收藏本站
参数资料
型号： RH80532NC021256
厂商： INTEL CORP
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 1500 MHz, MICROPROCESSOR, CPGA478
封装： MICRO, FLIP CHIP, PGA-478
文件页数： 44/91页
文件大小： 1142K
代理商： RH80532NC021256
Datasheet
49
FSB Signal Quality Specifications
3.3
FSB Signal Quality Specifications and Measurement
Guidelines
3.3.1
Overshoot/Undershoot Guidelines
Overshoot (or undershoot) is the absolute value of the maximum voltage above the nominal high
voltage (or below VSS) as shown in Figure 28. The overshoot guideline limits transitions beyond
VCC or VSS due to the fast signal edge rates. The processor can be damaged by repeated overshoot
or undershoot events on any input, output, or I/O buffer if the charge is large enough (i.e., if the
over/undershoot is great enough). Determining the impact of an overshoot/undershoot condition
requires knowledge of the magnitude, the pulse direction, and the activity factor (AF). Permanent
damage to the processor is the likely result of excessive overshoot/undershoot.
When performing simulations to determine impact of overshoot and undershoot, ESD diodes must
be properly characterized. ESD protection diodes do not act as voltage clamps and will not provide
overshoot or undershoot protection. ESD diodes modelled within Intel I/O buffer models do not
clamp undershoot or overshoot and will yield correct simulation results. If other I/O buffer models
are being used to characterize the mobile Celeron processor FSB, care must be taken to ensure that
ESD models do not clamp extreme voltage levels. Intel I/O buffer models also contain I/O
capacitance characterization. Therefore, removing the ESD diodes from an I/O buffer model will
impact results and may yield excessive overshoot/undershoot.
3.3.2
Overshoot/Undershoot Magnitude
Magnitude describes the maximum potential difference between a signal and its voltage reference
level. For the mobile Celeron processor both are referenced to VSS. It is important to note that
overshoot and undershoot conditions are separate and their impact must be determined
independently.
Overshoot/undershoot magnitude levels must observe the absolute maximum specifications listed
in Table 28 through Table 31. These specifications must not be violated at any time regardless of
bus activity or system state. Within these specifications are threshold levels that define different
allowed pulse durations. Provided that the magnitude of the overshoot/undershoot is within the
absolute maximum specifications, the pulse magnitude, duration and activity factor must all be
used to determine if the overshoot/undershoot pulse is within specifications.
3.3.3
Overshoot/Undershoot Pulse Duration
Pulse duration describes the total time an overshoot/undershoot event exceeds the overshoot/
undershoot reference voltage (maximum overshoot = 1.700 V, maximum undershoot = -0.400 V).
The total time could encompass several oscillations above the reference voltage. Multiple
overshoot/undershoot pulses within a single overshoot/undershoot event may need to be measured
to determine the total pulse duration.
Note:
Oscillations below the reference voltage can not be subtracted from the total overshoot/undershoot
pulse duration.
相关PDF资料
PDF描述
RH80532GC025512 32-BIT, 1600 MHz, MICROPROCESSOR, CPGA478
RH80532GC021512 32-BIT, 1500 MHz, MICROPROCESSOR, CPGA478
RH80532GC017512 32-BIT, 1400 MHz, MICROPROCESSOR, CPGA478
RH80536GE0362M 1860 MHz, MICROPROCESSOR, CPGA478
BX80536GE1733FJ 1730 MHz, MICROPROCESSOR, CPGA478
相关代理商/技术参数
参数描述
RH80532NC025256 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microprocessor
RH80532NC029256 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microprocessor
RH80532NC033256 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microprocessor
RH80532NC049256 制造商:Rochester Electronics LLC 功能描述:- Bulk
RH80532NC049256S L8SB 制造商:Intel 功能描述:INTEL CELERON PROCESSOR AVAILABLE AT 1.60 GHZ, 1.8 GHZ, 2.00 GHZ, 2.2 GHZ
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*