HYMD512G7268-M Datasheet, PDF (9/16 Pages) Hynix Semiconductor – Registered DDR SDRAM DIMM

HYMD512G726A(L)8-M/K/H/L
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
Parameter
-M(DDR2662-2-2) -K(DDR266A)
Symbol
Min Max Min Max
Row Cycle Time
tRC
60
-
65
-
Auto Refresh Row Cycle Time
tRFC
75
-
75
-
Row Active Time
tRAS
45
120K 45 120K
Active to Read with Auto
Precharge Delay
tRAP
tRCD or
tRP min
-
tRCD or
tRP min
-
Row Address to Column Address
Delay
tRCD
15
-
20
-
Row Active to Row Active Delay tRRD
15
-
15
-
Column Address to Column
Address Delay
tCCD
1
-
1
-
Row Precharge Time
tRP
15
-
20
-
Write Recovery Time
tWR
15
-
15
-
Write to Read Command Delay tWTR
1
-
1
-
Auto Precharge Write Recovery
+ Precharge Time
tDAL
2+(tRP/
tCK)
-
5
-
System Clock
Cycle Time
CL = 2.5
7.5
12
tCK
CL = 2
7.5
12
Clock High Level Width
tCH
0.45
0.55
Clock Low Level Width
tCL
0.45 0.55
Data-Out edge to Clock edge
Skew
tAC -0.75 0.75
DQS-Out edge to Clock edge
Skew
tDQSCK -0.75
0.75
DQS-Out edge to Data-Out edge
Skew
tDQSQ
-
0.5
Data-Out hold time from DQS
tQH
tHPmin
-tQHS
-
Clock Half Period
tHP
tCH/L
min
-
Data Hold Skew Factor
tQHS
-
0.75
Valid Data Output Window
tDV
tQH-tDQSQ
Data-out high-impedance
window from
CK, /CK
tHZ -0.75 0.75
Data-out low-impedance window
from
tLZ
CK,/CK
-0.75 0.75
7.5
12
7.5
12
0.45 0.55
0.45 0.55
-0.75 0.75
-0.75 0.75
-
0.5
tHPmin
-tQHS
-
tCH/L
min
-
-
0.75
tQH-tDQSQ
-0.75 0.75
-0.75 0.75
Input Setup Time (fast slew rate) tIS
0.9
-
0.9
-
Input Hold Time (fast slew rate)
tIH
0.9
-
0.9
-
Input Setup Time (slow slew
rate)
tIS
1.0
-
1.0
-
-H(DDR266B)
Min Max
65
-
75
-
45 120K
tRCD or
tRP min
-
20
-
15
-
1
-
20
-
15
-
1
-
5
-
7.5
12
10
12
0.45 0.55
0.45 0.55
-0.75 0.75
-0.75 0.75
-
0.5
tHPmin
-tQHS
-
tCH/L
min
-
-
0.75
tQH-tDQSQ
-0.75 0.75
-0.75 0.75
0.9
-
0.9
-
1.0
-
-L(DDR200)
Min
Max
70
-
80
-
50
120K
tRCD or
tRP min
-
20
-
15
-
1
-
20
15
1
(tWR/tCK)
+
(tRP/tCK)
8
10
0.45
0.45
-
-
-
-
12
12
0.55
0.55
-0.75 0.75
-0.75 0.75
-
0.6
tHPmin
-tQHS
-
tCH/L
min
-
-
0.75
tQH-tDQSQ
-0.8
0.8
-0.8
0.8
1.1
-
1.1
-
1.1
-
Unit Note
ns
ns
ns
ns 16
ns
ns
CK
ns
ns
CK
CK 15
ns
ns
CK
CK
ns
ns
ns
ns
1,
10
ns 1,9
ns 10
ns
ns
ns
ns
2,3,
5,6
ns
2,3,
5,6
ns
2,4,
5,6
Rev. 0.1/Jan. 2003
9