2.80 GHz – 3.40 GHz Frequencies Supporting Hyper-Threading
Technology1 for All Frequencies with 800 MHz Front Side Bus
February 2005
Document Number: 300561-003
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RELATING T O FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PA TENT, COPYRIGHT OR OTHER
INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “un defined.” Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.
®
The Intel
from published specifications. Current characterized errata are available on request.
Pentium® 4 processor on 90 nm process may contain design defects or errors known as errata which may cause the product to deviate
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
1
Hyper-Threading Technology requires a computer system with an Intel® Pentium® 4 processor supporting HT Technology and a Hyper-Threading
Technology enabled chipset, BIOS and operating system. Performance will vary depending on the specific hardware and software you use.
See http://www.intel.com/info/hyperthreading/
Intel, Pentium, Intel NetBurst, and the Intel logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States
and other countries.
for more information including details on which processors support HT Technology.
31Fan Heatsink Power and Signal Specifications...................................................79
32Boxed Processor Fan Heatsink Set Points .........................................................81
.
6Datasheet
Revision History
RevisionDescriptionDate
-001• Initial releaseFebruary 2004
-002• Added specifications for 3.20 GHz processors with PRB = 1
• Added ISGNT/ISLP specifications
• Updated thermal diode specifications
• Other changes marked with change bars
-003• Added specifications for 3.40 GHz processors with PRB = 0February 2005
April 2004
§
Datasheet7
Intel® Pentium® 4 Processor on 90 nm
Process 2.80A/E GHz, 3E GHz, 3.20E
GHz, and 3.40E GHz
• Available at 2.80A/E GHz, 3E GHz,
3.20E GHz, and 3.40E GHz
• Supports Hyper-Threading Technology
(HT Technology) for all frequencies with
800 MHz front side bus (FSB)
1
• Binary compatible with applications
running on previous members of the Intel
microprocessor line
• Intel NetBurst
®
microarchitecture
• FSB frequencies at 533 MHz, and
800 MHz
• Hyper-Pipelined Technology
—Advance Dynamic Execution
—Very deep out-of-order execution
• Enhanced branch prediction
• Optimized for 32-bit applications running
on advanced 32-bit operating systems
• 478-Pin Package
§
• 16-KB Level 1 data cache
• 1-MB Advanced Transfer Cache (on-die,
full-speed Level 2 (L2) cache) with 8-way
associativity and Error Correcting Code
(ECC)
• 144 Streaming SIMD Extensions 2
(SSE2) instructions
• 13 Streaming SIMD Extensions 3 (SSE3)
instructions
• Enhanced floating point and multimedia
unit for enhanced video, audio,
encryption, and 3D performance
• Power Management capabilities
—System Management mode
—Multiple low-power states
• 8-way cache associativity provides
improved cache hit rate on load/store
operations
8Datasheet
1Introduction
Introduction
The Intel® Pentium® 4 processor on 90 nm process is a follow on to the Intel® Pentium® 4
processor in the 478-pin package with enhancements to the Intel NetBurst
Pentium 4 processor on 90 nm process uses Flip-Chip Pin Grid Array (FC-mPGA4) package
technology, and plugs into a 478-pin surface mount, Zero Insertion Force (ZIF) socket, referred to
as the mPGA478B socket. The Pentium 4 processor on 90 nm process, like its predecessor, the
Pentium 4 processor in the 478-pin package, is based on the same Intel 32-bit microarchitecture
and maintains the tradition of compatibility with IA-32 software.
Note:In this document the Pentium 4 processor on 90 nm process is also referred to as the processor.
The Pentium 4 processor on 90 nm process supports Hyper-Threading Technology
Threading Technology allows a single, physical processor to function as two logical processors.
