80960HD datasheet(29/102 Pages) INTEL

Part #	80960HD

Description	80960HA/HD/HT 32-Bit High-Performance Superscalar Processor

PDF	102 Pages

Scroll/Zoom	100%

Manufacturer	INTEL [Intel Corporation]

Direct Link	http://www.intel.com

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29 / 102 page

80960HA/HD/HT

Advance Information Datasheet

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

80960HD Datasheet(PDF) 29 Page - Intel Corporation