MC3S12RG128 Datasheet, PDF (522/546 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
A.3 Voltage Regulator Operating Conditions
Table A-14. Voltage Regulator Electrical Parameters
Nu
m
C
Characteristic
Symbol
Min
Typical
Max
Unit
1 P Input Voltages
2 P Output Voltage Core
Full Performance Mode
V_{VDDR, A}
V_DD
2.97
2.35
—
2.54
5.5
V
2.75
V
3 P Output Voltage PLL
Full Performance Mode
V_DDPLL
2.35
2.54
2.75
V
4
P Low Voltage Interrupt¹
Assert Level
Deassert Level
V_LVIA
V_LVID
4.00
4.15
4.37
4.52
4.66
V
4.77
V
5
P Low Voltage Reset²
Assert Level
V_LVRA
2.25
2.35
—
V
6
C Power-on Reset³
Assert Level
Deassert Level
V_PORA
0.97
—
—
V
V_PORD
—
—
2.05
V
1 _{Monitors VDDA, active only in Full Performance Mode. Indicates I/O & ADC performance degradation due to low supply}
voltage.
2 _{Monitors VDD, active only in Full Performance Mode. MCU is monitored by the POR in Reduced Power Mode}
3 _{Monitors VDD. Active in all modes.}
NOTE
The electrical characteristics given in this section are preliminary and
should be used as a guide only. Values in this section cannot be guaranteed
by Freescale and are subject to change without notice.
A.4 Chip Power-up and LVI/LVR graphical explanation
Voltage regulator sub modules LVI (low voltage interrupt), POR (power-on reset) and LVR (low voltage
reset) handle chip power-up or drops of the supply voltage. Their function is described in the VREG3V3
block guide.
MC3S12RG128 Data Sheet, Rev. 1.05
522
Freescale Semiconductor