HY5DU281622ET Datasheet, PDF (25/34 Pages) Hynix Semiconductor – 128M(8Mx16) GDDR SDRAM

HY5DU281622ET
AC Overshoot/Undershoot specifications for Address and Command pins
Parameter
Maximum peak amplitude allowwed for overshoot
Maximum peak amplitude allowwed for undershoot
The area between the overshoot signal and VDD must be less than or equal to(See below Fig)
The area between the overshoot signal and GND must be less than or equal to(See below Fig)
200MHz Specifications
1.5 V
1.5 V
4.5 V-nS
4.5 V-nS
Max. amplitude=1.5V
+5
+4
+3
Volts ⁺²
(V) ₊₁
VDD
0
Ground
-1
-2
Max. area=4.5V-ns _-3
0
1
2
3
4
5
6
Time(ns)
AC Overshoot/Undershoot specifications for Data, Strobe and Mask Pins
Parameter
Maximum peak amplitude allowwed for overshoot
Maximum peak amplitude allowwed for undershoot
The area between the overshoot signal and VDD must be less than or equal to(See below Fig)
The area between the overshoot signal and GND must be less than or equal to(See below Fig)
200MHz Specifications
1.2 V
1.2 V
2.4 V-nS
2.4 V-nS
Max. amplitude=1.2V
+5
+4
+3
Volts ⁺²
(V) ₊₁
VDD
0
Ground
-1
-2
Max. area=2.4V-ns _-3
0
1
2
3
4
5
6
Time(ns)
Rev. 0.5 / Jan. 2005
25