m368l2923fln Samsung Semiconductor, Inc., m368l2923fln Datasheet - Page 12

• Manufacturer Part Number: m368l2923fln
• Description: Ddr Sdram Unbuffered Module
• Manufacturer: Samsung Semiconductor, Inc.

13.0 System Characteristics for DDR SDRAM
The following specification parameters are required in systems using DDR400, DDR333 devices to ensure proper system performance.
these characteristics are for system simulation purposes and are guaranteed by design.
Table 1 : Input Slew Rate for DQ, DQS, and DM
Table 2 : Input Setup & Hold Time Derating for Slew Rate
Table 3 : Input/Output Setup & Hold Time Derating for Slew Rate
Table 4 : Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
Table 5 : Output Slew Rate Characteristice (X4, X8 Devices only)
Table 6 : Output Slew Rate Characteristice (X16 Devices only)
Table 7 : Output Slew Rate Matching Ratio Characteristics
512MB, 1GB Unbuffered DIMM
DQ/DM/DQS input slew rate measured between
V
Output Slew Rate Matching Ratio (Pullup to Pulldown)
IH
Slew Rate Characteristic
Slew Rate Characteristic
(DC), V
Input Slew Rate
Input Slew Rate
Delta Slew Rate
+/- 0.25 V/ns
+/- 0.0 V/ns
+/- 0.5 V/ns
Pullup Slew Rate
Pullup Slew Rate
0.5 V/ns
0.4 V/ns
0.3 V/ns
0.5 V/ns
0.4 V/ns
0.3 V/ns
Pulldown slew
Pulldown slew
IL
(DC) and V
AC CHARACTERISTICS
AC CHARACTERISTICS
PARAMETER
PARAMETER
IL
(DC), V
∆tDS
∆tDS
+100
+150
+100
∆tIS
+50
+75
+50
0
0
0
IH
Typical Range
Typical Range
(DC)
1.2 ~ 2.5
1.2 ~ 2.5
1.2 ~ 2.5
1.2 ~ 2.5
(V/ns)
(V/ns)
∆tDH
∆tDH
+150
+100
∆tIH
+75
+50
0
0
0
0
0
Minimum
Minimum
(V/ns)
(V/ns)
1.0
1.0
0.7
0.7
SYMBOL
DCSLEW
0.67
MIN
DDR400
Units
Units
Units
ps
ps
ps
ps
ps
ps
ps
ps
ps
Maximum
Maximum
MAX
1.5
MIN
(V/ns)
(V/ns)
0.5
10 of 15
4.5
4.5
5.0
5.0
DDR400
Notes
Notes
Notes
0.67
MIN
MAX
4.0
k
k
k
i
i
i
j
j
j
DDR333
a,c,d,f,g,h
b,c,d,f,g,h
a,c,d,f,g,h
b,c,d,f,g,h
Notes
Notes
MAX
1.5
MIN
0.5
DDR333
MAX
4.0
Notes
e, l
Units
V/ns
Rev. 1.01 August 2008
Notes
a, l
DDR SDRAM