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参数资料
型号： YF80528KC017512
厂商： INTEL CORP
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 1400 MHz, MICROPROCESSOR, CPGA603
封装： MICRO, PGA-603
文件页数： 59/116页
文件大小： 2277K
代理商： YF80528KC017512
Intel XeonTM Processor MP
Datasheet
47
1. Determine the signal group that particular signal falls into. For AGTL+ signals operating in
the 4X source synchronous domain, use Table 23. For AGTL+ signals operating in the 2X
source synchronous domain, use Table 24. If the signal is an AGTL+ signal operating in the
common clock domain, use Table 25. Finally, all other signals reside in the 33 MHz domain
(asynchronous GTL+, TAP, etc.) and are referenced in Table 26.
2. Determine the magnitude of the overshoot or the undershoot (relative to V
SS).
3. Determine the activity factor (how often does this overshoot occur?).
4. Next, from the appropriate specification table, determine the maximum pulse duration (in
nanoseconds) allowed.
5. Compare the specified maximum pulse duration to the signal being measured. If the pulse
duration measured is less than the pulse duration shown in the table, then the signal meets the
specifications.
Undershoot events must be analyzed separately from overshoot events as they are mutually
exclusive.
3.2.7
Determining if a System Meets the Overshoot/Undershoot
Specifications
The overshoot/undershoot specifications listed in the following tables specify the allowable
overshoot/undershoot for a single overshoot/undershoot event. However most systems will have
multiple overshoot and/or undershoot events that each have their own set of parameters (duration,
AF and magnitude). While each overshoot on its own may meet the overshoot specification, when
you add the total impact of all overshoot events, the system may fail. A guideline to ensure a
system passes the overshoot and undershoot specifications is shown below. Results from
simulation may also be evaluated by utilizing the Intel XeonTM Processor Overshoot Checker
Tool through the use of time-voltage data files.
1. Ensure no signal ever exceeds VCC or -0.25V OR
2. If only one overshoot/undershoot event magnitude occurs, ensure it meets the over/undershoot
specifications in the following tables OR
3. If multiple overshoots and/or multiple undershoots occur, measure the worst case pulse
duration for each magnitude and compare the results against the AF = 1 specifications. If all of
these worst case overshoot or undershoot events meet the specifications (measured time <
specifications) in the table (where AF=1), then the system passes.
The following notes apply to Table 23 through Table 26.
NOTES:
1. Absolute Maximum Overshoot magnitude of 2.3V must never be exceeded.
2. Absolute Maximum Overshoot is measured referenced to VSS, Pulse Duration of overshoot is
measured relative to V
CC.
3. Absolute Maximum Undershoot and Pulse Duration of undershoot is measured relative to V
SS.
4. Ringback below VCC cannot be subtracted from overshoots/undershoots.
5. Lesser undershoot does not allocate overshoot with longer duration or greater magnitude.
6. OEM's are strongly encouraged to follow Intel layout guidelines.
7. All values specified by design characterization.
相关PDF资料
PDF描述
YF80528KC025011 32-BIT, 1600 MHz, MICROPROCESSOR, CPGA603
YF80528KC021512 32-BIT, 1500 MHz, MICROPROCESSOR, CPGA603
YF80532KC0211M 1500 MHz, MICROPROCESSOR, CPGA603
YF80532KC0412M 2000 MHz, MICROPROCESSOR, CPGA603
YF80532KC0371M 1900 MHz, MICROPROCESSOR, CPGA603
相关代理商/技术参数
参数描述
YFA014C049ZA 制造商:Panasonic Industrial Company 功能描述:CHASSIS
YFA054C022ZA 制造商:Panasonic Industrial Company 功能描述:COVER
YFAW025 制造商:YEONHO 制造商全称:YEONHO ELECTRONICS 功能描述:Pin Header : 2.5mm PITCH
YFAW025-02 制造商:YEONHO 制造商全称:YEONHO ELECTRONICS 功能描述:Pin Header : 2.5mm PITCH
YFAW025-03 制造商:YEONHO 制造商全称:YEONHO ELECTRONICS 功能描述:Pin Header : 2.5mm PITCH
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