参数资料
型号: HY5PS1G421LM-C4
厂商: HYNIX SEMICONDUCTOR INC
元件分类: DRAM
英文描述: 1Gb DDR2 SDRAM(DDP)
中文描述: 256M X 4 DDR DRAM, 0.5 ns, PBGA63
封装: FBGA-63
文件页数: 40/79页
文件大小: 1109K
代理商: HY5PS1G421LM-C4
Rev. 0.2 / Oct. 2005
40
1
HY5PS12421(L)M
HY5PS12821(L)M
Example 3: Burst Read Operation Followed by Precharge:
RL = 5, AL = 2, CL = 3, BL = 4, t
RTP
<= 2 clocks
Example 4: Burst Read Operation Followed by Precharge:
RL = 6, AL = 2, CL = 4, BL = 4, t
RTP
<= 2 clocks
CMD
NOP
NOP
NOP
NOP
DQ’s
Precharge A
CK/CK
DOUT A
0
DOUT A
1
DOUT A
2
DOUT A
3
READ A
Posted CAS
AL = 2
CL =3
RL =5
DQS/DQS
Activate
Bank A
> = t
RP
NOP
CL =3
NOP
> = t
RAS
T0
T2
T1
T3
T4
T5
T6
T7
T 8
AL + BL/2 clks
> = t
RTP
CMD
NOP
NOP
NOP
NOP
DQ’s
Precharge A
CK/CK
DOUT A
0
DOUT A
1
DOUT A
2
DOUT A
3
READ A
Post CAS
AL = 2
CL =4
RL = 6
DQS/DQS
Activate
Bank A
> = t
RP
NOP
CL =4
NOP
> = t
RAS
T0
T2
T1
T3
T4
T5
T6
T7
T 8
AL + BL/2 Clks
> = t
RTP
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