MC9S12K Datasheet, PDF (94/126 Pages) Freescale Semiconductor, Inc – Microcontrollers

Device User Guide — 9S12KT256DGV1/D V01.09
A.2 Voltage Regulator (VREG_3V3) Operating Characteristics
This section describes the characteristics of the on chip voltage regulator.
Num C
Table A-9 VREG_3V3 - Operating Conditions
Characteristic
Symbol
Min Typical Max Unit
1
P Input Voltages
V_VDDR,A
3.15
—
5.5
V
Regulator Current
2
P
Reduced Power Mode
Shutdown Mode
I_REG
—
20
50
µA
—
12
40
µA
Output Voltage Core
Full Performance Mode
3
P
Reduced Power Mode
Shutdown Mode¹
V_DD
2.35
2.5
1.7
2.5
2.75
V
2.75
V
—
—
—
V
Output Voltage PLL
Full Performance Mode
4
P
Reduced Power Mode²
Shutdown Mode⁽¹⁾
V_DDPLL
2.35
1.7
2.5
2.5
2.75
V
2.75
V
—
—
—
V
Low Voltage Interrupt³
5
P
Assert Level
Deassert Level
V_LVIA
V_LVID
4.1
4.37
4.25
4.52
4.66
V
4.77
V
Low Voltage Reset⁴
5
P
Assert Level
Deassert Level
V_LVRA
2.25
—
—
V
V_LVRD
—
—
2.55
V
Power-on Reset⁵
7
C
Assert Level
Deassert Level
V_PORA
0.97
---
—
V
V_PORD
—
---
2.05
V
NOTES:
1. High Impedance Output
2. Current IDDPLL = 500µA
3. Monitors V_DDA, active only in Full Performance Mode. Indicates I/O & ADC performance degradation due to
low supply voltage.
4. Monitors V_DD, active only in Full Performance Mode. V_LVRA and V_PORD must overlap
5. Monitors V_DD. 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 Motorola and are subject to change without notice.
94
Freescale Semiconductor