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參數資料
| 型號： | MB89P175APF |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 7.16 MHz, MICROCONTROLLER, PQFP48 |
| 封裝： | PLASTIC, QFP-48 |
| 文件頁數： | 5/50頁 |
| 文件大?。?/td> | 626K |
| 代理商： | MB89P175APF |
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13
MB89170/170A/170L Series
s HANDLING DEVICES
1. Preventing Latchup
Latchup may occur on CMOS ICs if voltage higher than VCC or lower than VSS is applied to input and output pins
other than medium- and high-voltage pins or if higher than the voltage which shows on “1. Absolute Maximum
Ratings” in “s Electrical Characteristics” is applied between VCC to VSS.
When latchup occurs, power supply current increases rapidly and might thermally damaged elements. When
using, take great care not to exceed the absolute maximum ratings.
2. Treatment of Unused Input Pins
Leaving unused input pins open could cause malfunctions. They should be connected to a pull-up or pull-down
registor.
3. Treatment of N.C. Pins
Be sure to leave (internally connected) N.C. pins open.
4. Power Supply Voltage Fluctuations
Although operating is assured within the rated range of VCC power supply voltage, a rapid fluctuation of the
voltage could cause malfunctions, even if it occurs within the rated range. Stabilizing voltage supplied to the IC
is therefore important. As stabilization guidelines, it is recommended to control power so that VCC ripple
fluctuations (P-P value) will be less than 10% of the standard VCC value at the commercial frequency (50 to 60
Hz) and the transient fluctuation rate will be less than 0.1 V/ms at the time of a momentary fluctuation such as
when power is switched.
5. Precautions when Using an External Clock
When an external clock is used, oscillation stabilization time is required even for power-on reset (optional) and
wake-up from stop mode.
6. Turning on the supply voltage (only for the MB89P175A)
Power on sharply up to the option enabling voltage (2 V) within 13 clock cycles after starting of oscillation.
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相關代理商/技術參數 |
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|---|---|
| MB89P185 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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| MB89P185PF-103 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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