參數(shù)資料
型號(hào)： MB90P553APF
元件分類(lèi)： 微控制器/微處理器
英文描述： 16-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 26/61頁(yè)
文件大?。?/td> 687K
代理商： MB90P553APF
MB90550A/550B Series
32
(Continued)
Use within recommended operating conditions.
Use at DC voltae (current) .
The +B signal should always be applied with a limiting resistance placed between the +B signal and the
microcontroller.
The value of the limiting resistance should be set to so that when the +B signal is applied the input current
to the microcontroller pin does not exceed rated values, either instantaneously or for prolonged periods.
Note that when the microcontroller drive current is low, such as in the power saving modes, the +B input
potential may pass through the protective diode and increase the potential at the VCC pin, and this may
affect other devices.
Note that if a +B signal is input when the microcontroller current is off (not fixed at 0 V) , the power supply
is provided from the pins, so that incomplete operation may result.
Note that is the +B input is applied during power-on, the power supply is provided from the pins and resulting
supply voltage may not be sufficient to operate the power-on reset.
Care must be taken not to leave the +B input pin open.
Note that analog system input/output pins other than the A/D input pins (LCD drive pins, comparator input
pins, etc.) cannot accept
+B signal input.
Sample recommended circuits :
Note: Average output current = operating current
× operating efficiency
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
P-ch
N-ch
VCC
R
+B input (0 V to 16 V)
Limiting
resistance
Protective diode
Input/output equivalent circuits
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