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
DDR3-1866
DDR3-2133
Parameter
Symbol
Min
Clock Timing
Max
Min
Max
Unit Notes
Clock period average:
DLL disable mode
TC = 0°C to 85°C
tCK
(DLL_DIS)
8
8
7800
3900
8
8
7800
3900
ns
ns
9, 42
42
TC = >85°C to 95°C
Clock period average: DLL enable mode
High pulse width average
tCK (AVG)
tCH (AVG)
tCL (AVG)
tJITper
tJITper,lck
tCK (ABS)
See Speed Bin Tables (page 74) for tCK range allowed ns
10, 11
12
0.47
0.47
–60
0.53
0.53
60
0.47
0.47
–50
0.53
0.53
50
CK
CK
ps
Low pulse width average
12
Clock period jitter
DLL locked
DLL locking
13
–50
50
–40
40
ps
13
Clock absolute period
MIN = tCK (AVG) MIN +
tJITper MIN; MAX =
tCK (AVG) MAX +
tJITper MAX ps
Clock absolute high pulse width
Clock absolute low pulse width
tCH (ABS)
tCL (ABS)
0.43
0.43
–
–
0.43
–
–
tCK
(AVG)
tCK
14
15
0.43
(AVG)
Cycle-to-cycle jitter
DLL locked
DLL locking
tJITcc
tJITcc,lck
120
100
120
100
ps
ps
16
16
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