HYMD232G726L8-K Datasheet, PDF (9/16 Pages) Hynix Semiconductor – Registered DDR SDRAM DIMM

HYMD232G726(L)8-K/H/L
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
Parameter
Symbol
-K(DDR266A)
Min
Max
-H(DDR266B)
Min Max
-L(DDR200)
Unit Note
Min Max
Row Cycle Time
tRC
65
-
65
-
70
-
ns
Auto Refresh Row Cycle Time
Row Active Time
tRFC
tRAS
75
-
75
-
80
-
ns
45
120K
45
120K 50
120k ns
Active to Read with Auto Precharge Delay tRAP
20
-
20
-
20
-
ns 16
Row Address to Column Address Delay
tRCD
20
Row Active to Row Active Delay
tRRD
15
Column Address to Column Address Delay tCCD
1
-
20
-
20
-
ns
-
15
-
15
-
ns
-
1
-
1
-
CK
Row Precharge Time
tRP
20
-
20
-
20
-
ns
Write Recovery Time
tWR
15
-
15
-
15
-
ns
Write to Read Command Delay
Auto Precharge Write Recovery +
Precharge Time
System Clock Cycle Time
CL = 2.5
CL = 2
tWTR
1
-
1
-
1
-
CK
tDAL
(tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
(tWR/tCK)
-
+
-
+
-
(tRP/tCK)
(tRP/tCK)
CK 15
7.5
12
7.5
12
8.0
12 ns
tCK
7.5
12
10
12
10
12 ns
Clock High Level Width
Clock Low Level Width
tCH
0.45
0.55 0.45 0.55 0.45 0.55 CK
tCL
0.45
0.55 0.45 0.55 0.45 0.55 CK
Data-Out edge to Clock edge Skew
tAC
-0.75
0.75 -0.75 0.75 -0.8
0.8 ns
DQS-Out edge to Clock edge Skew
DQS-Out edge to Data-Out edge Skew
tDQSCK
tDQSQ
-0.75
-
0.75 -0.75 0.75 -0.8
0.5
-
0.5
-
0.8 ns
0.6 ns
Data-Out hold time from DQS
Clock Half Period
tQH
tHP
-tQHS
tHP
min
(tCL,tCH)
-
tHP
-tQHS
-
tHP
-tQHS
-
-
min
(tCL,tCH)
-
min
(tCL,tCH)
-
ns 1, 10
ns 1,9
Data Hold Skew Factor
tQHS
-
0.75
-
0.75
-
0.75 ns 10
Valid Data Output Window
tDV
Data-out high-impedance window from CK,
/CK
tHZ
tQH-tDQSQ
tQH-tDQSQ
tQH-tDQSQ
ns
-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 -0.8
0.8 ns 17
Input Setup Time (fast slew rate)
Input Hold Time (fast slew rate)
tIS
0.9
-
0.9
-
1.1
-
ns 2,3,5,6
tIH
0.9
-
0.9
-
1.1
-
ns 2,3,5,6
Input Setup Time (slow slew rate)
Input Hold Time (slow slew rate)
Input Pulse Width
tIS
1.0
tIH
1.0
tIPW
2.2
-
1.0
-
1.1
-
ns 2,4,5,6
-
1.0
-
1.1
-
ns 2,4,5,6
2.2
2.5
-
ns
6
Rev. 0.6/Oct. 02
9