hyb18t512160af-5 Infineon Technologies Corporation, hyb18t512160af-5 Datasheet - Page 99
hyb18t512160af-5
Manufacturer Part Number
hyb18t512160af-5
Description
512-mbit Ddr2 Sdram
Manufacturer
Infineon Technologies Corporation
Datasheet
1.HYB18T512160AF-5.pdf
(117 pages)
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Table 53
Parameter
Data output hold time from DQS
Data hold skew factor
Average periodic refresh Interval
Auto-Refresh to Active/Auto-Refresh command period
Read preamble
Read postamble
Active bank A to Active bank B command period
Internal Read to Precharge command delay
Write preamble
Write postamble
Write recovery time for write without Auto-Precharge
Write recovery time for write with Auto-Precharge
Internal Write to Read command delay
Exit power down to any valid command
(other than NOP or Deselect)
Exit active power-down mode to Read command (slow
exit, lower power)
Exit precharge power-down to any valid command (other
than NOP or Deselect)
Exit Self-Refresh to non-Read command
Exit Self-Refresh to Read command
1)
2) Timing that is not specified is illegal and after such an event, in order to guarantee proper operation, the DRAM must be
3) Timings are guaranteed with CK/CK differential Slew Rate of 2.0 V/ns. For DQS signals timings are guaranteed with a
4) The CK/CK input reference level (for timing reference to CK/CK) is the point at which CK and CK cross.
5) Inputs are not recognized as valid until
6) The output timing reference voltage level is
7) For each of the terms, if not already an integer, round to the next highest integer.
8) The clock frequency is allowed to change during self-refresh mode or precharge power-down mode. In case of clock
9) For timing definition, Slew Rate and Slew Rate derating see Chapter 8.3
10) Consists of data pin skew and output pattern effects, and p-channel to n-channel variation of the output drivers as well as
Data Sheet
V
powered down and then restarted through the specified initialization sequence before normal operation can continue.
differential Slew Rate of 2.0 V/ns in differential strobe mode and a Slew Rate of 1 V/ns in single ended mode. For other
Slew Rates see Chapter 8 of this data sheet. Timings are further guaranteed for normal OCD drive strength (EMRS(1) A1
= 0) under the Reference Load for Timing Measurements according to Chapter 8.1 only.
The DQS/DQS, RDQS/RDQS, input reference level is the crosspoint when in differential strobe mode;
The input reference level for signals other than CK/CK, DQS/DQS, RDQS/RDQS is defined in Chapter 8.3 of this data
sheet.
recognized as low.
WR refers to the WR parameter stored in the MR.
frequency change during power-down, a specific procedure is required as describes in Chapter 2.12.
output Slew Rate mis-match between DQS/DQS and associated DQ in any given cycle.
DDQ
= 1.8 V ± 0.1 V;
Timing Parameter by Speed Grade - DDR2-667
V
DD
= 1.8 V ± 0.1 V. See notes
V
REF
V
stabilizes. During the period before
TT
. See Chapter 8 for the reference load for timing measurements.
3)4)5)6)
99
Symbol
t
t
t
t
t
t
t
t
t
t
t
WR
t
t
t
t
t
t
QH
QHS
REFI
RFC
RPRE
RPST
RRD
RTP
WPRE
WPST
WR
WTR
XARD
XARDS
XP
XSNR
XSRD
HYB18T512[40/80/16]0AF–[3/3S/3.7/5]
DDR2-667
Min.
t
340
—
—
105
0.9
0.40
7.5
10
7.5
0.35
0.40
15
t
7.5
2
7 – AL
2
t
200
HP
WR
RFC
–
/
t
+10
CK
V
t
t
QHS
CK
REF
refers to the application clock period.
stabilizes, CKE = 0.2 x
512-Mbit DDR2 SDRAM
Electrical Characteristics
Max.
—
—
7.8
3.9
—
1.1
0.60
—
—
—
—
0.60
—
—
—
—
—
—
—
09112003-SDM9-IQ3P
Rev. 1.3, 2005-01
Unit
ps
µs
µs
ns
t
t
ns
ns
ns
t
t
ns
t
ns
t
t
t
ns
t
CK
CK
CK
CK
CK
CK
CK
CK
CK
V
Note
1)2)3)4)5)6)
13)14)
13)15)
1)
12)
12)
16)17)
17)18)
19)
20)
21)
21)
DDQ
is
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