81348 Datasheet, PDF (82/89 Pages) Intel Corporation – Two Integrated Intel XScale processors

Intel^® 81348—Electrical Specifications
Figure 16. DDR2 SDRAM Read Timings
DQS
DQ
T_VB6
T_VA6
Table 32. AC Measurement Conditions
Symbol
PCI-X
PCI
DDR2
PBI
Vth
0.6V_CC3P3
0.6V_CC3P3 M_VREF+0.250 2.0
V_tl
0.25V_CC3P3
0.2V_CC3P3 M_VREF-0.250 0.8
V_test
0.4V_CC3P3
0.4V_CC3P3
0.5V_CC1P8
1.5
V_trise
0.285V_CC3P3 0.285V_CC3P3
0.5V_CC1P8
1.5
V_tfall
0.615V_CC3P3 0.615V_CC3P3
0.5V_CC1P8
1.5
V_max
0.35V_CC3P3
0.4V_CC3P3
1.0
1.2
Slew Rate
1.5
1.5
1.0
1.0
Notes:
1. Input signal slew rate is measured between V_il and V_ih
Units Notes
V
V
V
V
V
V
V/nS 1
Figure 17. _PAHCYTest Load for all Signals Except PCI, PCI-Express and DDR2 and Storage
Output
50 pF
Test
Point
Figure 18. AC Test Load for DDR2 SDRAM Signals
Output
V_TT
25 Ω
Test
Point
DInatteal^®sh8e1et348 ^{I/O Processor}
82
December 2007
Order Number: 315038-003US