While some execution resources (such as caches, execution units, and buses) are shared, each
logical processor has its own architecture state with its own set of general-purpose registers,
control registers to provide increased system responsiveness in multitasking environments, and
headroom for next generation multithreaded applications. Intel recommends enabling HyperThreading Technology with Microsoft Wind ows* XP Profession al or Windows* XP Home, and
disabling Hyper-Threading Technology via the BIOS for all previous versions of Windows
operating systems. For more information on Hyper-Threading Technology, see www.intel.com/
info/hyperthreading. Refer to Section 6.1, for Hyper-Threading Technology configuration details.
In addition to supporting all the existing Streaming SIMD Extensions 2 (SSE2), there are 13 new
instructions that further extend the capabilities of Intel processor technology. These new
instructions are called Streaming SIMD Extensions 3 (SSE3).These new instructions enhance the
performance of optimized applications for the digital home such as video, image processing and
media compression technology. 3D graphics and other entertainment applications (such as gaming)
will have the opportunity to take advantage of these new instructions as platforms with the Pentium
4 processor on 90 nm process and SSE3 become available in the market place.
®
microarchitecture. The
1
. Hyper-
The processor’s Intel NetBurst microarchitecture front side bus (FSB) uses a split-transaction,
deferred reply protocol like the Pentium 4 processor. The Intel NetBurst microarchitecture FSB
uses Source-Synchronous Transfer (SST) of address and data to improve performance by
transferring data four times per bus clock (4X data transfer rate, as in AGP 4X). Along with the 4X
data bus, the address bus can deliver addresses two times per bus clock and is referred to as a
"double-clocked" or 2X address bus. Working together, the 4X data bus and 2X address bus
provide a data bus bandwidth of up to 6.4 GB/s.
Intel will enable support components for the processor including heatsink, heatsink retention
mechanism, and socket. Manufacturability is a high priority; hence, mechanical assembly may be
completed from the top of the baseboard and should not require any special tooling.
The processor includes an address bus powerdown capability that removes power from the address
and data pins when the FSB is not in use. This feature is always enabled on the processor.
Datasheet9
Introduction
1.1Terminology
A ‘#’ symbol after a signal name refers to an active low signal, indicating a signal is in the active
state when driven to a low level. For example, when RESET# is low, a reset has been requested.
Conversely, when NMI is high, a nonmaskable interrupt has occurred. In the case of signals where
the name does not imply an active state but describes part of a binary sequence (such as address or
data), the ‘#’ symbol implies that the signal is inverted. For example, D[3:0] = ‘HLHL’ refers to a
hex ‘A’, and D[3:0]# = ‘LHLH’ also refers to a hex ‘A’ (H= High logic lev el, L= Low logic level).
“FSB” refers to the interface between the processor and system core logic (i.e., the chipset
components). The FSB is a multiprocessing interface to processors, memory, and I/O.
1.1.1Processor Packaging Terminology
Commonly used terms are explained here for clarification:
• Intel
• Processor — For this document, the term processor is the generic form of the Pentium 4
• Keep-out zone — The area on or near the processor that system design cannot use.
• Intel
• Intel
• Processor core — Processor core die with integrated L2 cache.
• FC-mPGA4package — The Pentium 4 processor on 90 nm process is available in a Flip-
®
Pentium® 4 processor on 90 nm process — Processor in the FC-mPGA4 package
with a 1-MB L2 cache.
processor on 90 nm process.
®
865G/865GV/865PE/865P chipset — Chipset that supports DDR memory technology
for the Pentium 4 processor on 90 nm process.
®
875P chipset — Chipset that supports DDR memory technology for the Pentium 4
processor on 90 nm process
Chip Micro Pin Grid Array 4 package, consisting of a processor core mounted on a pinned
substrate with an integrated heat spreader (IHS). This packaging technology employs a
1.27 mm [0.05 in] pitch for the substrate pins.
• mPGA478B socket — The Pentium 4 processor on 90 nm process mates with the system
board through a surface mount, 478-pin, zero insertion force (ZIF) socket.
