hyb18t512160b2fl-5 Qimonda, hyb18t512160b2fl-5 Datasheet - Page 53

• Manufacturer Part Number: hyb18t512160b2fl-5
• Description: 512-mbit Double-data-rate-two Sdram
• Manufacturer: Qimonda

The following parameters are specified per their average values however, it is understood that the following relationship
between the average timing and the absolute instantaneous timing holds all the time.
Rev. 1.40, 2008-03
10062006-YPTZ-CDR7
Symbol
t
t
t
t
ERR.nPER
CH.AVG
CL.AVG
JIT.DUTY
Parameter
Cumulative error
across n cycles
Average high-pulse
width
Average low-pulse
width
Duty-cycle jitter
Description
t
from
where, i = 1 to 200 and
n = 3 for
n = 4 for
n = 5 for
6 ≤ n ≤ 10 for
11 ≤ n ≤ 50 for
t
any consecutive 200 high pulses:
N = 200
t
consecutive 200 low pulses:
N = 200
t
t
t
t
t
ERR.2PER
CH.AVG
CL.AVG
JIT.DUTY
JIT.CH
JIT.CL
JIT.CH
JIT.CL
t
CK.AVG
is the largest deviation of any single
= {
is the largest deviation of any single
= {
is defined as the average low-pulse width, as calculated across any
is defined as the average high-pulse width, as calculated across
= Min/Max of {
t
t
is defined as the cumulative error across n consecutive cycles
t
t
t
CLi
CHi
ERR.3PER
ERR.4PER
ERR.5PER
:
-
-
t
t
t
ERR.6-10PER
CL.AVG
CH.AVG
t
ERR.11-50PER
53
×
×
t
t
CK.AVG
JIT.CH
t
CK.AVG
,
} where i=1 to 200
} where i=1 to 200
t
JIT.CL
}, where:
512-Mbit Double-Data-Rate-Two SDRAM
HY[B/I]18T512[40/80/16]0B2[C/F](L)
t
t
CL
CH
from
from
t
t
CL.AVG
CH.AVG
Internet Data Sheet
Units
ps
t
t
ps
CK.AVG
CK.AVG