K4Y50164UC Datasheet, PDF (65/76 Pages) Samsung semiconductor – 512Mbit XDR TM DRAM(C-die)

K4Y50164UC
K4Y50084UC
K4Y50044UC
K4Y50024UC
XDR^TM DRAM
CFM
CFMN
t_DOFF,MAX
t_DOFF,MIN
Figure 59 : DRSL DQ Receive Waveforms
t_CYCLE
...
i = {0,1,2,3,4,5,...15}
j = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
DQ0
t_DOFF,DQ0
DQN0
DQi
t_DOFF,DQi
DQNi
[(j)/8]•t_CYCLE
t_S,DQ
t_H,DQ
0
1
2
3
4
5
6 ^...
j
... _{14 15}
t_IR,DQ
[(j)/8]•t_CYCLE
t_IF,DQ
t_S,DQ
t_H,DQ
0
1
2
3
4
5
6 ^...
j
... _{14 15}
t_IR,DQ
t_IF,DQ
t_DOFF,DQ15
DQ15
0
DQN15
[(j)/8]•t_CYCLE
12345
t_IR,DQ
t_IF,DQ
t_S,DQ
t_H,DQ
6 ^...
j
... _{14 15}
logic 1
V_IH,DQ
80%
20%
V_IL,DQ
logic 0
logic 1
V_IH,DQ
80%
20%
V_IL,DQ
logic 0
logic 1
V_IH,DQ
80%
20%
V_IL,DQ
logic 0
65 of 76
Rev. 1.1 August 2006