hy5ps1g821m Hynix Semiconductor, hy5ps1g821m Datasheet - Page 40
hy5ps1g821m
Manufacturer Part Number
hy5ps1g821m
Description
1gb Ddr2 Sdram
Manufacturer
Hynix Semiconductor
Datasheet
1.HY5PS1G821M.pdf
(79 pages)
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Rev. 0.2 / Oct. 2005
Example 3: Burst Read Operation Followed by Precharge:
RL = 5, AL = 2, CL = 3, BL = 4, t
Example 4: Burst Read Operation Followed by Precharge:
RL = 6, AL = 2, CL = 4, BL = 4, t
CK/CK
CMD
DQS/DQS
DQ’s
CK/CK
CMD
DQS/DQS
DQ’s
Posted CAS
Post CAS
READ A
READ A
T0
T0
AL = 2
AL = 2
T1
T1
NOP
NOP
AL + BL/2 Clks
AL + BL/2 clks
T2
T2
RL =5
RL = 6
NOP
NOP
> = t
> = t
RAS
RAS
RTP
RTP
T3
T3
> = t
NOP
NOP
> = t
<= 2 clocks
<= 2 clocks
CL =3
CL =4
RTP
RTP
Precharge A
Precharge A
T4
T4
> = t
RP
T5
T5
NOP
NOP
DOUT A
> = t
CL =3
0
CL =4
RP
DOUT A
T6
1
T6
NOP
NOP
DOUT A
DOUT A
1HY5PS12421(L)M
0
2
HY5PS12821(L)M
DOUT A
DOUT A
Activate
Activate
T7
T7
1
Bank A
3
Bank A
DOUT A
2
DOUT A
T 8
T 8
3
NOP
NOP
40
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