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HYB18T1G400BF_07 Datasheet, PDF (56/74 Pages) Qimonda AG – 1-Gbit Double-Data-Rate-Two SDRAM
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Internet Data Sheet
HY[B/I]18T1G[40/80/16]0B[C/F](L/V)
1-Gbit Double-Data-Rate-Two SDRAM
Parameter
TABLE 55
DRAM Component Timing Parameter by Speed Grade - DDR2–533
Symbol
DDR2–533
Min.
Max.
Unit
Note1)2)3)4)5)
6)
DQ output access time from CK / CK
tAC
CAS A to CAS B command period
tCCD
CK, CK high-level width
tCH
CKE minimum high and low pulse width
tCKE
CK, CK low-level width
tCL
Auto-Precharge write recovery + precharge tDAL
time
Minimum time clocks remain ON after CKE
asynchronously drops LOW
tDELAY
DQ and DM input hold time (differential data tDH(base)
strobe)
DQ and DM input hold time (single ended data tDH1(base)
strobe)
DQ and DM input pulse width (each input)
DQS output access time from CK / CK
DQS input low (high) pulse width (write cycle)
DQS-DQ skew (for DQS & associated DQ
signals)
tDIPW
tDQSCK
tDQSL,H
tDQSQ
Write command to 1st DQS latching transition tDQSS
DQ and DM input setup time (differential data tDS(base)
strobe)
DQ and DM input setup time (single ended data tDS1(base)
strobe)
DQS falling edge hold time from CK (write
tDSH
cycle)
DQS falling edge to CK setup time (write cycle) tDSS
Four Activate Window period
tFAW
Four Activate Window period
tFAW
Clock half period
tHP
Data-out high-impedance time from CK / CK tHZ
Address and control input hold time
tIH(base)
Address and control input pulse width
tIPW
(each input)
Address and control input setup time
DQ low-impedance time from CK / CK
DQS low-impedance from CK / CK
MRS command to ODT update delay
Mode register set command cycle time
OCD drive mode output delay
tIS(base)
tLZ(DQ)
tLZ(DQS)
tMOD
tMRD
tOIT
–500
2
0.45
3
0.45
WR + tRP
tIS + tCK + tIH
225
–25
0.35
–450
0.35
—
– 0.25
100
–25
0.2
0.2
37.5
50
MIN. (tCL, tCH)
—
375
0.6
250
2 × tAC.MIN
tAC.MIN
0
2
0
+500
—
0.55
—
0.55
—
––
––
—
—
+450
—
300
+ 0.25
—
—
—
—
—
—
tAC.MAX
—
—
—
tAC.MAX
tAC.MAX
12
—
12
ps
tCK
tCK
tCK
tCK
tCK
7)17)
ns
8)
ps
9)
ps
10)
tCK
ps
tCK
ps
10)
tCK
ps
10)
ps
10)
tCK
tCK
ns
ns
12)
11)
ps
12)
ps
10)
tCK
ps
10)
ps
13)
ps
13)
ns
tCK
ns
Rev. 1.3, 2007-07
56
03062006-ZNH8-HURV
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