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參數(shù)資料
| 型號(hào)： | MB89997PF |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CONV DC-DC 24V IN 5/3.3V OUT 40W |
| 中文描述： | 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | PLASTIC, SOP-28 |
| 文件頁數(shù)： | 12/42頁 |
| 文件大?。?/td> | 551K |
| 代理商： | MB89997PF |
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12
MB89990 Series
I
HANDLING DEVICES
1. Preventing Latch
-
up
Latchup may occur on CMOS ICs if voltage higher than V
CC
or lower than V
SS
is applied to input or output pins
other than medium-to high-voltage pins or if higher than the voltage which shows on “ 1. Absolute Maximum
Ratings” in “
I
Electrical Characteristics” is applied between V
CC
to V
SS
.
When latchup occurs, power supply current increases rapidly and might thermally damage 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 pull-up or pull-down
resistor.
3. Treatment of N.C. Pins
Be sure to leave (internally connected) N.C. pins open.
4. Power Supply Voltage Fluctuations
Although V
CC
power supply voltage is assured to operate within the rated range, 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 V
CC
ripple fluctuations
(P-P value) will be less than 10% of the standard V
CC
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 (option selection)
and release from stop mode.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB89997P-SH | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB8999X | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB899E | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 478 FOR YONAH (DUAL CORE), 945GME, VGA, ICH LANX - Bulk |
| MB899FE | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 478 FOR YONAH (DUAL CORE), 945GME, VGA, ICH LAN - Bulk |
| MB899F-MV-R | 制造商:IBase Technology (USA) Inc. 功能描述:ITX, SOCKET 478 FOR YONAH (DUAL CORE), 945GM, VGA, MARVELL 8 - Bulk |
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