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W9425G6EH
10.6 Table 6: Output Slew Rate Matching Ratio Characteristics
SLEW RATE CHARACTERISTIC
PARAMETER
DDR500
MIN. MAX.
DDR400
MIN. MAX.
DDR333
MIN. MAX.
NOTES
Output Slew Rate Matching Ratio
(Pullup to Pulldown)
0.67
1.5
0.67
1.5
0.67
1.5
e, m
10.7 Table 7: AC Overshoot/Undershoot Specification for Address and Control Pins
PARAMETER
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
The area between the overshoot signal and VDD
must be less than or equal to Max. area in Figure 3
The area between the undershoot signal and GND
must be less than or equal to Max. area in Figure 3
DDR500
1.5 V
1.5 V
3.0 V-nS
3.0 V-nS
SPECIFICATION
DDR400
1.5 V
1.5 V
3.0 V-nS
3.0 V-nS
DDR333
1.5 V
1.5 V
3.6 V-nS
3.6 V-nS
VDD
Overshoot
5
4
3
2
1
0
-1
-2
Max. area
Max. amplitude = 1.5V
-3
Max. amplitude = 1.5V
GND
-4
-5
0 0.5 0.68751.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.06.3125 6.5 7.0
Time (nS)
Undershoot
Figure 3: Address and Control AC Overshoot and Undershoot Definition
Publication Release Date:Dec. 03, 2008
- 32 -
Revision A08
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