hyb18t512161bf-33 Infineon Technologies Corporation, hyb18t512161bf-33 Datasheet - Page 78

• Manufacturer Part Number: hyb18t512161bf-33
• Description: 512-mbit X16 Gddr2 Dram
• Manufacturer: Infineon Technologies Corporation

5.7.2
List of Timing Parameters
Table 36
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
Data Sheet
AC Timing Parameters
Timing Parameter by Speed Grade
Symbol –22
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
Min.
78
–450
2
0.45
3
0.45
WR + t
t
t
345
345
0.35
–450
0.35
—
WL – 0.25
345
345
0.2
0.2
MIN. (t
—
650
0.6
650
2
t
t
2
IS
IH
AC.MIN
AC.MIN
+ t
CK
512-Mbit Double-Data-Rate-Two SDRAM
CL,
RP
+
t
CH
)
Max.
+450
—
0.55
—
0.55
—
––
––
––
—
—
450
WL +
0.25
––
––
—
—
t
—
—
—
t
t
—
AC.MAX
AC.MAX
AC.MAX
450
HYB18T512161BF–22/25/28/33
–25
Min.
–500
2
0.45
3
0.45
WR + t
t
t
375
375
0.35
–500
0.35
—
WL – 0.25 WL +
375
375
0.2
0.2
MIN. (t
—
700
0.6
700
2
t
t
2
IS
IH
AC.MIN
AC.MIN
+ t
CK
CL,
RP
+
Electrical Characteristics
t
CH
Max.
+500
—
0.55
—
0.55
—
––
––
––
—
—
450
0.25
––
––
—
—
t
—
—
—
t
t
—
)
AC.MAX
AC.MAX
AC.MAX
500
05102005-C5U8-7TLE
Rev. 1.1, 2005-08
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
1)2)3)4)
5)6)
7)18)
8)
9)
9)
9)
10)
9)
9)
11)
12)
12)
12)