• Integrated heat spreader (IHS) —A component of the processor package used to enhance
the thermal performance of the package. Component thermal solutions interface with the
processor at the IHS surface.
• Retention mechanism (RM)—Since the mPGA478B socket does not include any mechanical
features for heatsink attach, a retention mechanism is required. Component thermal solutions
should attach to the processor via a retention mechanism that is independent of the socket.
• Storage conditions — Refers to a non-operational state. The processor may be installed in a
platform, in a tray, or loose. Processors may be sealed in packaging or exposed to free air.
Under these conditions, processor pins should not be connected to any supply voltages, hav e
any I/Os biased, or receive any clocks. Upon exposure to “free air”(i.e. unsealed packaging or
a device removed from packaging material) the processor must handled in accordance with
moisture sensitivity labeling (MSL) as indicated on the packaging material.
• Functional operation — Refers to normal operating conditions in which all processor
specifications, including DC, AC, FSB, signal quality, mechanical and thermal, are satisfied.
10Datasheet
1.2References
Material and concepts available in the following documents may be beneficial when reading this
document.
For clean on-chip power distribution, the processor has 85 VCC (power) and 179 VSS (ground)
pins. All power pins must be connected to V
ground plane.The processor VCC pins must be supplied by the voltage determined by the VID
(Voltage identification) pins.
2.2Decoupling Guidelines
Due to its large number of transistors and high internal clock speeds, the processor is capable of
generating large current swings between low and full power states. This may cause voltages on
power planes to sag below their minimum values if bulk decoupling is not adequate. Care must be
taken in the board design to ensure that the voltage provided to the processor remains within the
specifications listed in Table 9. Failure to do so can result in timing violations or reduced lifetime
of the component. For further information and design guidelin es, refer to the appropriate platform
design guide, and the Voltage Regulator-Down (VRD) 10.0 Design Guidelines for Desktop Socket
478.
, while all VSS pins must be connected to a system
CC
Electrical Specifications
2.2.1V
Decoupling
CC
Regulator solutions need to provide bulk capacitance with a low Effective Series Resistance (ESR)
and keep a low interconnect resistance from the regulator to the socket. Bulk decoupling for the
large current swings when the part is powering on, or entering/exiting low power states, must be
provided by the voltage regulator solution (VR). For more details on this topic, refer to the
appropriate platform design guide
for Desktop Socket 478.
, and the Voltage Regulator-Down (VRD) 10.0 Design Guidelines
2.2.2FSB GTL+ Decoupling
The processor integrates signal termination on the die as well as incorporating high frequency
decoupling capacitance on the processor package. Decoupling must also be provided by the system
baseboard for proper GTL+ bus operation. For more information, refer to the appropriate platform
design guide.
Datasheet13
Electrical Specifications
2.2.3FSB Clock (BCLK[1:0]) and Processor Clocking
BCLK[1:0] directly controls the FSB interface speed as well as the core frequency of the processor .
As in previous generation processors, the processor core frequency is a multiple of the BCLK[1:0]
frequency. No user intervention is necessary, and the processor will automatically run at the speed
indicated on the package. The processor uses a differential clocking implementation.
Table 2. Core Frequency to FSB Multiplier Configuration
1.Individual processors operate only at or below the rated frequency.
Core Frequency
(133 MHz BCLK/533 MHz FSB)
2.3Voltage Identification
The VID specification for the processor is supported by the Voltage Regulator-Down (VRD) 10.0
Design Guidelines for Desktop Socket 478. The voltage set by the VID pins is the maximum
voltage allowed by the processor. A minimum voltage is provided in Table 9 and changes with
frequency. This allows processors running at a higher frequency to have a relaxed minimum
voltage specification. The specifications have been set such that one voltage regulator can work
with all supported frequencies.
Core Frequency
(200 MHz BCLK/800 MHz FSB)
Notes
1
1
1
1
1
1
Individual processor VID values may be calibrated during manufacturing such that two devices at
the same speed may have different VID settings.
