MC9S12T64 Datasheet, PDF (566/608 Pages) Motorola, Inc – Specification

Freescale Semiconductor, Inc.
Electrical Characteristics
Θ_JA = Package Thermal Resistance, [°C/W]
The total power dissipation can be calculated from:
PD = PINT + PIO
PINT = Chip Internal Power Dissipation, [W]
Two cases with internal voltage regulator enabled and disabled must be
considered:
1. Internal Voltage Regulator disabled
PINT = IDD ⋅ VDD + IDDPLL ⋅ VDDPLL + IDDA ⋅ VDDA
∑ ^{PIO =} _i ^{RDSON ⋅ IIOi2}
P_IO is the sum of all output currents on I/O ports associated with
VDDX and VDDR.
For R_DSON is valid:
RDSON
=
V--I--O-O----L-L- _{;for outputs driven low}
respectively
RDSON = ^{V-----D----D----I-5-O----–}-H---V-----O-----H-- ;for outputs driven high
2. Internal voltage regulator enabled
PINT = IDDR ⋅ VDDR + IDDA ⋅ VDDA
I_DDR is the current shown in Table 109 and not the overall current
flowing into VDDR, which additionally contains the current flowing
into the external loads with output high.
∑ ^{PIO =} _i ^{RDSON ⋅ IIOi2}
P_IO is the sum of all output currents on I/O ports associated with
VDDX and VDDR.
MC9S12T64Revision 1.1.1
Electrical Characteristics
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