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K4H560438E-GCCC Datasheet

  • K4H560438E-GCCC

  • 256Mb E-die DDR 400 SDRAM Specification 60Ball FBGA (x4/x8)

  • 18頁

  • SAMSUNG   SAMSUNG

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DDR SDRAM 256Mb E-die (x4, x8)
System Characteristics for DDR SDRAM
DDR SDRAM
The following specification parameters are required in systems using DDR400 devices to ensure proper system perfor-
mance. these characteristics are for system simulation purposes and are guaranteed by design.
Table 1 : Input Slew Rate for DQ, DQS, and DM
AC CHARACTERISTICS
PARAMETER
DQ/DM/DQS input slew rate measured between
VIH(DC), VIL(DC) and VIL(DC), VIH(DC)
SYMBOL
DCSLEW
DDR400
MIN
0.5
MAX
4.0
Units
V/ns
Notes
a, k
Table 2 : Input Setup & Hold Time Derating for Slew Rate
Input Slew Rate
0.5 V/ns
0.4 V/ns
0.3 V/ns
tIS
0
+50
+100
tIH
0
0
0
Units
ps
ps
ps
Notes
h
h
h
Table 3 : Input/Output Setup & Hold Time Derating for Slew Rate
Input Slew Rate
0.5 V/ns
0.4 V/ns
0.3 V/ns
tDS
0
+75
+150
tDH
0
+75
+150
Units
ps
ps
ps
Notes
j
j
j
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
i
i
i
Table 5 : Output Slew Rate Characteristice (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
b,c,d,f,g
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
b,c,d,f,g
Table 7 : Output Slew Rate Matching Ratio Characteristics
AC CHARACTERISTICS
PARAMETER
Output Slew Rate Matching Ratio (Pullup to Pulldown)
DDR400
MIN
-
MAX
-
Notes
e,k
Rev. 1.1 September. 2003

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