The processor uses six voltage identification pins, VID[5:0], to support automatic selection of
power supply voltages. Table 3 specifies the voltage level corresponding to the state of VID[5:0].
A ‘1’ in this table refers to a high voltage level and a ‘0’ refers to low voltage level. If the processor
socket is empty (VID[5:0] = x11111), or the voltage regulation circuit cannot supply the voltage
that is requested, it must disable itself. See the Voltage Regulator-Down (VRD) 10.0 Design Guidelines for Desktop Socket 478 for more details.
Power source characteristics must be guaranteed to be stable when the supply to the voltage
regulator is stable.
The processor’s Voltage Identification circuit requires an independent 1.2 V supply and some other
power sequencing considerations.
silicon. Since these PLLs are analog, they require low noise power supplies for minimum jitter.
Jitter is detrimental to the system: it degrades external I/O timings as well as internal core timings
(i.e., maximum frequency). To prevent this degradation, these supplies must be low pass filtered
from V
CC
.
are power sources required by the PLL clock generators on the processor
The AC low-pass requirements, with input at V
• < 0.2 dB gain in pass band
• < 0.5 dB attenuation in pass band < 1 Hz
• > 34 dB attenuation from 1 MHz to 66 MHz
• > 28 dB attenuation from 66 MHz to core frequency
The filter requirements are illustrated in Figure 1. For recommendations on implementing the filter,
2. No specification exists for frequencies beyond fcore (core frequency).
3. fpeak, if existent, should be less than 0.05 MHz.
16Datasheet
High
Frequency
Band
2.4Reserved, Unused, and TESTHI Pins
All RESERVED pins must remain unconnected. Connection of these pins to VCC, VSS, or to any
other signal (including each other) can result in component malfunction or incompatibility with
future processors. See Chapter 4 for a pin listing of the processor and the location of all
RESERVED pins.
For reliable operation, always connect unused inputs or bidirectional sign als to an appropriate
signal level. In a system level design, on-die termination has been included on the processor to
allow signals to be terminated within the processor silicon. Most unused GTL+ inputs should be
left as no connects since GTL+ termination is provided on the processor silicon. However, see
Table 5 for details on GTL+ signals that do not include on-die termination. Unused active high
inputs should be connected through a resistor to ground (V
unconnected; however, this may interfere with some test access port (TAP) functions, complicate
debug probing, and prevent boundary scan testing. A resistor must be used when tying
bidirectional signals to power or ground. When tying any signal to power or ground, a resistor will
also allow for system testability. For unused GTL+ input or I/O signals, use pull-up resistors of the
same value as the on-die termination resistors (R
TAP, Asynchronous GTL+ inputs, and Asynchronous GTL+ outputs do not include on-die
termination. Inputs and used outputs must be terminated on the system board. Unused outputs may
be terminated on the system board or left unconnected. Note that leaving unused outputs
unterminated may interfere with some TAP functions, complicate debug probing, and prevent
boundary scan testing. Signal termination for these signal types is discussed in the appropriate
platform design guide.
).
TT
). Unused outputs can be left
SS
Electrical Specifications
The TESTHI pins must be tied to the processor V
resistor has a resistance value within ±20% of the impedance of the board transmission line traces.
For example, if the trace impedance is 60 Ω, then a value between 48 Ω and 72 Ω is required.
The TESTHI pins may use individual pull-up resistors or be grouped together as detailed below . A
matched resistor must be used for each group:
using a matched resistor, where a matched
CC
• TESTHI[1:0]
• TESTHI[7:2]
• TESTHI8 – cannot be grouped with other TESTHI signals
• TESTHI9 – cannot be grouped with other TESTHI signals
• TESTHI10 – cannot be grouped with other TESTHI signals
• TESTHI11 – cannot be grouped with other TESTHI signals
• TESTHI12 – cannot be grouped with other TESTHI signals
Datasheet17
Electrical Specifications
2.5FSB Signal Groups
The FSB signals have been combined into groups by buffer type. GTL+ input signals have
differential input buffers that use GTLREF as a reference level. In this document, the term "GTL+
Input" refers to the GTL+ input group as well as the GTL+ I/O group when receiving. Similarly,
"GTL+ Output" refers to the GTL+ output group as well as the GTL+ I/O group when driving.
