參數(shù)資料
型號(hào)： MPC5603PEFMLL
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, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, LQFP-100
文件頁(yè)數(shù)： 30/84頁(yè)
文件大?。?/td> 1663K
代理商： MPC5603PEFMLL
MPC5604P Microcontroller Data Sheet, Rev. 5
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
36
LVDHV3 monitors VDD to ensure device reset below minimum functional supply
LVDHV5 monitors VDD when application uses device in the 5.0V ± 10% range
LVDLVCOR monitors low voltage digital power domain
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.
Table 15. Low voltage monitor electrical characteristics
Symbol
Parameter
Conditions1
1 V
DD = 3.3V ± 10% / 5.0V ± 10%, TA = –40 to 125°C, unless otherwise specified
Value
Unit
Min
Max
VPORH
T
Power-on reset threshold
—
1.5
2.7
V
VPORUP
P
Supply for functional POR module
TA = 25°C
1.0
—
V
VREGLVDMOK_H
P
Regulator low voltage detector high threshold
—
2.95
V
VREGLVDMOK_L
P
Regulator low voltage detector low threshold
—
2.6
—
V
VFLLVDMOK_H
P
Flash low voltage detector high threshold
—
2.95
V
VFLLVDMOK_L
P
Flash low voltage detector low threshold
—
2.6
—
V
VIOLVDMOK_H
P
I/O low voltage detector high threshold
—
2.95
V
VIOLVDMOK_L
P
I/O low voltage detector low threshold
—
2.6
—
V
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
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