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HYMD564M646AL6-D43 Datasheet, PDF (10/17 Pages) Hynix Semiconductor – Unbuffered DDR SO-DIMM
HYMD564M646A(L)6-D43/D4/J
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
Parameter
Symbol
D43(DDR400)
Min
Max
D4(DDR400)
Min
Max
J(DDR333)
Min
Max
Row Cycle Time
tRC
55
-
58
-
60
-
Auto Refresh Row Cycle Time
tRFC
70
-
70
-
72
-
Row Active Time
tRAS
40
70K
40
70K
42
70K
Active to Read with Auto Precharge Delay tRAP
tRCD or
tRASmin
-
tRCD or
tRASmin
-
tRCD or
tRASmin
-
Row Address to Column Address Delay
tRCD
15
-
18
-
18
-
Row Active to Row Active Delay
tRRD
10
-
10
-
12
-
Column Address to Column Address
Delay
tCCD
1
-
1
-
1
-
Row Precharge Time
tRP
15
-
18
-
18
-
Write Recovery Time
tWR
15
-
15
-
15
-
Write to Read Command Delay
tWTR
2
-
2
-
1
-
Auto Precharge Write
Recovery+Precharge Time
tDAL
(tWR/tCK)+
(tRP/tCK)
-
(tWR/tCK)+
(tRP/tCK)
-
(tWR/tCK)+
(tRP/tCK)
-
System Clock Cycle
Time
CL=3
CL = 2.5
tCK
CL = 2
5
10
5
10
-
-
-
-
-
-
6
12
-
-
-
-
7.5
12
Clock High Level Width
tCH
0.45
0.55
0.45
0.55
0.45
0.55
Clock Low Level Width
tCL
0.45
0.55
0.45
0.55
0.45
0.55
Data-Out edge to Clock edge Skew
tAC
-0.7
0.7
-0.7
0.7
-0.7
0.7
DQS-Out edge to Clock edge Skew
tDQSCK -0.55 0.55 -0.55 0.55
-0.55
0.55
DQS-Out edge to Data-Out edge Skew
tDQSQ
-
0.4
-
0.4
-
0.45
Data-Out hold time from DQS
tQH
tHPmin
-tQHS
-
tHPmin
-tQHS
-
tHPmin
-tQHS
-
Clock Half Period
tHP
tCH/L
min
-
tCH/L
min
-
tCH/L
min
-
Data Hold Skew Factor
tQHS
-
0.5
-
0.5
-
0.55
Data-out high-impedance window from
CK, /CK
tHZ
tAC
(Max)
tAC
(Max)
-0.7
0.7
Data-out low-impedance window from CK,
/CK
tLZ
tAC
(Min)
tAC
(Max)
tAC
(Min)
tAC
(Max)
-0.7
0.7
Input Setup Time (fast slew rate)
tIS
0.6
-
0.6
-
0.75
-
Input Hold Time (fast slew rate)
tIH
0.6
-
0.6
-
0.75
-
Input Setup Time (slow slew rate)
tIS
0.7
-
0.7
-
0.8
-
Input Hold Time (slow slew rate)
Input Pulse Width
tIH
0.7
-
0.7
-
0.8
-
tIPW
2.2
-
2.2
-
2.2
-
Unit Note
ns
ns
ns
ns 16
ns
ns
CK
ns
ns
CK
CK 15
ns
ns
ns
CK
CK
ns
ns
ns
ns 1, 10
ns 1,9
ns 10
ns
ns
ns
2,3,5,
6
ns
2,3,5,
6
ns
2,4,5,
6
ns
2,4,5,
6
ns
6
Rev. 0.2 / Apr. 2004
10