Intel Pentium 4 User Manual

Layout Review Checklist
R
Intel
®
Pentium
®
4 Processor / Intel
®
850 Chipset Family Platform Design Guide 279
16.3.3 V
term
Layout
√ Recommendations Reason/Impact
• Solid V
TERM
island is on top routing layer; do
not split this plane
• Ground island (for ground side of V
TERM
capacitors) is on top routing layer
• Termination resistors connect directly to the
V
TERM
island on the top routing layer
(without vias)
• Resistor packs are acceptable; however,
discrete resistors are recommended for
increase margin and control.
• Refer to Section 6.1.3.
• Decoupling capacitors connect to top layer
V
TERM
island and top routing layer ground
island directly.
• Use at least 2 vias per decoupling capacitor
in the top layer ground island.
• Use 2x100 µF Tantalum capacitors to
decouple V
TERM
.
• Refer to Section 6.1.3.
• Hi-frequency decoupling capacitors must be
spread-out across the termination island so
that all termination resistors are near high
frequency capacitors.
• Refer to Section 6.1.3.
• 100 µF Tantalum capacitor should be at
each end of the V
TERM
island.
• Refer to Section 6.1.3.
• 100 µF Tantalum capacitors must be
connected to the V
TERM
island directly
• Refer to Section 6.1.3.
• 100 µF Tantalum capacitors must have at
least 2 vias/capacitor to ground.
• V
TERM
island should be at least 50 mils wide • Refer to Section 6.1.3

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