EDJ2108EDBG Datasheet, PDF (11/150 Pages) Elpida Memory – Differential clock inputs

EDJ2104EDBG, EDJ2108EDBG
[Derating Values of tIS/tIH AC/DC based AC160 Threshold (DDR3L-1600, 1333, 1066)]
∆tIS, ∆tIH derating in [ps] AC/DC based
AC160 Threshold -> VIH(AC)=VREF(DC)+160mV, VIL(AC)=VREF(DC)-160mV
CK, /CK differential slew rate
4.0 V/ns 3.0 V/ns 2.0 V/ns 1.8 V/ns 1.6 V/ns 1.4 V/ns 1.2 V/ns 1.0 V/ns
∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH Unit
2.0 +80 +45 +80 +45 +80 +45 +88 +53 +96 +61 +104 +69 +112 +79 +120 +95 ps
1.5 +53 +30 +53 +30 +53 +30 +61 +38 +69 +46 +77 +54 +85 +64 +93 +80 ps
1.0 0
CMD,
ADD ^{0.9 −1}
slew _{0.8 −3}
rate
(V/ns) ^{0.7 −5}
0.6 −8
00
−3 −1
−8 −3
−13 −5
−20 −8
00
−3 −1
−8 −3
−13 −5
−20 −8
0 +8
−3 +7
−8 +5
−13 +3
−20 0
+8 +16 +16 +24 +24 +32 +34 +40 +50 ps
+5 +15 +13 +23 +21 +31 +31 +39 +47 ps
+1 +13 +9 +21 +17 +29 +27 +37 +43 ps
−5 +11 +3 +19 +11 +27 +21 +35 +37 ps
−12 +8 −4 +16 +4 +24 +14 +32 +30 ps
0.5 −20 −30 −20 −30 −20 −30 −12 −22 −4 −14 +4 −6 +12 +4 +20 +20 ps
0.4 −40 −45 −40 −45 −40 −45 −32 −37 −24 −29 −16 −21 −8 −11 0 +5 ps
[Derating Values of tIS/tIH AC/DC based-Alternate AC135 Threshold (DDR3L-1600, 1333, 1066)]
∆tIS, ∆tIH derating in [ps] AC/DC based
Alternate AC135 Threshold -> VIH(AC)=VREF(DC)+135mV, VIL(AC)=VREF(DC)-135mV
CK, /CK differential slew rate
4.0 V/ns 3.0 V/ns 2.0 V/ns 1.8 V/ns 1.6 V/ns 1.4 V/ns 1.2 V/ns 1.0 V/ns
∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH ∆tIS ∆tIH Unit
2.0 +68 +45 +68 +45 +68 +45 +76 +53 +84 +61 +92 +69 +100 +79 +108 +95 ps
1.5 +45 +30 +45 +30 +45 +30 +53 +38 +61 +46 +69 +54 +77 +64 +85 +80 ps
1.0 0
CMD,
ADD ^{0.9 +2}
slew _{0.8 +3}
rate
(V/ns) ^{0.7 +6}
0.6 +9
00
−3 +2
−8 +3
−13 +6
−20 +9
00
−3 +2
−8 +3
−13 +6
−20 +9
0 +8 +8 +16 +16 +24 +24 +32 +34 +40 +50 ps
−3 +10 +5 +18 +13 +26 +21 +34 +31 +42 +47 ps
−8 +11 +1 +19 +9 +27 +17 +35 +27 +43 +43 ps
−13 +14 −5 +22 +3 +30 +11 +38 +21 +46 +37 ps
−20 +17 −12 +25 −4 +33 +4 +41 +14 +49 +30 ps
0.5 +5 −30 +5 −30 +5 −30 +13 −22 +21 −14 +29 −6 +37 +4 +45 +20 ps
0.4 −3 −45 −3 −45 −3 −45 +6 −37 +14 −29 +22 −21 +30 −11 +38 +5 ps
[Required time tVAC above VIH(AC) {below VIL(AC)} for Valid Transition]
tVAC @ AC160mV [ps]
tVAC @ AC135mV [ps]
Slew rate (V/ns)
min.
max.
min.
max.
>2.0
TBD

TBD

2.0
TBD

TBD

1.5
TBD

TBD

1.0
TBD

TBD

0.9
TBD

TBD

0.8
TBD

TBD

0.7
TBD

TBD

0.6
TBD

TBD

0.5
TBD

TBD

<0.5
TBD

TBD

Data Sheet E1797E41 (Ver. 4.1)
11