mpc5644a Freescale Semiconductor, Inc, mpc5644a Datasheet - Page 84

• Manufacturer Part Number: mpc5644a
• Description: Mpc5644a Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Electrical characteristics
3.7
There is no power sequencing required among power sources during power up and power down, in order to operate within
specification.
Although there are no power up/down sequencing requirements to prevent issues such as latch-up or excessive current spikes
the state of the I/O pins during power up/down varies according to
with medium, slow, and multi-voltage pads.
3.8
84
V
V
SS
V
V
V
V
DDE-EH
V
V
DDEH
RC33
INDC
DDE
– V
DDA
Symbol
DD
Power up/down sequencing
DC electrical specifications
SSA
Table 19. Power sequence pin states (medium, slow, and multi-voltage pads)
SR
SR
SR
SR
SR
SR
SR
SR
V
V
V
V
LOW
V
V
V
LOW
DDEH
DDEH
DDEH
DDE
DDE
DDE
DDE
C
P
P
P
P
P
P
C
D
Core supply voltage
I/O supply voltage
I/O supply voltage
I/O supply voltage
3.3 V regulated
voltage
Analog supply voltage
Analog input voltage
V
voltage
SS
Table 18. Power sequence pin states (fast pads)
differential
Parameter
Preliminary—Subject to Change Without Notice
MPC5644A Microcontroller Data Sheet, Rev. 4
2
Table 20. DC electrical specifications
V
V
V
LOW
RC33
RC33
RC33
X
LOW
V
V
X
DD
DD
Conditions
LOW
V
V
—
—
—
—
—
—
—
—
X
X
DD
DD
Table 18
HIGH IMPEDANCE
V
for all pins with fast pads, and
SSA
4.75
–100
FUNCTIONAL
1.14
1.62
min
3.0
3.0
3.0
Pad State
-0.3
3
LOW
HIGH IMPEDANCE
1
FUNCTIONAL
Pad State
HIGH
Value
LOW
typ
—
—
—
—
Freescale Semiconductor
V
DDA
max
1.32
5.25
5.25
5.25
100
3.6
3.6
Table 19
+0.3
for all pins
Unit
mV
V
V
V
V
V
V
V