MCF51JM64 FREESCALE [Freescale Semiconductor, Inc], MCF51JM64 Datasheet - Page 36

• Manufacturer Part Number: MCF51JM64
• Description: MCF51JM128 ColdFire Microcontroller
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Preliminary Electrical Characteristics
2.15
Electromagnetic compatibility (EMC) performance is highly dependant on the environment in which the MCU resides. Board
design and layout, circuit topology choices, location and characteristics of external components as well as MCU software
operation all play a significant role in EMC performance. The system designer should consult Freescale applications notes such
as AN2321, AN1050, AN1263, AN2764, and AN1259 for advice and guidance specifically targeted at optimizing EMC
performance.
2.15.1
Microcontroller radiated RF emissions are measured from 150 kHz to 1 GHz using the TEM/GTEM Cell method in accordance
with the IEC 61967-2 and SAE J1752/3 standards. The measurement is performed with the microcontroller installed on a
custom EMC evaluation board while running specialized EMC test software. The radiated emissions from the microcontroller
are measured in a TEM cell in two package orientations (North and East). For more detailed information concerning the
evaluation results, conditions and setup, please refer to the EMC Evaluation Report for this device.
36
EMC Performance
VREG Quiescent Current
Radiated Emissions
Vusb33 input with internal Vreg
Regulator operating voltage
Vreg output
Table 22. Internal USB 3.3V Voltage Regulator Characteristics
disabled
MCF51JM128 ColdFire Microcontroller, Rev. 2
Symbol
V
V
V
usb33in
I
regout
VRQ
regin
Unit
mA
V
V
V
Min
3.9
—
3
3
Typ
3.3
3.3
0.5
—
Freescale Semiconductor
Max
5.5
3.6
3.6
—