With the implementation of a source synchronous data bus comes the need to specify two sets of
timing parameters. One set is for common clock signals that are dependent on the rising edge of
BCLK0 (ADS#, HIT#, HITM#, etc.) and the second set is for the source synchronous signals that
are relative to their respective strobe lines (data and address) as well as the rising edge of BCLK0.
Asychronous signals are still present (A20M#, IGNNE#, etc.) and can become active at any time
during the clock cycle. Table 4 identifies which signals are common clock, source synchronous,
and asynchronous.
Table 4. FSB Pin Groups
Signal GroupTypeSignals
GTL+ Common Clock
Input
GTL+ Common Clock I/O
GTL+ Source
Synchronous I/O
GTL+ Strobes
Asynchronous GTL+
Input
Asynchronous GTL+
Output
Asynchronous GTL+
Input/Output
TAP InputSynchronous to TCK TCK, TDI, TMS, TRST#
TAP OutputSynchronous to TCK TDO
FSB ClockClockBCLK[1:0], ITP_CLK[1:0]
Power/Other
NOTES:
1.Refer to Section 4.2 for signal descriptions.
2.The value of these pins during the active-to-inactive edge of RESET# defines the processor configuration
options. See Section 6.1 for details.
3.In processor systems where there is no debug port implemented on the system board, these signals are used
to support a debug port interposer. In systems with the debug port implemented on the system board, these
signals are no connects.
Legacy input signals (such as A20M#, IGNNE#, INIT#, SMI#, SLP#, and STPCLK#) use CMOS
input buffers. All of these signals follow the same DC requirements as G TL+ signals; however, the
outputs are not actively driven high (during a logical 0-to-1 transition) by the processor. These
signals do not have setup or hold time specifications in relation to BCLK[1:0].
2.7Test Access Port (TAP) Connection
Due to the voltage levels supported by other components in the Test Access Port (TAP) logic, it is
recommended that the processor be first in the TAP chain and followed by any other components
within the system. A translation buffer should be used to connect to the rest of the chain unless one
of the other components is capable of accepting an input of the appropriate voltage level. Similar
considerations must be made for TCK, TMS, TRST#, TDI, and TDO. Tw o copies of each signal
may be required, with each driving a different voltage level.
Datasheet19
Electrical Specifications
2.8FSB Frequency Select Signals (BSEL[1:0])
The BSEL[1:0] signals are used to select the frequency of the processor input clock (BCLK[1:0]).
Table 7 defines the possible combinations of the signals and the frequency associated with each
combination. The required frequency is determined by the processor, chipset, and clock
synthesizer. All agents must operate at the same frequency.
The processor operates at a 533 MHz or 80 0 MHz FSB frequency (selected by a 133 MHz or
200 MHz BCLK[1:0] frequency). Individual processors will only operate at their specified FSB
frequency.
For more information about these pins, refer to Section 4.2 and the appropriate platform design
guide.
Table 7. BSEL[1:0] Frequency Table for BCLK[1:0]
BSEL1BSEL0Function
LLRESERVED
LH133 MHz
HL200 MHz
HHRESERVED
20Datasheet
Electrical Specifications
2.9Absolute Maximum and Minimum Ratings
Table 8 specifies absolut e m aximum and minimum ratings. Within functional operation limits,
functionality and long-term reliability can be expected.
At conditions outside functional operation condition limits, but within absolute maximum and
minimum ratings, neither functionality nor long-term reliability can be expected. If a device is
returned to conditions within functional operation limits after having been subjected to conditions
outside these limits, but within the absolute max im u m and minimum ratings, the device may be
functional, but with its lifetime degraded depending on exposure to conditions exceeding the
functional operation condition limits.
