HY5PS1G431CFP Datasheet, PDF (23/37 Pages) Hynix Semiconductor – 1Gb DDR2 SDRAM

HY5PS1G431C(L)FP
HY5PS1G831C(L)FP
HY5PS1G1631C(L)FP
Parameter
Symbol
DQ output access time from CK/CK
DQS output access time from CK/CK
CK high-level width
CK low-level width
tAC
tDQSCK
tCH
tCL
CK half period
tHP
Clock cycle time, CL=x
tCK
DQ and DM input setup time
tDS(base)
DQ and DM input hold time
tDH(base)
Control & Address input pulse width for each input tIPW
DQ and DM input pulse width for each input
tDIPW
Data-out high-impedance time from CK/CK
tHZ
DQS low-impedance time from CK/CK
tLZ(DQS)
DQ low-impedance time from CK/CK
tLZ(DQ)
DQS-DQ skew for DQS and associated DQ signals tDQSQ
DQ hold skew factor
tQHS
DQ/DQS output hold time from DQS
tQH
First DQS latching transition to associated clock
edge
tDQSS
DQS input high pulse width
tDQSH
DQS input low pulse width
tDQSL
DQS falling edge to CK setup time
tDSS
DQS falling edge hold time from CK
tDSH
Mode register set command cycle time
tMRD
Write postamble
tWPST
Write preamble
tWPRE
Address and control input setup time
tIS(base)
Address and control input hold time
tIH(base)
Read preamble
tRPRE
Read postamble
tRPST
Activate to precharge command
tRAS
Active to active command period for 1KB page size _tRRD
products (x4, x8)
Active to active command period for 2KB page size
products (x16)
tRRD
Four Active Window for 1KB page size products
tFAW
Four Active Window for 2KB page size products
tFAW
CAS to CAS command delay
tCCD
Write recovery time
tWR
Auto precharge write recovery + precharge time tDAL
Rev. 0.2 /Dec 2006
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
0.35
200
275
0.9
0.4
45
-
-
-
-
-
0.6
-
-
-
1.1
0.6
70000
7.5
-
10
-
37.5
-
50
-
2
15
-
WR+tRP
-
DDR2-800
min
max
-400
+400
-350
+350
0.45
0.55
0.45
0.55
min(tCL,
-
tCH)
2500
50
-
125
-
0.6
-
0.35
-
-
tAC max
tAC min
tAC max
2*tAC min
tAC max
-
200
-
300
tHP - tQHS
-
- 0.25
+ 0.25
0.35
0.35
0.2
0.2
2
0.4
0.35
175
250
0.9
0.4
45
-
-
-
-
-
0.6
-
-
-
1.1
0.6
70000
7.5
-
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
10
37.5
50
2
15
WR+tRP
-
ns
4
-
ns
-
ns
tCK
-
ns
-
tCK
14
23