參數(shù)資料
型號(hào)： MB91F492PMC-GE1
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 12 X 12 MM, 1.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, LQFP-64
文件頁數(shù)： 7/60頁
文件大?。?/td> 1628K
代理商： MB91F492PMC-GE1
MB91490 Series
DS07-16912-1E
15
Notes upon power-on sequence
It requires more than 600
μs (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
μs until internal supply is stable. Hold the input
to the INITX pin during that period.
If it takes less than 600
μs (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
μs (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
μF; 4 ms if the pin C = 9.4 μF.
CASE : voltage rising time is more than 600
μs (0.0 V to 5.0 V)
CASE : voltage rising time is less than 600
μs (0.0 V to 5.0 V)
V
CC
(V)
5.0
0
t
600 (
μs)
INITX
Power-on
Start operating
Internal power supply
waits until stable
Hold for more than 600
μs
V
CC
(V)
5.0
0
t
600 (
μs)
INITX
Power-on
Start operating
Internal power supply
waits until stable
Hold for more than 2 ms*
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