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HSMS-2802

HSMS-2802资料
	HSMS-2802 PDF Download

File Size : 116 KB Manufacturer:HP Description:FAST data sheets carry several types of AC information. The AC Characteristics table contains the guaranteed limits when tested under the conditions set forth under the AC Test Circuits and Waveforms. In some cases, the test conditions are further defined by the AC Setup Conditions this is generally the case with counters and flip-flops where setup and hold times are involved. All of the AC Characteristics are guaranteed with 50pF load capacitances and with the fewest number possible of outputs switching, depending upon the functionality of the device. One of the sets of limits is specified at 25C and +5.00V VCC these relate closely to the standard Schottky specification which are under similar conditions but use only 15pF load capacitances. While these numbers are convenient for comparing the two families, keep in mind that using full 50pF loads with the Schottky devices would add several nanoseconds to their propagation delays. These numbers are ideal for checking out test jigs and correlating data since they do not involve temperature or supply voltage spreads. For system design, full specifications are included that include temperature and supply voltage variations in one case the military ranges and in the other, the commercial ranges.