At conditions exceeding absolute maximum and minimum ratings, neither functionality nor longterm reliability can be expected. Moreover, if a device is subjected to these conditions for any
length of time then, when returned to conditions within the functional operating condition limits, it
will either not function, or its reliability will be severely degraded.
Although the processor contains protective circuitry to resist damage from static electric discharge,
precautions should always be taken to avoid high static voltages or electric fields.
Table 8. Processo r DC Absolute Maximum Ratings
SymbolParameterMinMax UnitNotes
V
CC
T
C
TSTORAGEProcessor storage temperature –40 +85°C
NOTES:
1. For functional operation, all processor electrical, signal quality, mechanical, and thermal specifications must
be satisfied.
2. Storage temperature is applicable to storage conditions only. In this scenario, the processor must not receive
a clock, and no lands can be connected to a voltage bias. Storage within these limits will not affect the longterm reliability of the device. For functional operation, refer to the processor case temperature specifications.
3. This rating applies to the processor and does not include any tray or packaging.
Any processor supply voltage with
respect to V
Processor case temperatureSee Section 5See Section 5°C
SS
2.10Processor DC Specifications
The processor DC speci fications in this sectio n ar e de fined at th e pr oc essor co r e sili con and not
at the package pins unless noted otherwise. See Chapter 4 for the pin signal definitions and signal
pin assignments. Most of the signals on the processor FSB are in the GTL+ signal group. The DC
specifications for these signals are listed in Table 12.
Previously, legacy signals and Test Access Port (TAP) signals to the processor used low-voltage
CMOS buffer types. However, these interfaces now follow DC specifications similar to GTL+. The
DC specifications for these signal groups are listed in Table 13 and Table 14.
Table 9 through Table 17 list the DC specifications for the processor and are valid only while
meeting specifications for case temperature, clock frequency, and input voltages. Care should be
taken to read all notes associated with each parameter.
- 0.31.55V
1
2, 3
2, 3
MSR_PLATFORM_BRV bit 18 is a Platform Requirement Bit (PRB) that indicates that the
processor has specific platform requirements.
Datasheet21
Electrical Specifications
Table 9. Voltage and Current Specifications
SymbolParameterMinTypMaxUnitNotes
VID rangeVID1.2501.400V
VCC Loadline A processors
V
CC
3.20E GHz (PRB = 1)
3.40E GHz (PRB = 1)
See Table 10 and
Figure 2
VID – I
(max) * 1.45 mΩV
CC
VCC Loadline B processors
2.80A/E GHz (PRB = 0)
V
CC
3E GHz (PRB = 0)
3.20E GHz (PRB = 0)
See Table 11 and
Figure 3
VID – I
(max) * 1.45 mΩV
CC
3.40E GHz (PRB = 0)
I
for processor with multiple VID:
CC
I
CC
I
SGNT
I
SLP
I
TCC
I
CC_VCCA
I
CC_VCCIOPLL
I
CC_GTLREF
I
CC_VCCVID/
VCCVIDLB
2.80A/E GHz (PRB = 0)
3E GHz (PRB = 0)
3.20E GHz (PRB = 0)
3.40E GHz (PRB = 0)
3.20E GHz (PRB = 1)
3.40E GHz (PRB = 1)
I
Stop-Grant:
CC
2.80A/E GHz (PRB = 0)
3E GHz (PRB = 0)
3.20E GHz (PRB = 0)
3.40E GHz (PRB = 0)
3.20E GHz (PRB = 1)
3.40E GHz (PRB = 1)
ICC TCC activeI
ICC for PLL pins60mA
ICC for I/O PLL pin60mA
ICC for GTLREF pins (all pins)200µA
ICC for V
CCVID/VCCVIDLB
78
78
78
A
78
91
91
40
40
40
A
40
50
50
CC
A
150mA
NOTES:
1.Unless otherwise noted, all specifications in this table are based on estimates and simulations or empirical data.
