HY5DU283222AF-5 HYNIX [Hynix Semiconductor], HY5DU283222AF-5 Datasheet - Page 28

• Manufacturer Part Number: HY5DU283222AF-5
• Description: 128M(4Mx32) GDDR SDRAM
• Manufacturer: HYNIX [Hynix Semiconductor]

Input Setup Time
Input Hold Time
Write DQS High Level
Width
Write DQS Low Level
Width
Clock to First Rising edge
of DQS-In
Data-In Setup Time to
DQS-In (DQ & DM)
Data-In Hold Time to
DQS-In (DQ & DM)
DQS falling edge to CK
setup time
DQS falling edge hold
time from CK
Read DQS Preamble Time
Read DQS Postamble
Time
Write DQS Preamble
Setup Time
Write DQS Preamble Hold
Time
Write DQS Postamble
Time
Mode Register Set Delay
Exit Self Refresh to Any
Execute Command
Power Down Exit Time
Average Periodic Refresh
Interval
Note :
1.
2.
3.
4.
Rev. 0.7 / Jun. 2004
Parameter
This calculation accounts for tDQSQ(max), the pulse width distortion of on-chip circuit and jitter.
Data sampled at the rising edges of the clock : A0~A11, BA0~BA1, CKE, /CS, /RAS, /CAS, /WE.
Data latched at both rising and falling edges of Data Strobes(DQS0~DQS3) : DQ, DM(0~3).
Minimum of 200 cycles of stable input clocks after Self Refresh Exit command, where CKE is held high, is required to complete
Self Refresh Exit and lock the internal DLL circuit of DDR SDRAM.
Symbol
t
t
t
t
WPREH
t
t
t
t
WPRES
t
tDSH
tDSS
t
t
DQSH
DQSS
WPST
t
DQSL
RPRE
RPST
PDEX
t
MRD
REFI
t
t
XSC
t
DH
DS
IH
IS
+ tIS
2tCK
0.75
0.75
0.85
0.35
0.35
0.35
Min
200
0.4
0.4
0.4
0.3
0.3
0.9
0.4
0
2
-
28
Max
1.15
0.6
0.6
1.1
0.6
0.6
7.8
-
-
-
-
-
-
-
-
-
-
-
+ tIS
2tCK
Min
0.75
0.75
0.85
0.35
0.35
0.35
200
0.4
0.4
0.3
0.3
0.9
0.4
0.4
0
2
-
33
Max
1.15
0.6
0.6
1.1
0.6
0.6
7.8
-
-
-
-
-
-
-
-
-
-
-
+ tIS
0.85
0.35
1tCK
Min
0.75
0.75
200
0.4
0.4
0.4
0.4
0.3
0.3
0.9
0.4
0.4
0
2
-
36
Max
1.15
0.6
0.6
1.1
0.6
0.6
7.8
-
-
-
-
-
-
-
-
-
-
-
+ tIS
0.85
0.35
1tCK
Min
0.75
0.75
200
0.4
0.4
0.4
0.4
0.3
0.3
0.9
0.4
0.4
0
2
-
4
Max
1.15
0.6
0.6
1.1
0.6
0.6
7.8
-
-
-
-
-
-
-
-
-
-
-
HY5DU283222AF
+ tIS
1tCK
0.75
0.75
0.85
0.45
0.45
0.35
Min
200
0.4
0.4
0.3
0.3
0.9
0.4
0.4
0
2
-
5
Max
1.15
0.6
0.6
1.1
0.6
0.6
7.8
-
-
-
-
-
-
-
-
-
-
-
Unit
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
ns
ns
ns
ns
ns
us
28
Note
2
2
3
3
4