Datasheet

Supply Voltage Sequencing and Separation Cautions
56F826 Technical Data, Rev. 14
Freescale Semiconductor 23
Figure 3-1 Maximum Run IDD vs. Frequency (see Note 6. in Table 3-4)
3.3 Supply Voltage Sequencing and Separation Cautions
Figure 3-2 shows two situations to avoid in sequencing the V
DD
and V
DDIO,
V
DDA
supplies.
Notes: 1. V
DD
rising before V
DDIO
, V
DDA
2. V
DDIO
, V
DDA
rising much faster than V
DD
Figure 3-2 Supply Voltage Sequencing and Separation Cautions
0
25
75
100
50
20
40
60
80
Freq. (MHz)
IDD (mA)
IDD Digital
IDD Analog
IDD Total
3.3V
2.5V
Time
0
2
1
Supplies Stable
V
DD
V
DDIO,
V
DDA
DC Power Supply Voltage