Datasheet

Hardware Design Considerations
MCF5227x ColdFire
®
Microprocessor Data Sheet, Rev. 8
Freescale Semiconductor 7
3.5 Power Consumption Specifications
All application power consumption data is lab data measured on an M52277EVB running the Freescale Linux BSP.
Figure 5. Power Consumption in Various Applications
All current consumption data is lab data measured on a single device using an evaluation board. Table 4 shows the typical power
consumption in low-power modes. These current measurements are taken after executing a STOP instruction.
Table 3. MCF52277 Application Power Consumption
1
1
All voltage rails at nominal values: IV
DD
= 1.5 V, EV
DD
= 3.3 V, and SDV
DD
= 1.8 V.
Core
Freq.
Idle (LCD
image)
Idle (audio
image)
Button
Demo
Slideshow
Demo
MP3
Playback
USB FS
File Copy
Units
160 MHz
IV
DD
61.4 59.2 84.7 96.5 89.2 89.5
mAEV
DD
28.87 25.73 35.3 34.6 33.46 29.86
SDV
DD
18.8 18.57 21.8 23.9 22.66 22.2
Total Power 221.211 207.135 282.78 301.95 285.006 272.748 mW
Table 4. Current Consumption in Low-Power Modes
1,2
Mode Voltage Supply
System Frequency
80MHz 64MHz 48MHz 32MHz
4MHz
(LIMP
mode)
RUN
IV
DD
(mA) 75.1 62.7 49.2 36.6 3.5
Power (mW) 112.65 94.05 73.80 54.90 5.25
WAIT
IV
DD
(mA) 61.9 52.8 42.0 31.7 2.9
Power (mW) 92.85 79.20 63.00 47.55 4.35
0
50
100
150
200
250
300
350
Idle (LCD
image)
Idle (Audio
Image)
Button
Demo
Slideshow
Demo
MP3
Playback
USB FS
File Copy
Total Power (mW)