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參數(shù)資料
| 型號： | MPC5603PGF0MLQ6R |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 64 MHz, MICROCONTROLLER, QFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, LQFP-144 |
| 文件頁數(shù)： | 30/82頁 |
| 文件大?。?/td> | 1613K |
| 代理商： | MPC5603PGF0MLQ6R |
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MPC5604P Microcontroller Data Sheet, Rev. 6.1
Freescale Semiconductor
36
3.7
Power Up/Down Sequencing
The MPC5604P implements a precise sequence to ensure each module is started only when all conditions for switching it ON
are available. This prevents overstress event or miss-functionality within and outside the device:
a POWER_ON module working on voltage regulator supply is controlling the correct start-up of the regulator. This is
a key module ensuring safe configuration for all Voltage regulator functionality when supply is below 1.5V. Associated
POWER_ON (or POR) signal is active low.
Several Low Voltage Detectors, working on voltage regulator supply are monitoring the voltage of the critical modules
(Voltage regulator, I/Os, Flash and Low voltage domain). LVDs are gated low when POWER_ON is active.
a POWER_OK signal is generated when all critical supplies monitored by the LVD are available. This signal is active
high and released to all modules including I/Os, Flash and RC16 oscillator needed during power-up phase and reset
phase. When POWER_OK is low the associated module are set into a safe state.
Figure 10. Power-up typical sequence
VIOLVDM5OK_H
P
I/O 5V low voltage detector high threshold
—
4.4
V
VIOLVDM5OK_L
P
I/O 5V low voltage detector low threshold
—
3.8
—
V
VMLVDDOK_H
P
Digital supply low voltage detector high
—
1.14
V
VMLVDDOK_L
P
Digital supply low voltage detector low
—
1.08
—
V
1 V
DD = 3.3V ± 10% / 5.0V ± 10%, TA = –40 °C to TA MAX, unless otherwise specified
Table 14. Low voltage monitor electrical characteristics
Symbol
Parameter
Conditions1
Value
Unit
Min
Max
VDD_HV_REG
0V
3.3V
0V
3.3V
VDD_LV_REGCOR
0V
1.2V
0V
3.3V
POWER_ON
LVDM (HV)
0V
LVDD (LV)
3.3V
0V
POWER_OK
3.3V
RC16MHz Oscillator
0V
1.2V
P0
P1
0V
1.2V
Internal Reset Generation Module
FSM
~1us
VPOR_UP
VPORH
VLVDHV3H
VMLVDOK_H
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