MC9S12E256 Datasheet, PDF (569/602 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Appendix A Electrical Characteristics
A.2 Voltage Regulator
This section describes the characteristics of the on chip voltage regulator.
Num
1
3
Table A-9. Voltage Regulator Electrical Parameters
C
Characteristic
P Input Voltages
P Output Voltage Core
Full Performance Mode
Symbol
Min
Typ
V_VDDR,A
2.97
—
V_DD
2.35
2.5
Max
Unit
5.5
V
2.75
V
4
P Output Voltage PLL
Full Performance Mode
V_DDPLL
2.35
2.5
2.75
V
5
P Low Voltage Interrupt¹
Assert Level
Deassert Level
V_LVIA
V_LVID
4.0
4.37
4.66
V
4.15
4.52
4.77
V
6
P Low Voltage Reset²
Assert Level
Deassert Level
V_LVRA
2.25
—
—
V
V_LVRD
—
—
2.55
V
7
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. VLVRA and VPORD must overlap}
3 _{Monitors VDD. Active in all modes.}
MC9S12E256 Data Sheet, Rev. 1.08
Freescale Semiconductor
569