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Electrical Characteristics and AC Operating Conditions
Table 57: Electrical Characteristics and AC Operating Conditions for Speed Extensions
Notes 1–8 apply to the entire table
Parameter
Symbol
DDR3-1866
Units
Notes
Min
Max
Clock Timing
Clock period average: DLL disable mode TC = 0°C to 85°C
tCKdll_dis
8
7800
ns
TC = >85°C to 95°C
8
3900
ns
Clock period average: DLL enable mode
tCK (AVG)
lowed
ns
High pulse width average
tCH (AVG)
0.47
0.53
CK
Low pulse width average
tCL (AVG)
0.47
0.53
CK
Clock period jitter
DLL locked
tJITper
–60
60
ps
DLL locking
tJITper, lck
–50
50
ps
Clock absolute period
tCK(ABS)
MIN = tCK (AVG) MIN + tJITp-
er MIN; MAX = tCK (AVG)
MAX + tJITper MAX
ps
Clock absolute high pulse width
tCH (ABS)
0.43
–
tCK (AVG)
Clock absolute low pulse width
tCL (ABS)
0.43
–
tCK (AVG)
Cycle-to-cycle jitter
DLL locked
tJITcc
120
ps
DLL locking
tJITcc, lck
100
ps
2Gb:
x4,
x8,
x16
DDR3
SDRAM
Electrical
Characteristics
and
AC
Operating
Conditions
PDF:
09005aef826aaadc
2Gb_DDR3_SDRAM.pdf
–
Rev.
K
04/10
EN
87
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