MC68340FE16E Datasheet, PDF (398/441 Pages) Freescale Semiconductor, Inc – Integrated Processor with DMA User’s Manual

Freescale Semiconductor, Inc.
10.3.1 MC68340 Power Reduction at 5V
The following figures show how different variables affect typical power consumption at
5 V. Figure 10-15 shows how system activity affects current drain. Figure 10-16 shows
how voltage affects current drain at some typical operating temperatures. Figure 10-17
shows how system clock frequency affects current drain.
120
90
93
Typical values
32KHz xtal
16.78 MHz
24° C
81
73
60
66
62
42
30
0
INITIALIZATION MAX
CURRENT
SERIAL
OFF
+TIMER 1
OFF
+TIMER 2
OFF
+DMA
OFF
Figure 10-15. MC68340 Current vs. Activity at 5 V
.06
+LPSTOP
MOTOROLA
MC68340 USER’S MANUAL
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10-11