- 您现在的位置：买卖IC网 > PDF目录381697 > DDRSDRAM (SAMSUNG SEMICONDUCTOR CO. LTD.) DDR SDRAM Specification Version 0.61 PDF资料下载
参数资料
| 型号： | DDRSDRAM |
| 厂商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | DDR SDRAM Specification Version 0.61 |
| 中文描述： | DDR SDRAM的规格版本0.61 |
| 文件页数： | 38/49页 |
| 文件大小： | 750K |
| 代理商： | DDRSDRAM |
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
- 38 of 63 -
REV. 0.61 August 9. '99
128Mb DDR SDRAM
Target
ABBREVIATIONS :
H=High Level, L=Low level, X=Don
′
t Care
Note :
1. All entries assume that CKE was High during the preceding clock cycle and the current clock cycle.
2. ILLEGAL to bank in specified state ; function may be legal in the bank indicated by BA, depending on the state of that bank.
3. Must satisfy bus contention, bus turn around and write recovery requirements.
4. NOP to bank precharging or in idle sate. May precharge bank indicated by BA.
5. ILLEGAL if any bank is not idle.
6. Refer to "3.3.11 Read with Auto Precharge" in page 29 for detailed information.
7. Refer to "3.3.12 Write with Auto Precharge" in page 30 for detailed information.
8. CKE Low to High transition will re-enable CK, CK and other inputs asynchronously. A minimum setup time must be satisfied
before issuing any command other than EXIT.
9. Power-Down and Self-Refresh can be entered only from All Bank Idle state.
ILLEGAL = Device operation and/or data integrity are not guaranteed.
Current State
CKE
n-1
CKE
n
CS
RAS
CAS
WE
Add
Action
SELF-
REFRESHING
*8
L
H
H
X
X
X
X
Exit Self-Refresh
L
H
L
H
H
H
X
Exit Self-Refresh
L
H
L
H
H
L
X
ILLEGAL
L
H
L
H
L
X
X
ILLEGAL
L
H
L
L
X
X
X
ILLEGAL
L
L
X
X
X
X
X
NOPeration(Maintain Self-Refresh)
POWER
DOWN
L
H
X
X
X
X
X
Exit Power Down(Idle after
t
PDEX
)
L
L
X
X
X
X
X
NOPeration(Maintain Power Down)
ALL BANKS
IDLE
*9
H
H
X
X
X
X
X
Refer to Function True Table
H
L
L
L
L
H
X
Enter Self-Refresh
H
L
H
X
X
X
X
Enter Power Down
H
L
L
H
H
H
X
Enter Power Down
H
L
L
H
H
L
X
ILLEGAL
H
L
L
H
L
X
X
ILLEGAL
H
L
L
L
X
X
X
ILLEGAL
L
X
X
X
X
X
X
Refer to Current State=Power Down
ANY STATE
other than
listed above
H
H
X
X
X
X
X
Refer to Function Truth Table
Table 9-5. Functional truth table
相关PDF资料 |
PDF描述 |
|---|---|
| DDTA113TCA-7-F | PNP PRE-BIASED SMALL SIGNAL SOT-23 SURFACE MOUNT TRANSISTOR |
| DDTA114TCA-7-F | PNP PRE-BIASED SMALL SIGNAL SOT-23 SURFACE MOUNT TRANSISTOR |
| DDTA115TCA-7-F | PNP PRE-BIASED SMALL SIGNAL SOT-23 SURFACE MOUNT TRANSISTOR |
| DDTA123TCA-7-F | PNP PRE-BIASED SMALL SIGNAL SOT-23 SURFACE MOUNT TRANSISTOR |
| DDTA124TCA-7-F | PNP PRE-BIASED SMALL SIGNAL SOT-23 SURFACE MOUNT TRANSISTOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DDRSDRAM1111 | 制造商:SAMSUNG 制造商全称:Samsung semiconductor 功能描述:DDR SDRAM Specification Version 1.0 |
| DDR-SJE-Q2 | 制造商:DOMINANT 制造商全称:DOMINANT Semiconductors 功能描述:LED Colored Resin |
| DDR-SJE-Q2R-1 | 制造商:DOMINANT 制造商全称:DOMINANT Semiconductors 功能描述:LED Colored Resin |
| DDR-SJE-R1 | 制造商:DOMINANT 制造商全称:DOMINANT Semiconductors 功能描述:LED Colored Resin |
| DDR-SJE-R2 | 制造商:DOMINANT 制造商全称:DOMINANT Semiconductors 功能描述:LED Colored Resin |
发布紧急采购，3分钟左右您将得到回复。