Intel Pentium 4 User Manual

I/O Controller Hub 2
R
Intel
®
Pentium
®
4 Processor / Intel
®
850 Chipset Family Platform Design Guide 179
9.9.4.6.1 Termination Plane Capacitance
It is recommended that the termination plane capacitance equal a minimum value of 1500 pF. This
helps reduce the amount of crosstalk on the differential pairs (TDP/TDN and RDP/RDN) from the
unused pairs of the RJ45. Pads may be placed for an additional capacitance to chassis ground,
which may be required if the termplane capacitance is not large enough to pass EFT (Electrical
Fast Transient) testing. If a discrete capacitor is used, to meet the EFT requirements it should be
rated for at least 1000 Vac.
Figure 127. Termination Plane
N/C
RJ-45
Magnetics module
RDP
RDN
TDP
TDN
Termination plane
Additional capacitance that may be
required for EFT testing
LAN_term_plane

Intel Pentium 4 Specifications

General

Architecture	x86
Core Count	1
Microarchitecture	NetBurst
Manufacturer	Intel
Core Names	Willamette, Northwood, Prescott, Cedar Mill
Virtualization Technology	No
Release Date	November 20, 2000
Clock Speed	1.3 GHz to 3.8 GHz
FSB Speed	400 MHz to 1066 MHz
Socket	Socket 423, Socket 478, LGA 775
Introduced	2000
Product Line	Pentium
Front Side Bus	400 MHz to 1066 MHz
Hyper-Threading	Yes (Prescott and later)
64-bit Support	Yes (Prescott and later)
Instruction Set	MMX, SSE, SSE2, SSE3
Discontinued	2008
Process Technology	180 nm, 130 nm, 90 nm, 65 nm
L2 Cache	256 KB, 512 KB, 1 MB, 2 MB
Lithography	180 nm, 130 nm, 90 nm, 65 nm
L1 Cache	8 KB