W9425G6EH_0812 WINBOND [Winbond], W9425G6EH_0812 Datasheet - Page 33
W9425G6EH_0812
Manufacturer Part Number
W9425G6EH_0812
Description
Manufacturer
WINBOND [Winbond]
Datasheet
1.W9425G6EH_0812.pdf
(54 pages)
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10.8 Table 8: Overshoot/Undershoot Specification for Data, Strobe, and Mask Pins
must be less than or equal to Max. area in Figure 4
must be less than or equal to Max. area in Figure 4
The area between the undershoot signal and GND
Maximum peak amplitude allowed for undershoot
The area between the overshoot signal and VDD
Maximum peak amplitude allowed for overshoot
-1
-2
-3
-4
-5
5
4
3
2
1
0
0
Figure 4: DQ/DM/DQS AC Overshoot and Undershoot Definition
0.5 1.0 1.42 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 5.68 6.0 6.5 7.0
PARAMETER
Max. amplitude = 1.2V
Max. area
VDD
Overshoot
- 33 -
Time (nS)
1.44 V-nS
1.44 V-nS
DDR500
1.2 V
1.2 V
Publication Release Date:Dec. 03, 2008
SPECIFICATION
Max. amplitude = 1.2V
1.44 V-nS
1.44 V-nS
DDR400
1.2 V
1.2 V
Undershoot
W9425G6EH
GND
2.25 V-nS
2.25 V-nS
DDR333
Revision A08
1.2 V
1.2 V
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