mpc5644a Freescale Semiconductor, Inc, mpc5644a Datasheet - Page 82

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

Electrical characteristics
3.6.1
82
1
2
3
4
5
6
8a
8b
8c
8d
9a
9b
9c
ID
9
1
2
3
Using external ballast transistor.
Min range is extended to 10% since Lvi1p2 is reprogrammed from 1.2 V to 1.16 V after power-on reset.
LVI for falling supply is calculated as LVI rising – LVI hysteresis.
Lvi1p2 tracks DC target variation of internal Vdd regulator. Minimum and maximum Lvi1p2 correspond to minimum
and maximum Vdd DC target respectively.
Minimum loading (<10 mA) for reading trim values from flash, powering internal RC oscillator, and IO consumption
during POR.
Lvi3p3 tracks DC target variation of internal Vdd33 regulator. Minimum and maximum Lvi3p3 correspond to
minimum and maximum Vdd33 DC target respectively.
I
BETA represents the worst-case external transistor. It is measured on a per-part basis and calculated as
(I
Refer to
VRCCTL
DD
I
Symbol
VRCCTL
BETA
Lvi5p0_h
Por5V_r
Por5V_f

Voltage regulator controller (V
—
—
—
—
—
I
VRCCTL
is measured at the following conditions: V
Name
Table 49
2
1
).
CC C Nominal POR for rising 5 V
CC C Nominal POR for falling 5 V
CC C Variation of LVI for rising 5 V
CC C Variation of LVI for rising 5 V
CC C Trimming step LVI 5 V
CC C LVI 5 V hysteresis
CC C Variation of POR for rising
CC C Variation of POR for falling
Current can be sourced by V
Required gain at Tj:
I
DD
for the maximum operating frequency.

I
VRCCTL
Table 15. PMC Electrical Characteristics (continued)
V
reset
V
reset
V
5 V V
V
5 V V
DDREG
DDRE
DDREG
DDREG
Preliminary—Subject to Change Without Notice
DDREG
DDREG
MPC5644A Microcontroller Data Sheet, Rev. 4
(@ f
G supply power-on
Table 16. VRC electrical specifications
Parameter
supply at power-on
supply
supply
sys
supply
supply
= f
MAX
Parameter
)
RCCTL
1,3,4
DD
at Tj:
Lvi5p0-6%
Lvi5p0-3%
= 1.35 V, V
Por5V_r
Por5V_f
RC
-35%
-35%
Min
—
—
—
—
) electrical specifications
RC33
– 40
Por5V_r
Por5V_f
150
150
25
25
Lvi5p0
Lvi5p0
Typ
2.6
2.4
60
20
= 3.1 V, V
o
o
o
o
o
C
C
C
C
C
Lvi5p0+6%
Lvi5p0+3%
Por5V_r
Por5V_f
VRCCTL
+50%
+50%
Max
—
—
—
—
Min.
TBD
TBD
TBD
TBD
TBD
= 2.2 V.
V
V
V
V
Unit
mV
mV
V
V
Freescale Semiconductor
Max.
TBD
—
—
—
—
Notes
Units
mA
mA
—
—
—