Datasheet

52 Datasheet
Pentium
®
III Processor for the PGA370 Socket at 500 MHz to 1.13 GHz
NOTES:
1. BCLK period is 7.5 ns.
2. Measurements taken at the processor socket pins on the solder-side of the motherboard.
NOTES:
1. PICCLK period is 30 ns.
2. Measurements taken at the processor socket pins on the solder-side of the motherboard.
Table 26. 133 MHz AGTL+/AGTL Signal Group Overshoot/Undershoot Tolerance
1, 2
Overshoot/Undershoot
Magnitude
Maximum Pulse Duration at Tj = 80
°C (ns)
Maximum Pulse Duration at Tj = 85 °C
(ns)
AF = 0.01 AF = 0.1 AF = 1 AF = 0.01 AF = 0.1 AF = 1
2.18 V 15 1.9 0.19 14 1.4 0.14
2.13 V 15 3.7 0.37 15 2.4 0.24
2.08 V 15 6.8 0.68 15 4.6 0.46
2.03 V 15 12.5 1.25 15 8.6 0.84
1.98 V 15 15 2.28 15 15 1.5
1.93 V 15 15 4.1 15 15 5
1.88 V 15 15 7.5 15 15 15
Table 27. 33 MHz CMOS Signal Group Overshoot/Undershoot Tolerance at Processor Pins
1, 2
Overshoot/
Undershoot
Magnitude
Maximum Pulse Duration at Tj = 80 °C
(ns)
Maximum Pulse Duration at Tj = 85 °C
(ns)
AF=0.01 AF=0.1 AF=1 AF=0.01 AF=0.1 AF=1
2.18 V 60 7.6 0.76 56 5.6 0.56
2.13 V 60 14.8 1.48 60 9.6 0.96
2.08 V 60 27.2 2.7 60 18.4 1.8
2.03 V 60 50 5 60 33 3.3
1.98 V 60 60 9.1 60 60 6
1.93 V 60 60 16.4 60 60 20
1.88V 606030606060