HY5DU12822DFP-D43 Datasheet, PDF (26/29 Pages) Hynix Semiconductor – 512Mb DDR SDRAM

1
HY5DU12822DF(P) / HY5DU121622DF(P)
SYSTEM CHARACTERISTICS CONDITIONS for DDR SDRAMS
The following tables are described specification parameters that required in systems using DDR devices to ensure
proper performance. These characteristics are for system simulation purposes and are guaranteed by design.
Input Slew Rate for DQ/DM/DQS (Table a.)
AC CHARACTERISTICS
PARAMETER
Symbol
DQ/DM/DQS input slew rate
measured between VIH(DC), DCSLEW
VIL(DC) and VIL(DC), VIH(DC)
DDR400
min max
0.5 4.0
DDR333
min max
0.5 4.0
DDR266
min max
0.5 4.0
DDR200
UNIT Note
min max
0.5 4.0 V/ns 1,12
Address & Control Input Setup & Hold Time Derating (Table b.)
Input Slew Rate
0.5 V/ns
0.4 V/ns
0.3 V/ns
Delta tIS
0
+50
+100
Delta tIH
0
0
0
UNIT
ps
ps
ps
Note
9
9
9
DQ & DM Input Setup & Hold Time Derating (Table c.)
Input Slew Rate
0.5 V/ns
0.4 V/ns
0.3 V/ns
Delta tDS
0
+75
+150
Delta tDH
0
0
0
UNIT
ps
ps
ps
Note
11
11
11
DQ & DM Input Setup & Hold Time Derating for Rise/Fall Delta Slew Rate (Table d.)
Input Slew Rate
± 0.0 ns/V
± 0.25 ns/V
± 0.5 ns/V
Delta tDS
0
+50
+100
Delta tDH
0
+50
+100
UNIT
ps
ps
ps
Note
10
10
10
Output Slew Rate Characteristics (for x4, x8 Devices) (Table e.)
Slew Rate Characteristic
Pullup Slew Rate
Pulldown Slew Rate
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
Note
1,3,4,6,7,8
2,3,4,6,7,8
Output Slew Rate Characteristics (for x16 Device) (Table f.)
Slew Rate Characteristic
Pullup Slew Rate
Pulldown Slew Rate
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
Note
1,3,4,6,7,8
2,3,4,6,7,8
Output Slew Rate Matching Ratio Characteristics (Table g.)
Slew Rate Characteristic
Parameter
Output Slew Rate Matching Ratio
(Pullup to Pulldown)
DDR266A
min
max
-
-
DDR266B
min
max
-
-
DDR200
min
max
0.71
1.4
Note
5,12
Rev 1.0 / May 2007
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