參數(shù)資料
型號: Embedded Pentium 266
廠商: Intel Corp.
英文描述: Low-Power Embedded Pentium Processor with MMX Technology(低能量嵌入式帶MMX技術(shù)奔騰處理器)
中文描述: 低功耗嵌入式處理器奔騰MMX技術(shù)(低能量嵌入式帶MMX公司的技術(shù)奔騰處理器)
文件頁數(shù): 54/62頁
文件大?。?/td> 1130K
代理商: EMBEDDED PENTIUM 266
Low-Power Embedded Pentium
Processor with MMX Technology
54
Advance Information Datasheet
4.4
I/O Buffer Models
This section describes the I/O buffer models of the low-power embedded Pentium processor with
MMX technology.
The first order I/O buffer model is a simplified representation of the complex input and output
buffers used. Figure 20 shows the structure of the input buffer model and Figure 21 shows the
output buffer model. Table 26 and 27 show the parameters used to specify these models.
Although simplified, these buffer models will accurately model flight time and signal quality. For
these parameters, there is very little added accuracy in a complete transistor model.
In addition to the input and output buffer parameters, input protection diode models are provided
for added accuracy. These diodes have been optimized to provide ESD protection and provide
some level of clamping. Although the diodes are not required for simulation, it may be more
difficult to meet specifications without them.
Note, however, some signal quality specifications require that the diodes be removed from the
input model. The series resistors (R
S
) are a part of the diode model. Remove these when removing
the diodes from the input model.
Figure 20. First Order Input Buffer Model
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