Intel Itanium 2 Processor manual 0513

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				Pulse Duration (ns)
Maximum (V)
Over-	Under-	AF = 11	AF = 0.75	AF = 0.5	AF = 0.25	AF = 0.1	AF = 0.05	AF = 0.01
shoot	shoot
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	5	5	5	5
1.6	–0.4	4.0947	5	5	5	5	5	5
1.55	–0.35	5	5	5	5	5	5	5
1.5	–0.3	5	5	5	5	5	5	5

NOTES:

1. Activity Factor = 1 means signal toggles every 10 ns.

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				Pulse Duration (ns)
Maximum (V)
Over-	Under-	AF = 11	AF = 0.75	AF = 0.5	AF = 0.25	AF = 0.1	AF = 0.05	AF = 0.01
shoot	shoot
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

NOTES:

1. Activity Factor = 1 means signal toggles every 7.5 ns.

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				Pulse Duration (ns)
Maximum (V)
Over-	Under-	AF = 11	AF = 0.75	AF = 0.5	AF = 0.25	AF = 0.1	AF = 0.05	AF = 0.01
shoot	shoot
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	3	3	3	3

Datasheet 29