參數(shù)資料
型號(hào): Embedded Pentium 233
廠商: Intel Corp.
英文描述: 32 BIT Embedded Pentium Processor with MMX Technology(32位嵌入式帶MMX技術(shù)奔騰處理器)
中文描述: 32位嵌入式MMX技術(shù)(32位嵌入式帶MMX公司的技術(shù)奔騰處理器Pentium處理器)
文件頁(yè)數(shù): 32/46頁(yè)
文件大?。?/td> 944K
代理商: EMBEDDED PENTIUM 233
Pentium
Processor with MMX Technology
32
Datasheet
3.0
Electrical Specifications
This section describes the electrical differences between the Pentium processor with MMX
technology and the Pentium processor, and the AC and DC specifications of the Pentium processor
with MMX technology.
3.1
Electrical Characteristics
When creating a Pentium processor with MMX technology design based on an existing Pentium
processor design, there are a number of electrical differences that require attention. The following
sections highlight key electrical issues pertaining to the Pentium processor with MMX technology
power supplies, connection specifications and buffer models.
Note that it is possible to design a single motherboard that supports more than one member of the
Pentium processor family. Refer to
Pentium
Processor Flexible Motherboard Design Guidelines
(order number 243187) for more information and specific implementation examples.
3.1.1
Power Supplies
The main electrical difference between the Pentium processor with MMX technology and the
Pentium processor is the operating voltage. The Pentium processor with MMX technology requires
two separate voltage inputs, V
CC2
and V
CC3
. The V
CC2
pins supply power to the Pentium
processor with MMX technology core, while the V
CC3
pins supply power to the processor I/O pins.
The Pentium processor, on the other hand, requires a single voltage supply for all V
CC
pins. This
single supply powers both the core and I/O pins of the Pentium processor.
By connecting all the V
CC2
pins together and all the V
CC3
pins together on separate power islands,
Pentium processor designs can easily be converted to support the Pentium processor with MMX
technology. In order to maintain compatibility with Pentium processor-based platforms, the
Pentium processor with MMX technology supports the standard 3.3-V specification on its V
CC3
pins.
3.1.2
Power Supply Sequencing
There is no specific power sequence required for powering up or powering down the separate V
CC2
and V
CC3
supplies of the Pentium processor with MMX technology. It is recommended that the
V
CC2
and V
CC3
supplies be turned on or off within one second of each other.
3.1.3
Connection Specifications
Connection specifications for the power and ground inputs, 3.3-V inputs and outputs, and the
NC/INC and unused inputs are discussed in the following sections.
相關(guān)PDF資料
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