參數(shù)資料
型號: K4S160822D
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 2Mx8 SDRAM 1M x 8bit x 2 Banks Synchronous DRAM LVTTL
中文描述: 2Mx8 SDRAM的1M × 8位× 2銀行同步DRAM LVTTL
文件頁數(shù): 23/46頁
文件大?。?/td> 1183K
代理商: K4S160822D
K4S160822D
CMOS SDRAM
- 23
Rev. 1.0 (Oct. 1999)
*Note :
1. t
RDL
: 1 CLK
2. t
BDL
: 1 CLK ; Last data in to burst stop delay.
Read or write burst stop command is valid at every burst length.
3. Number of valid output data after row precharge or burst stop : 1, 2 for CAS latency= 2, 3 respectiviely.
4. PRE : Both banks precharge if necessary.
MRS can be issued only at both banks precharge state.
8. Burst Stop & Interrupted by Precharge
D
0
D
1
D
2
CLK
CMD
DQ
WR
PRE
D
3
1) Normal Write (BL=4)
tRDL Note 1
3) Read Interrupted by Precharge (BL=4)
CLK
CMD
DQ(CL2)
DQ(CL3)
RD
PRE
Q
0
Q
1
Q
0
Q
1
1
2
Note 3
9. MRS
CLK
PRE
1) Mode Register Set
D
0
D
1
D
2
CLK
CMD
DQ
WR
STOP
D
3
2) Write Burst Stop (BL=8)
DQM
4) Read Burst Stop (BL=4)
CLK
CMD
DQ(CL2)
DQ(CL3)
RD
STOP
Q
0
Q
1
Q
0
Q
1
1
2
Note 3
MRS
ACT
Note 4
tRP
tMRS = 2CLK
CMD
DQM
tBDL Note 2
D
4
D
5
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