HY5PS2G431AMP Datasheet, PDF (21/35 Pages) Hynix Semiconductor – 2Gb DDR2 SDRAM(DDP)

1HY5PS2G431AMP
1HY5PS2G831AMP
Parameter
DQ output access time from CK/CK
DQS output access time from CK/CK
CK high-level width
CK low-level width
CK half period
Clock cycle time, CL=x
DQ and DM input setup time
DQ and DM input hold time
Control & Address input pulse width for each input
DQ and DM input pulse width for each input
Data-out high-impedance time from CK/CK
DQS low-impedance time from CK/CK
DQ low-impedance time from CK/CK
DQS-DQ skew for DQS and associated DQ signals
DQ hold skew factor
DQ/DQS output hold time from DQS
First DQS latching transition to associated clock edge
DQS input high pulse width
DQS input low pulse width
DQS falling edge to CK setup time
DQS falling edge hold time from CK
Mode register set command cycle time
Write postamble
Write preamble
Address and control input setup time
Address and control input hold time
Read preamble
Read postamble
Activate to precharge command
Active to active command period for 1KB page size products
Active to active command period for 2KB page size products
Four Active Window for 1KB page size products
Four Active Window for 2KB page size products
CAS to CAS command delay
Write recovery time
Auto precharge write recovery + precharge time
Internal write to read command delay
Internal read to precharge command delay
Exit self refresh to a non-read command
Rev. 0.6 / Oct. 2007
Symbol
tAC
tDQSCK
tCH
tCL
tHP
tCK
tDS(base)
tDH(base)
tIPW
tDIPW
tHZ
tLZ(DQS)
tLZ(DQ)
tDQSQ
tQHS
tQH
tDQSS
tDQSH
tDQSL
tDSS
tDSH
tMRD
tWPST
tWPRE
tIS(base)
tIH(base)
tRPRE
tRPST
tRAS
tRRD
tRRD
tFAW
tFAW
tCCD
tWR
tDAL
tWTR
tRTP
tXSNR
DDR2-667
min
max
-450
+450
-400
+400
0.45
0.55
0.45
0.55
min(tCL,
tCH)
-
3000
8000
100
-
175
-
0.6
-
0.35
-
-
tAC max
tAC min
tAC max
2*tAC min
tAC max
-
240
-
340
tHP - tQHS
-
- 0.25
+ 0.25
0.35
-
0.35
-
0.2
-
0.2
-
2
-
0.4
0.6
0.35
-
200
-
275
-
0.9
1.1
0.4
0.6
45
70000
7.5
-
10
-
37.5
-
50
-
2
15
-
WR+tRP
-
7.5
-
7.5
tRFC + 10
Unit
Note
ps
ps
tCK
tCK
ps
11,12
ps
15
ps
6,7,8,20
ps
6,7,8,21
tCK
tCK
ps
18
ps
18
ps
18
ps
13
ps
12
ps
tCK
tCK
tCK
tCK
tCK
tCK
tCK
10
tCK
ps
5,7,9,22
ps
5,7,9,23
tCK
19
tCK
19
ns
3
ns
4
ns
4
ns
ns
tCK
ns
tCK
14
ns
ns
3
ns
21