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MC9S12VR-Family - Data Sheet - Freescale Semiconductor

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A.1.6 Operating Conditions<br />

<strong>MC9S12VR</strong> <strong>Family</strong> Reference Manual, Rev. 2.8<br />

MCU Electrical Specifications<br />

This section describes the operating conditions of the device. Unless otherwise noted those conditions<br />

apply to all the following data.<br />

NOTE<br />

Please refer to the temperature rating of the device with regards to the<br />

ambient temperature T A and the junction temperature T J . For power<br />

dissipation calculations refer to Section A.1.7, “Power Dissipation and<br />

Thermal Characteristics”.<br />

Table A-5. Operating Conditions<br />

Num Rating Symbol Min Typ Max Unit<br />

1 Voltage regulator and LINPHY supply voltage V SUP 3.7 12 40 1<br />

2 High side driver supply voltage V SUPHS 3.7 12 40 1<br />

3 Oscillator f osc 4 — 16 MHz<br />

4 Bus frequency f bus see<br />

Footnote 2<br />

NOTE<br />

Operation is guaranteed when powering down until low voltage reset<br />

assertion.<br />

A.1.7 Power Dissipation and Thermal Characteristics<br />

Power dissipation and thermal characteristics are closely related. The user must assure that the maximum<br />

operating junction temperature is not exceeded. The average chip-junction temperature (T J ) in °C can be<br />

obtained from:<br />

<strong>Freescale</strong> <strong>Semiconductor</strong> 513<br />

V<br />

V<br />

— 25 MHz<br />

5 Operating junction temperature range<br />

Operating ambient temperature range<br />

1<br />

Normal operating range is 6V - 18V. Continous operation at 40V is not allowed. Only Transient Conditions (Load Dump)<br />

single pulse tmax

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