參數(shù)資料
型號(hào)： MB89497PF
廠(chǎng)商： Fujitsu Limited
元件分類(lèi)： 8位微控制器
英文描述： 8-bit Proprietary Microcontroller
中文描述： 8位微控制器專(zhuān)有
文件頁(yè)數(shù)： 12/45頁(yè)
文件大小： 577K
代理商： MB89497PF
12
MB89490 Series
■
HANDLING DEVICES
1. Preventing Latch-up
Latch-up may occur on CMOS ICs if voltage higher than V
CC
or lower than V
SS
is applied to input and output
pins other than medium- to high-voltage pins or if higher than the voltage which shows on “1. Absolute Maximum
Ratings” in “
■
Electrical Characteristics” is applied between V
CC
and V
SS
.
When latch-up occurs, power supply current increases rapidly and might thermally damage elements. When
using, take great care not to exceed the absolute maximum ratings.
Also, take care to prevent the analog power supply (AV
CC
and
AVR), and analog input from exceeding the digital
power supply (V
CC
) when the analog system power supply is turned on and off.
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
resistor.
3. Treatment of Power Supply Pins on Microcontrollers with A/D
Connect to be AV
CC
= V
CC
and AV
SS
= AVR = V
SS
even if the A/D is not in use.
4. Treatment of N.C. Pins
Be sure to leave (internally connected) N.C. pins open.
5. 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.
6. Precautions when Using an External Clock
Even when an external clock is used, oscillation stabilization time is required for power-on reset and wake-up
from stop mode.
7. Treatment of Unused dedicated LCD pins
When dedicated LCD pins are not in use, keep them open.
相關(guān)PDF資料
PDF描述
MB89498 8-bit Proprietary Microcontroller
MB89498PF 8-bit Proprietary Microcontroller
MB89F499 8-bit Proprietary Microcontroller
MB89F499PF 8-bit Proprietary Microcontroller
MB89PV490 8-bit Proprietary Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB89498 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller
MB89498PF 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller
MB89498PFV 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller CMOS
MB894-C6-R 制造商:IBase Technology (USA) Inc. 功能描述:MATX, ZC CELERON M 600MHZ, 852GM, VGA, 10/100BT X 1, COMX4, - Bulk
MB894F-R 制造商:IBase Technology (USA) Inc. 功能描述:MATX, SOCKET 479, 855GME, VGA, 10/100BT X 1 + GBE X 1, COMX4 - Bulk
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