Specifications

PENTIUM® PRO PROCESSOR AT 150, 166, 180, and 200 MHz E
56
3.1 in.
1.5 volts
3.1 in.
1.8 nS/ft.
2.2 nS/ft.
2.2 nS/ft.
0.5 in.
2.2 in.
2.2 in.
3.1 in.
2.2 nS/ft
.
2.2 nS/ft
.
2.2 nS/ft
.
A5
2.2 in.
2.2 nS/ft
.
2.2 in.
2.2 nS/ft.
72 ohms
72 ohms
72 ohms
72 ohms
72 ohms
72 ohms
72 ohms
72 ohms
2 pF
1.5 volts
42 ohms
1.8nS/ft.
0.5 in.
72 ohms
0.9 in.
2.4 nS/ft.
50 ohms
0.25 in.
2.4 nS/ft.
50 ohms
0.25 in.
42 ohms 2 pF
4 pF
4 pF
6.5 pF
6.5 pF 6.5 pF
6.5 pF
4 pF
4 pF
2.4 nS/ft.
50 ohms
0.25 in.
2.4 nS/ft.
50 ohms
0.25 in.
2.1nS/ft.
40 ohms
0.07 in.
1.4nS/ft.
66 ohms
0.105 in.
2.1nS/ft.
40 ohms
0.07 in.
1.4nS/ft.
66 ohms
0.105 in.
2.1nS/ft.
40 ohms
0.07 in.
1.4nS/ft.
66 ohms
0.105 in.
2.1nS/ft.
40 ohms
0.07 in.
1.4nS/ft.
66 ohms
0.105 in.
0.9 in.
0.9 in.
0.9 in.
0.9 in.
0.9 in.0.9 in.
0.9 in.
1.02 nS/ft.
200 ohms
0.10 in.
1.02 nS/ft.
200 ohms
0.10 in.
1.02 nS/ft.
200 ohms
0.10 in.
1.02 nS/ft.
200 ohms
0.10 in.
2.4nS/ft.
75 ohms
2.4nS/ft.
75 ohms
2.4nS/ft.
75 ohms
2.4nS/ft.
75 ohms
3.08nS/ft.
42 ohms
3.08nS/ft.
42 ohms
3.08nS/ft.
42 ohms
3.08nS/ft.
42 ohms
REF8N Topology:
Place ASIC driver
to be tested here
Replace with ASIC pkg model
Figure 36. Ref8N Topology
4.4.1. Ref8N HSPICE Netlist
$REF8N, Rev 1.1
Vpu vpu GND DC(vtt)
rterm PU1 vpu (R=42) $ Pull-up termination resistance
crterm PU1 vpu 2PF $ Pull-up termination capacitance
TPU PU1 0 line1 0 Z0=72 TD=.075NS $ PCB link from terminator to load 1
X1 line1 load1 socket $ Socket model
T1 load1 0 load1a 0 Z0=42 TD=230PS $ CPU package model
T2 load1a 0 CPU_1 0 Z0=200 TD=8.5PS $ Bondwire
CCPU_1 CPU_1 0 4PF $ CPU input capacitance
T3 line1 0 line2 0 Z0=72 TD=568PS $ PCB trace between packages
x2 line2 load2 socket $ Socket model
T4 load2 0 load2a 0 Z0=42 TD= 230ps $ CPU worst case package