参数资料
型号: MC9S12B128CFU25
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封装: PLASTIC, QFP-80
文件页数: 8/132页
文件大小: 1842K
代理商: MC9S12B128CFU25
Device User Guide —9S12B128DGV1/D V01.13
105
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-3.
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
VVDDR,A
2.97
5.5
V
3P
Output Voltage Core
Full Performance Mode
Reduced Power Mode
Shutdown Mode
VDD
2.35
1.6
2.5
1
NOTES:
1. High Impedance Output
2.75
V
4P
Output Voltage PLL
Full Performance Mode
Reduced Power Mode2
Reduced Power Mode3
Shutdown Mode
2. Current IDDPLL = 0.5mA (Colpitts Oscillator)
3. Current IDDPLL = 3mA (Pierce Oscillator)
VDDPLL
2.35
1.7
1.4
2.5
4
4. High Impedance Output
2.75
V
7P
Low Voltage Interrupt5
Assert Level
Deassert Level
5. Monitors VDDA, active only in Full Performance Mode. Indicates I/O & ADC performance degradation due to
low supply voltage.
VLVIA
VLVID
4.0
4.15
4.37
4.52
4.66
4.77
V
8P
Low Voltage Reset6
Assert Level
6. Monitors VDD, active only in Full Performance Mode. MCU is monitored by the POR in RPM (see Figure A-3)
VLVRA
2.25
——
V
9C
Power-on Reset7
Assert Level
Deassert Level
7. Monitors VDD. Active in all modes.
VPORA
VPORD
0.97
2.05
V
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