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參數(shù)資料
| 型號： | Pentium OverDrive Processor |
| 廠商： | Intel Corp. |
| 英文描述： | Pentium OverDrive Processor With MMX Technology For Pentium Processor-Based System(帶MMX技術(shù)奔騰超速轉(zhuǎn)動處理器) |
| 中文描述： | 奔騰過驅(qū)動處理器的MMX技術(shù)的Pentium處理器為基礎(chǔ)的系統(tǒng)（帶MMX公司技術(shù)奔騰超速轉(zhuǎn)動處理器） |
| 文件頁數(shù)： | 31/61頁 |
| 文件大?。?/td> | 481K |
| 代理商： | PENTIUM OVERDRIVE PROCESSOR |
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E
Pentium
OverDrive
PROCESSOR WITH MMX
TECHNOLOGY
31
9/8/97 11:55 AM 29060701.DOC
PRELIMINARY
4.0.
BIOS AND SOFTWARE
The Pentium OverDrive processor with MMX
technology is a drop-in replacement for the
respective
original
Pentium
changes are not normally necessary but might be
required. Please call Intel Technical Support hotline if
assistance is required. Pentium OverDrive processor
with MMX technology is 100% backward software
compatible with their respective original Pentium
processors.
processor.
BIOS
5.0.
ELECTRICAL SPECIFICATIONS
This section describes the electrical differences
between the Pentium processor (75-200) and the
Pentium OverDrive processor with MMX technology.
The Pentium OverDrive processor with MMX
technology requires 3.3 volts to power the processor.
The voltage to the socket is 3.3 volt and is converted
by an on-package voltage regulator to the proper
voltage for the processor’s internal core voltage
plane. The internal 3.3 volt I/O plane is powered from
the socket to the processor. The Pentium OverDrive
processor with MMX technology looks like a 3.3 volt
device externally.
5.1.
Power and Ground
For clean on-chip power distribution, the Pentium
OverDrive processor with MMX technology in an
SPGA package has 60 V
CC
(power) and 68 V
SS
(ground) inputs. The 28 V
CC2
pins are connected
internally to a power plane that provides power to the
on-package voltage regulator for the core supply.
The 32 V
CC3
pins are connected internally to a
separate power plane that provides power to the I/O
buffers. Power and ground connections must be
made to all external V
CC
and V
SS
pins of the Pentium
OverDrive processor with MMX technology. On the
circuit board all V
CC
pins must be connected to a
3.3V V
CC
plane. All V
SS
pins must be connected to a
V
SS
plane.
The Pentium OverDrive processor with MMX
technology pinout contains two 5V V
CC
pins (V
CC5
)
used to provide power to the fan/heatsink. These
pins should be connected to +5 volts
±
5% regardless
of the system design.
5.2.
Decoupling Recommendations
Decoupling recommendation for the original Pentium
processor apply to the Pentium OverDrive processor
with MMX technology upgradable systems and
capacitors should be placed near the Pentium
OverDrive processor with MMX technology. The
Pentium OverDrive processor with MMX technology
can cause transient power surges, particularly when
driving
large
capacitive
OverDrive processor with MMX technology are
shipped with adequate decoupling capacitors on the
package to limit transients in excess of Pentium
processors tolerance. It is recommended to follow
the original Pentium processor specification for
decoupling recommendations.
loads.
The
Pentium
5.3.
Other Connection
Recommendations
For reliable operation, always connect unused inputs
to an appropriate signal level. Unused active low
inputs should be connected to V
CC
. Unused active
high inputs should be connected to ground. All NC
pins must remain unconnected.
5.4.
Absolute Maximum Ratings
The tables in this section provide environmental
stress ratings for the Pentium OverDrive processor
with MMX technology. Functional operation at the
absolute maximum and minimum is not implied or
guaranteed. Extended exposure to maximum ratings
may
affect
device
precautions should be taken to avoid high static
voltages and electric fields to prevent static electric
discharge. Stressing the device beyond
“Absolute Maximum Ratings” may cause permanent
damage. The tables contain stress ratings only.
Operation beyond the “Operating Conditions” is not
recommended and extended exposure beyond the
“Operating Conditions” may effect device reliability.
reliability.
Furthermore,
the
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