Lenovo 59P5107 Datasheet Page 47

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Low Voltage Intel
®
Xeon
Processor at 1.60 GHz, 2.0 GHz and 2.4 GHz
Datasheet 47
1.45 -0.15 10.00 10.00 10.00
1.40 -0.10 10.00 10.00 10.00
1.35 -0.05 10.00 10.00 10.00
Table 24. Common Clock (400 MHz) AGTL+ Signal Group
Overshoot/Undershoot Tolerance
Absolute
Maximum
Overshoot (V)
Absolute
Maximum
Undershoot (V)
Pulse Duration (ns)
AF = 1
Pulse Duration
(ns) AF = 0.1
Pulse Duration (ns)
AF = 0.01
1.70 -0.40 1.68 16.72 20.00
1.65 -0.35 5.00 20.00 20.00
1.60 -0.30 14.64 20.00 20.00
1.55 -0.25 20.00 20.00 20.00
1.50 -0.20 20.00 20.00 20.00
1.45 -0.15 20.00 20.00 20.00
1.40 -0.10 20.00 20.00 20.00
1.35 -0.05 20.00 20.00 20.00
NOTES:
1. These specifications are measured at the processor pad.
2. BCLK period is 10 ns.
3. WIRED OR processor signals may tolerate up to 1 V of overshoot/undershoot.
4. AF is referenced to BCLK[1:0]
Table 25. 400 MHz Asynchronous GTL+, PWRGOOD, and TAP Signal Groups
Overshoot/Undershoot Tolerance (Sheet 1 of 2)
Absolute
Maximum
Overshoot (V)
Absolute
Maximum
Undershoot (V)
Pulse Duration (ns)
AF = 1
Pulse Duration
(ns) AF = 0.1
Pulse Duration (ns)
AF = 0.01
1.70 -0.40 5.04 50.16 60.00
1.65 -0.35 14.99 60.00 60.00
1.60 -0.30 43.92 60.00 60.00
1.55 -0.25 60.00 60.00 60.00
1.50 -0.20 60.00 60.00 60.00
NOTES:
1. These specifications are measured at the processor pad.
2. These signals are assumed in a 33 MHz time domain.
Table 23. Source Synchronous (400 MHz) AGTL+ Signal Group
Overshoot/Undershoot Tolerance
Absolute
Maximum
Overshoot (V)
Absolute
Maximum
Undershoot (V)
Pulse Duration
(ns) AF = 1
Pulse Duration (ns)
AF = 0.1
Pulse Duration (ns)
AF = 0.01
NOTES:
1. These specifications are measured at the processor pad.
2. Assumes a BCLK period of 10 ns.
3. AF is referenced to associated source synchronous strobes.
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