2.Individual processor VID values may be calibrated during manufacturing such that two devices at the same speed may ha ve
different VID settings.
3.These voltages are targets only. A variable voltage source shoul d exist on systems in the event that a different voltage is required. See Section 2.3 and Table3 for more information.
4.The voltage specification requirements are measured across VCC_SENSE and VSS_SENSE pins at the socket with a
100 MHz bandwidth oscilloscope, 1.5 pF maximum probe capacitance, and 1 MΩ minimum impedance. The maximum length
of ground wire on the probe should be less than 5 mm. Ensure external noise from the system is not coupled into the oscilloscope probe.
5.Refer to Table 10/Figure 2 or Table 11/Figure 3 for the minimum, typical, and maximum V
processor should not be subjected to any V
V
should never exceed the VID voltage. Failure to adhere to this specification can shorten the processor lifetime.
CC
6.I
7.The current specified is also for the AutoHALT State.
8.I
9.The maximum instantaneous current the processor will draw while the thermal control circuit is active as indicated by the as-
is specified at V
CC_MAX
Stop-Grant and ICC Sleep are specified at V
CC
CC_MAX
sertion of PROCHOT# is the same as the maximum I
and ICC combination wherein VCC exceeds V
CC
.
CC_MAX
for the processor.
CC
allowed for a given current. The
CC
for a given current. Moreover,
CC_MAX
1
2
3,4,5
3,4,5
6
7,8,10
9
10
10
10
22Datasheet
10. These parameters are based on design characterization and are not tested.
Table 10. VCC Static and Transient Tolerance for Loadline A
1.The loadline specification includes both static and transient limits except for overshoot allowed as shown in
Section 2.11.
2.This table is intended to aid in reading discrete points on Figure 2.
3.The loadlines specify voltage limits at the die measured at the VCC_SENSE and VSS_SENSE pins. V oltage
regulation feedback for voltage regulator circuits must be taken from processor VCC and VSS pins. Refer
to the Voltage Regulator-Down (VRD) 10.0 Design Guide for socket loadline guidelines and VR implementation details for 478_VR_CONFIG_A.
Electrical Specifications
1,2,3
Datasheet23
Electrical Specifications
0
Figure 2. VCC Static and Transient Tolerance for Loadline A
05101520253035404550556065707580859
VID - 0.000
Vcc
Icc [A]
VID - 0.038
VID - 0.076
VID - 0.114
Vcc [V]
Maximum
Vcc
VID - 0.152
Typical
Vcc
Minimum
VID - 0.190
VID - 0.228
NOTES:
1. The loadline specification includes both static and transient limits except for overshoot allowed as shown in
Section 2.11.
2. This loadline specification shows the deviation from the VID set point.
3. The loadlines specify voltage limits at the die measured at the VCC_SENSE and VSS_SENSE pins. V ol t age
regulation feedback for voltage regulator circuits must be taken from processor VCC and VSS pins. Refer to
the Voltage Regulator-Down (VRD) 10.0 Design Guide for socket loadline guidelines and VR implementation
details for 478_VR_CONFIG_A.
24Datasheet
Table 11. VCC Static and Transient Tolerance for Loadline B
1.The loadline specification includes both static and transient limits except for overshoot allowed
as shown in Section 2.11.
2.This table is intended to aid in reading discrete points on Figure 3.
3.The loadlines specify voltage limits at the die measured at the VCC_SENSE and VSS_SENSE
pins. Voltage regulation feedback for voltage regulator circuits must be taken from processor
VCC and VSS pins. Refer to the Voltage Regulator-Down (VRD) 10.0 Design Guide for socket
loadline guidelines and VR implementation details for 478_VR_CONFIG_B.
Electrical Specifications
1,2,3
Datasheet25
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