HYB18T512161B2F-20/25 QIMONDA [Qimonda AG], HYB18T512161B2F-20/25 Datasheet - Page 26

• Manufacturer Part Number: HYB18T512161B2F-20/25
• Description: 512-Mbit x16 DDR2 SDRAM
• Manufacturer: QIMONDA [Qimonda AG]

5.7.2
List of Timing Parameters
Rev. 1.1, 2007-06
05152007-ZYAH-ACMZ
Parameter
DQ output access time from CK / CK
CAS A to CAS B command period
CK, CK high-level width
CKE minimum high and low pulse width
CK, CK low-level width
Auto-Precharge write recovery + precharge
time
Minimum time clocks remain ON after CKE
asynchronously drops LOW
DQ and DM input hold time (differential data
strobe)
DQ and DM input hold time (single ended data
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)
Write command to 1st DQS latching transition
DQ and DM input setup time (differential data
strobe)
DQ and DM input setup time (single ended data
strobe)
DQS falling edge hold time from CK (write cycle)
DQS falling edge to CK setup time (write cycle)
Clock half period
Data-out high-impedance time from CK / CK
Address and control input hold time
Address and control input pulse width
(each input)
Address and control input setup time
DQ low-impedance time from CK / CK
DQS low-impedance from CK / CK
Mode register set command cycle time
AC Timing Parameters
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AC
CCD
CH
CKE
CL
DAL
DELAY
DH
DH1
DIPW
DQSCK
DQSL,H
DQSQ
DQSS
DS
DS1
DSH
DSS
HP
HZ
IH
IPW
IS
LZ(DQ)
LZ(DQS)
MRD
–20
Min.
–450
2
0.45
3
0.45
WR +
t
145
-105
0.35
–450
0.35
—
WL – 0.25
20
-105
0.2
0.2
MIN. (
—
525
0.6
400
2 ×
t
t
2
IS
AC.MIN
AC.MIN
26
+
t
CK
t
t
CL,
RP
+
t
t
CH
IH
) —
Max.
+450
—
0.55
—
0.55
—
––
––
––
—
+450
—
280
WL +
0.25
—
—
t
—
t
t
—
AC.MAX
AC.MAX
AC.MAX
512-Mbit Double-Data-Rate-Two SDRAM
Timing Parameter by Speed Grade
–25
Min.
–500
2
0.45
3
0.45
WR +
t
250
0
0.35
–500
0.35
—
WL – 0.25
125
0
0.2
0.2
MIN. (
—
575
0.6
450
2 ×
t
t
2
IS
AC.MIN
AC.MIN
+
t
CK
t
t
CL,
RP
+
HYB18T512161B2F–20/25
t
t
CH
IH
) —
Max.
+500
—
0.55
—
0.55
—
––
––
––
—
+500
—
280
WL +
0.25
––
––
—
—
t
—
—
—
t
t
—
AC.MAX
AC.MAX
AC.MAX
Internet Data Sheet
TABLE 29
Unit Notes
ps
t
t
t
t
t
ns
ps
ps
t
ps
t
ps
t
ps
ps
t
t
ps
ps
t
ps
ps
ps
t
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
2)3)4)5)6)
7)18)
8)
9)
9)
9)
10)
9)
9)
11)
12)
12)
12)
1)