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FC80960HA25SL2GU View Datasheet(PDF) - Intel

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FC80960HA25SL2GU Datasheet PDF : 102 Pages
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80960HA/HD/HT
3.3
Package Thermal Specifications
The 80960Hx is specified for operation when TC (case temperature) is within the range of
0°C–85°C. TC may be measured in any environment to determine whether the 80960Hx is within
the specified operating range. Measure the case temperature at the center of the top surface,
opposite the pins. Refer to Figure 5.
TA (ambient temperature) is calculated from θCA (thermal resistance from case to ambient) using
the equation:
TA = TC – P*θCA
Table 12 shows the maximum TA allowable (without exceeding TC) at various airflows and
operating frequencies (fCLKIN).
Note that TA is greatly improved by attaching fins or a heatsink to the package. P (maximum power
consumption) is calculated by using the typical ICC as tabulated in Section 4.6, “DC
Specifications” on page 32 and VCC of 3.3 V.
Figure 5. Measuring 80960Hx PGA Case Temperature
Measure PGA/PQ4 temperature at
center of top surface
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