, DM and DQS inputs changing twice
per clock cycle, 50% of input data changing at every burst
Auto refresh current;
tRC = tRFC(min) - 8*tCK for DDR200 at 100Mhz,
10*tCK for DDR266A & DDR266B at 133Mhz; distributed refresh
Self refresh current;
CKE =< 0.2V; External clock should be on;
tCK = 100Mhz for DDR200, 133Mhz for DDR266A & DDR266B
Orerating current - Four bank operation ;
Four bank interleaving with BL=4
-Refer to the following page for detailed test condition
Symbol
IDD0
Typical
-
Worst
-
IDD1
-
-
IDD2P
-
-
IDD2F
-
-
IDD2Q
-
-
IDD3P
-
-
IDD3N
-
-
IDD4R
-
-
IDD4W
-
-
IDD5
-
-
IDD6
-
-
IDD7
-
-
Table 12. DDR SDRAM spec Items and Test Conditions
相关PDF资料 |
PDF描述 |
|---|---|
| 25AV5-GA | FOR TV HORIZONTAL-DEFLECTION AMPLIFIER APPLICATIONS |
| 25CV100BE | Surface Mount Type Miniature, Super low profile 3.9mm height |
| 25CV10BE | Surface Mount Type Miniature, Super low profile 3.9mm height |
| 25CV68BE | Surface Mount Type Miniature, Super low profile 3.9mm height |
| 25CV22BE | Surface Mount Type Miniature, Super low profile 3.9mm height |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 256MB-FD | 制造商:PNY Technologies 功能描述:256MB USB, FOR IBM - Bulk |
| 256MB-FLASH | 制造商:STMicroelectronics 功能描述: |
| 256ME-250K | 制造商:ILLINOISCAPACITOR 制造商全称:Illinois Capacitor, Inc. 功能描述:Metallized Polyester Motor Run/AC Film Capacitors In Boxes |
| 256ME-350K | 制造商:ILLINOISCAPACITOR 制造商全称:Illinois Capacitor, Inc. 功能描述:Metallized Polyester Motor Run/AC Film Capacitors In Boxes |
| 256ME-400K | 制造商:ILLINOISCAPACITOR 制造商全称:Illinois Capacitor, Inc. 功能描述:Metallized Polyester Motor Run/AC Film Capacitors In Boxes |
发布紧急采购，3分钟左右您将得到回复。