HYMD512G726B4-M Datasheet, PDF (9/16 Pages) Hynix Semiconductor – Low Profile Registered DDR SDRAM DIMM

HYMD512G726B(L)4M-M/K/H/L
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
Bin Sort :M(DDR266(2-2-2),K(DDR266A@CL=2) H(DDR266B@CL=2.5),L(DDR200@CL=2)
Parameter
Symbol
-M
Min Max
-K
Min Max
H
Min Max
-L
Unit Note
Min Max
Row Cycle Time
tRC
60
-
65
-
65
-
70
- ns
Auto Refresh Row Cycle Time
tRFC
75
-
75
-
75
-
80
- ns
Row Active Time
tRAS
45
120K
45
120K
45
120K
50
120K ns
Active to Read with Auto Precharge
Delay
tRAP
tRCD or
tRPmin
-
tRCD or
tRPmin
-
tRCD or
tRPmin
-
tRCD or
tRPmin
- ns
16
Row Address to Column Address
Delay
tRCD
15
-
20
-
20
-
20
- ns
Row Active to Row Active Delay
tRRD
15
-
15
-
15
-
15
- ns
Column Address to Column Address
Delay
tCCD
1
-
1
-
1
-
1
- CK
Row Precharge Time
tRP
15
-
20
-
20
-
20
- ns
Write Recovery Time
tWR
15
-
15
-
15
-
15
- ns
Write to Read Command Delay
tWTR
1
-
1
-
1
-
1
- CK
Auto Precharge Write Recovery +
Precharge Time
tDAL
(tWR/
tCK)
+
(tRP/tCK)
-
(tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
(tWR/tCK)
+
-
+
(tRP/tCK)
(tRP/tCK)
CK 15
System Clock Cycle
Time
CL = 2.5
7.5
12
7.5
12
7.5
12
tCK
CL = 2
7.5
12
10
12
10
12
8
10
12
ns
12
Clock High Level Width
tCH
0.45
0.55
0.45 0.55
0.45
0.55
0.45
0.55 CK
Clock Low Level Width
tCL
0.45 0.55 0.45 0.55
0.45
0.55
0.45
0.55 CK
Data-Out edge to Clock edge Skew tAC
-0.7
0.7
-0.7
0.7
-0.7
0.7
-0.7
0.7 ns
DQS-Out edge to Clock edge Skew tDQSCK -0.7
0.7
-0.7
0.7
-0.7
0.7
-0.7
0.7 ns
DQS-Out edge to Data-Out edge
Skew
tDQSQ
-
0.5
0.5
-
0.5
0.6 ns
Data-Out hold time from DQS
tQH
tHP
-tQHS
-
tHP
-tQHS
-
tHP
-tQHS
-
tHP
-tQHS
- ns 1, 10
Clock Half Period
tHP
min
(tCL,tCH)
-
min
(tCL,tCH)
-
min
(tCL,tCH)
-
min
(tCL,tCH)
-
ns
1,9
Data Hold Skew Factor
tQHS
-
0.75
-
0.75
-
0.75
-
0.75 ns 10
Data-out high-impedance window
from CK, /CK
tHZ
-0.75 0.75 -0.75 0.75 -0.75 0.75
-0.8
0.8 ns 17
Data-out low-impedance window
from CK, /CK
tLZ
-0.75 0.75 -0.75 0.75 -0.75 0.75
-0.8
0.8 ns 17
Input Setup Time (fast slew rate)
tIS
0.9
-
0.9
-
0.9
-
1.1
- ns 2,3,5,6
Input Hold Time (fast slew rate)
tIH
0.9
-
0.9
-
0.9
-
1.1
- ns 2,3,5,6
Rev. 0.1 / June 2004
9