參數(shù)資料
型號: MB91F479BGL-GE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PBGA144
封裝: 12 X 12 MM, 1.45 MM HEIGHT, 0.80 MM PITCH, PLASTIC, FBGA-144
文件頁數(shù): 19/92頁
文件大?。?/td> 2431K
代理商: MB91F479BGL-GE1
MB91470/480 Series
26
DS07-16901-5E
Notes upon power-on sequence
It requires more than 600
s (between 0.0 V to 5.0 V) to rise voltage upon power on in order to prevent the
device malfunction caused by the overshooting in the built-in voltage step-down circuit.
After the supply voltage is stable (voltage is risen) , it takes 600
s until internal supply is stable. Hold the input
to the INITX pin during that period.
If it takes less than 600
s (between 0.0 V to 5.0 V) for power up, it requires 2 ms* until internal supply is stable
after voltage supply is stable (voltage is risen) . Hold the input to the INITX pin during that period.
* : In case of which it takes less than 600
s (between 0.0 V to 5.0 V) to rise voltage, the time to make internal
power supply stable is proportional to the capacitance value of the bypass capacitor for the pin C.
It takes 2 ms if the pin C = 4.7
F ; 4 ms if the pin C = 9.4 F.
CASE : voltage rising time is more than 600
s (0.0 V to 5.0 V)
CASE : voltage rising time is less than 600
s (0.0 V to 5.0 V)
V
CC
(V)
5.0
0
t
600 (
s)
INITX
Power-on
Start operating
Internal power supply
waits until stable
Hold for more than 600
s
V
CC
(V)
5.0
0
t
600 (
s)
INITX
Power-on
Start operating
Internal power supply
waits until stable
Hold for more than 2 ms*
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