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參數(shù)資料
| 型號： | MB89930A |
| 廠商： | Fujitsu Limited |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Proprietary Microcontroller |
| 中文描述： | 8位微控制器專有 |
| 文件頁數(shù)： | 11/42頁 |
| 文件大小： | 199K |
| 代理商： | MB89930A |
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MB89930A Series
11
I
HANDLING DEVICES
1.
Preventing Latchup
Latchup 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- and high-voltage pins or if higher than the voltage which shows on “1. Absolute Maximum
Ratings” in section “
I
ELECTRICAL CHARACTERISTICS” is applied between V
CC
and 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.
Also, take care to prevent the 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 terminals open may lead to permanent damage due to malfunction and latchup; pull up
or pull down the terminals through the resistors of 2 k
or more.
Make the unused I/O terminal in a state of output and leave it open and if it is in an input state, handle it with
the same procedure as the input terminals.
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.
Treatment of Power Supply Pins on Microcontrollers with A/D Converters
Connect to be AV
SS
=
V
SS
even if the A/D converters are not in use.
6.
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.
7.
About the Wild Register Function
No wild register can be debugged on the MB89PV930A. For the operation check, test the MB89P935B installed
on a target system.
8.
Program Execution in RAM
When the MB89PV930A is used, no program can be executed in RAM.
9.
Note to Noise in the External Reset Pin (RST)
If the reset pulse applied to the external reset pin (RST) does not meet the specifications, it may cause malfunc-
tions. Use caution so that the reset pulse less than the specifications will not be fed to the external reset pin (RST).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB8993x | 8-bit Proprietary Microcontroller |
| MB89935 | 8-bit Proprietary Microcontroller |
| MB89935A | Hex Schmitt-trigger Inverters 14-CFP -55 to 125 |
| MB89935APFV | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 20-LCCC -55 to 125 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB89935 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89935A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89935APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89935B | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89935BPFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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