m368l6423jun Samsung Semiconductor, Inc., m368l6423jun Datasheet - Page 12

• Manufacturer Part Number: m368l6423jun
• 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 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
256MB, 512MB Unbuffered DIMM
AC CHARACTERISTICS
PARAMETER
DQ/DM/DQS input slew rate measured between
V
AC CHARACTERISTICS
PARAMETER
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
IL
(DC), V
+100
∆tDS
+150
∆tDS
+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
(V/ns)
(V/ns)
12 of 17
4.5
4.5
5.0
5.0
MIN
0.5
DDR400
Notes
Notes
Notes
0.67
MIN
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
MAX
Notes
Notes
4.0
MAX
1.5
0.67
MIN
MIN
0.5
DDR266
DDR333
Rev. 1.0 November 2007
MAX
1.5
MAX
4.0
Notes
DDR SDRAM
e, l
Units
V/ns
Notes
a, l