Intel Itanium 2 Processor User Manual Page 29

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Datasheet 29
Electrical Specifications
Table 2-19. Itanium
®
2 Processors (1.5 GHz/4 MB, 1.6 GHz) Wired-OR Signal Group (BINIT#,
HIT#, HITM#, BNR#, TND#, BERR#) Overshoot/Undershoot Tolerance for 400 MHz
System Bus
Absolute
Maximum (V)
Pulse Duration (ns)
Over-
shoot
Under-
shoot
AF = 1
1
NOTES:
1. Activity Factor = 1 means signal toggles every 10 ns.
AF = 0.75 AF = 0.5 AF = 0.25 AF = 0.1 AF = 0.05 AF = 0.01
1.8 –0.6 0.0513 0.0685 0.1026 0.2054 0.5129 1.0258 5
1.75 –0.55 0.1547 0.2059 0.3088 0.6192 1.5458 3.0902 5
1.7 –0.5 0.4640 0.6191 0.9265 1.8536 4.6313 5 5
1.65 –0.45 1.3836 1.8410 2.7641 5555
1.60.44.0947555555
1.550.355555555
1.50.35555555
Table 2-20. Itanium
®
2 (9 MB) Processors Wired-OR Signal Group (BINIT#, HIT#, HITM#, BNR#,
TND#, BERR#) Overshoot/Undershoot Tolerance for 533 MHz System Bus
Absolute
Maximum (V)
Pulse Duration (ns)
Over-
shoot
Under-
shoot
AF = 1
1
NOTES:
1. Activity Factor = 1 means signal toggles every 7.5 ns.
AF = 0.75 AF = 0.5 AF = 0.25 AF = 0.1 AF = 0.05 AF = 0.01
1.8 –0.6 0.0385 0.0513 0.0770 0.1541 0.3853 0.7690 3.75
1.75 –0.55 0.1161 0.1548 0.2317 0.4641 1.1593 2.3177 3.75
1.7 –0.5 0.3473 0.4643 0.6945 1.3895 3.4738 3.75 3.75
1.65 –0.45 1.0365 1.3801 2.0731 3.75 3.75 3.75 3.75
1.6 –0.4 3.0710 3.75 3.75 3.75 3.75 3.75 3.75
1.55 -0.35 3.75 3.75 3.75 3.75 3.75 3.75 3.75
1.5 –0.3 3.75 3.75 3.75 3.75 3.75 3.75 3.75
Table 2-21. Itanium
®
2 (1.66 GHz) Processors Wired-OR Signal Group (BINIT#, HIT#, HITM#,
BNR#, TND#, BERR#) Overshoot/Undershoot Tolerance for 667 MHz System Bus
(Sheet 1 of 2)
Absolute
Maximum (V)
Pulse Duration (ns)
Over-
shoot
Under-
shoot
AF = 1
1
AF = 0.75 AF = 0.5 AF = 0.25 AF = 0.1 AF = 0.05 AF = 0.01
1.8 –0.6 0.0308 0.0411 0.0615 0.1231 0.3079 0.6167 3
1.75 –0.55 0.0928 0.1237 0.1855 0.3706 0.9291 1.8546 3
1.7 –0.5 0.2780 0.3714 0.5568 1.1136 2.7783 3 3
1.65 –0.45 0.8288 1.1056 1.6585 3333
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