General
7.3.6 EMC radiated emissions operating behaviors
Table 10. EMC radiated emissions operating behaviors for
Symbol
Description
Frequency
band (MHz)
Typ.
Unit
Notes
VRE1
VRE2
Radiated emissions voltage, band 1
Radiated emissions voltage, band 2
Radiated emissions voltage, band 3
Radiated emissions voltage, band 4
IEC level
0.15–50
50–150
dBμV
dBμV
dBμV
dBμV
—
1 , 2
VRE3
150–500
500–1000
0.15–1000
VRE4
VRE_IEC
2, 3
1. Determined according to IEC Standard 61967-1, Integrated Circuits - Measurement of Electromagnetic Emissions, 150
kHz to 1 GHz Part 1: General Conditions and Definitions and IEC Standard 61967-2, Integrated Circuits - Measurement of
Electromagnetic Emissions, 150 kHz to 1 GHz Part 2: Measurement of Radiated Emissions—TEM Cell and Wideband
TEM Cell Method. Measurements were made while the microcontroller was running basic application code. The reported
emission level is the value of the maximum measured emission, rounded up to the next whole number, from among the
measured orientations in each frequency range.
2. VDD = 3.3 V, TA = 25 °C, fOSC = 12 MHz (crystal), fSYS = MHz, fBUS = MHz
3. Specified according to Annex D of IEC Standard 61967-2, Measurement of Radiated Emissions—TEM Cell and Wideband
TEM Cell Method
7.3.7 Designing with radiated emissions in mind
To find application notes that provide guidance on designing your system to minimize
interference from radiated emissions:
1. Go to www.freescale.com.
2. Perform a keyword search for “EMC design.”
7.3.8 Capacitance attributes
Table 11. Capacitance attributes
Description
Symbol
CIN
Min.
—
Typ.
10
Max.
—
Unit
pF
Input capacitance
Output capacitance
COUT
—
10
—
pF
7.4 Switching specifications
MC56F8455x Advance Information Data Sheet, Rev. 2, 06/2012.
Freescale Semiconductor, Inc.
31
Preliminary
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