參數(shù)資料
型號: 9S12B128DGV1
英文描述: 9S12B128 Device Guide
中文描述: 9S12B128設(shè)備指南
文件頁數(shù): 101/128頁
文件大小: 1823K
代理商: 9S12B128DGV1
Device User Guide —9S12B128DGV1/D V01.11
101
A.4 VREG_3V3
A.4.1 Operating Conditions
A.4.2 Chip Power-up and Voltage Drops
VREG_3V3 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
Figure A-2
.
Table A-17 VREG_3V3 - Operating Conditions
Conditions are shown in
Table A-4
unless otherwise noted
Num
C
Characteristic
Symbol
Min
Typical
Max
Unit
1
P
Input Voltages
V
VDDR,A
2.97
5.5
V
3
P
Output Voltage Core
Full Performance Mode
Reduced Power Mode
Shutdown Mode
V
DD
2.35
1.6
2.5
2.5
1
NOTES
:
1. High Impedance Output
2. Current IDDPLL = 0.5mA (Colpitts Oscillator)
3. Current IDDPLL = 3mA (Pierce Oscillator)
4. High Impedance Output
5. Monitors V
DDA
, active only in Full Performance Mode. Indicates I/O & ADC performance degradation due to
low supply voltage.
6. Monitors V
DD
, active only in Full Performance Mode. MCU is monitored by the POR in RPM (see
Figure A-2
)
7. Monitors V
DD
. Active in all modes.
2.75
2.75
V
V
V
4
P
Output Voltage PLL
Full Performance Mode
Reduced Power Mode
2
Reduced Power Mode
3
Shutdown Mode
V
DDPLL
2.35
1.7
1.4
2.5
2.5
2.5
4
2.75
2.75
2.75
V
V
V
7
P
Low Voltage Interrupt
5
Assert Level
Deassert Level
V
LVIA
V
LVID
4.0
4.15
4.37
4.52
4.66
4.77
V
V
8
P
Low Voltage Reset
6
Assert Level
V
LVRA
2.25
V
9
C
Power-on Reset
7
Assert Level
Deassert Level
V
PORA
V
PORD
0.97
2.05
V
V
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