DDR SDRAM stacked 512Mb E-die (x4/x8)
Table 4 : Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
Delta Slew Rate
+/- 0.0 V/ns
+/- 0.25 V/ns
+/- 0.5 V/ns
tDS
0
+50
+100
tDH
0
+50
+100
Units
ps
ps
ps
Notes
j
j
j
DDR SDRAM
Table 5 : Output Slew Rate Characteristice (X4, X8 Devices only)
Slew Rate Characteristic
Pullup Slew Rate
Pulldown slew
Typical Range
(V/ns)
1.2 ~ 2.5
1.2 ~ 2.5
Minimum
(V/ns)
1.0
1.0
Maximum
(V/ns)
4.5
4.5
Notes
a,c,d,f,g,h
b,c,d,f,g,h
Table 6 : Output Slew Rate Characteristice (X16 Devices only)
Slew Rate Characteristic
Pullup Slew Rate
Pulldown slew
Typical Range
(V/ns)
1.2 ~ 2.5
1.2 ~ 2.5
Minimum
(V/ns)
0.7
0.7
Maximum
(V/ns)
5.0
5.0
Notes
a,c,d,f,g,h
b,c,d,f,g,h
Table 7 : Output Slew Rate Matching Ratio Characteristics
AC CHARACTERISTICS
PARAMETER
Output Slew Rate Matching Ratio (Pullup to Pulldown)
DDR266
MIN
TBD
MAX
TBD
DDR200
MIN
0.67
MAX
1.5
Notes
e,m
Rev. 1.0 July. 2003