HYB18T512400AC5 Datasheet, PDF (91/96 Pages) Infineon Technologies AG – 512-Mbit Double-Data-Rate-Two SDRAM

HYB18T512[400/800/160]A[C/F]–[3.7/5]
512-Mbit Double-Data-Rate-Two SDRAM
Reference Loads, Setup & Hold Timing Definition and Slew Rate Derating
Table 43 Data Setup (t_DS) and Hold Time (t_DH) Derating Table¹⁾²⁾
DQS, DQS Differential Slew Rate
4.0 V/ns 3.0 V/ns 2.0 V/ns 1.8 V/ns
∆ ∆∆ ∆ ∆ ∆ ∆ ∆
t_DS t_DH t_DS t_DH t_DS t_DH t_DS t_DH
1.6 V/ns
∆∆
t_DS t_DH
1.4 V/ns
∆∆
t_DS t_DH
1.2 V/ns
∆∆
t_DS t_DH
1.0 V/ns
∆∆
t_DS t_DH
0.8 V/ns
∆∆
t_DS t_DH
2.0 125 45 125 45 125 45 — — — — — — — — — — — —
1.5 83 21 83 21 83 21 95 33 — — — — — — — — — —
1.0 0 0 0 0 0 0 12 12 24 24 — — — — — — — —
0.9 — — –11 –14 –11 –14 1 –2 13 10 25 22 — — — — — —
0.8 — — — — –25 –31 –13 –19 –1 –7 11 5 23 17 — — — —
0.7 — — — — — — –31 –42 –19 –30 –7 –18 5 –6 17 6 — —
0.6 — — — — — — — — –43 –49 –31 –47 –19 –35 –7 –23 5 –11
0.5 — — — — — — — — — — –74 –89 –62 –77 –50 –65 –38 –53
0.4 — — — — — — — — — — — — –127 –140 –115 –128 –103 –116
1) All units in ps.
2) For all input signals the total _tDS (setup time) and t_DH (hold time) required is calculated by adding the individual datasheet
value to the derating value listed in this table.
8.4
Overshoot and Undershoot Specification
Table 44 AC Overshoot / Undershoot Specification for Address and Control Pins
Parameter
DDR2–400 DDR2–533
Maximum peak amplitude allowed for overshoot area
0.9
0.9
Maximum peak amplitude allowed for undershoot area
0.9
0.9
Maximum overshoot area above V_DD
Maximum undershoot area below V_SS
0.75
0.56
0.75
0.56
Units
V
V
V.ns
V.ns
VDD
Maximum Amplitude
Overshoot Area
VSS
Maximum Amplitude
Undershoot Area
Time (ns)
Figure 74 AC Overshoot / Undershoot Diagram for Address and Control Pins
Data Sheet
91
Rev. 1.13, 2004-05
09112003-SDM9-IQ3P