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80C188EB датащи(PDF) 22 Page - Intel Corporation |
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80C188EB датащи(HTML) 22 Page - Intel Corporation |
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22 / 59 page ![]() 80C186EB80C188EB 80L186EB80L188EB PACKAGE THERMAL SPECIFICATIONS The 80C186EB80L186EB is specified for operation when TC (the case temperature) is within the range of b40 Cto a100 C (PLCC package) or b40 Cto a 114 C (QFP package) TC may be measured in any environment to determine whether the proces- sor is within the specified operating range The case temperature must be measured at the center of the top surface TA (the ambient temperature) can be calculated from iCA (thermal resistance from the case to ambi- ent) with the following equation TA e TC b P iCA Typical values for iCA at various airflows are given in Table 10 P (the maximum power consumption specified in watts) is calculated by using the maxi- mum ICC as tabulated in the DC specifications and VCC of 55V Table 10 Thermal Resistance (iCA) at Various Airflows (in CWatt) Airflow Linear ftmin (msec) 0 200 400 600 800 1000 (0) (101) (203) (304) (406) (507) iCA (PLCC) 30 24 21 19 17 165 iCA (QFP) 58 47 43 40 38 36 iCA (SQFP) 70 TBD TBD TBD TBD TBD 22 |
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