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MC9S12G Datasheet, PDF (1078/1160 Pages) Freescale Semiconductor, Inc – Ignores external trigger. Performs one conversion sequence and stops.
Electrical Characteristics
A.1.8 Power Dissipation and Thermal Characteristics
Power dissipation and thermal characteristics are closely related. The user must assure that the maximum
operating junction temperature is not exceeded. The average chip-junction temperature (TJ) in °C can be
obtained from:
TJ = TA + (PD • ΘJA)
TJ = Junction Temperature, [°C ]
TA = Ambient Temperature, [°C ]
PD = Total Chip Power Dissipation, [W]
ΘJA = Package Thermal Resistance, [°C/W]
The total power dissipation can be calculated from:
PD = PINT + PIO
PINT = Chip Internal Power Dissipation, [W]
∑ PIO = i RDSON ⋅ IIOi2
PIO is the sum of all output currents on I/O ports associated with VDDX, whereby
RDSON = V--I--O-O----L-L--;for outputs driven low
RDSON = V-----D----D-----3-I--O5-----H–-----V----O-----H---;for outputs driven high
PINT = IDDR ⋅ VDDR + IDDA ⋅ VDDA
MC9S12G Family Reference Manual, Rev.1.01
1078
Freescale Semiconductor
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.