參數(shù)資料
型號(hào)： MB95F108AMW
廠商： Fujitsu Limited
英文描述： 8-bit Proprietary Microcontrollers(8位微控制器)
中文描述： 8位微控制器專利（8位微控制器）
文件頁數(shù)： 16/72頁
文件大小： 739K
代理商： MB95F108AMW
MB95100AM Series
16
■
HANDLING DEVICES
Preventing Latch-up
Care must be taken to ensure that maximum voltage ratings are not exceeded when they are used.
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- and high-withstand voltage pins or if higher than the rating voltage is applied between V
CC
pin and V
SS
pin.
When latch-up occurs, power supply current increases rapidly and might thermally damage elements.
Also, take care to prevent the analog power supply voltage (AV
CC
, AVR) and analog input voltage from exceeding
the digital power supply voltage (V
CC
) when the analog system power supply is turned on or off.
Stable Supply Voltage
Supply voltage should be stabilized.
A sudden change in power-supply voltage may cause a malfunction even within the guaranteed operating range
of the Vcc power-supply voltage.
For stabilization, in principle, keep the variation in Vcc ripple (p-p value) in a commercial frequency range
(50 Hz/60 Hz) not to exceed 10% of the standard Vcc value and suppress the voltage variation so that the
transient variation rate does not exceed 0.1 V/ms during a momentary change such as when the power supply
is switched.
Precautions for Use of External Clock
Even when an external clock is used, oscillation stabilization wait time is required for power-on reset, wake-up
from sub clock mode or stop mode.
■
PIN CONNECTION
Treatment of Unused Input Pin
Leaving unused input pins unconnected can cause abnormal operation or latch-up, leaving to permanent dam-
age. Unused input pins should always be pulled up or down through resistance of at least 2 k
. Any unused
input/output pins may be set to output mode and left open, or set to input mode and treated the same as unused
input pins. If there is unused output pin, make it to open.
Treatment of Power Supply Pins on A/D Converter
Connect to be AV
CC
=
V
CC
and AV
SS
=
AVR
=
V
SS
even if the A/D converter is not in use.
Noise riding on the AV
CC
pin may cause accuracy degradation. So, connect approx. 0.1
μ
F ceramic capacitor
as a bypass capacitor between AV
CC
and AV
SS
pins in the vicinity of this device.
Power Supply Pins
In products with multiple V
CC
or V
SS
pins, the pins of the same potential are internally connected in the device
to avoid abnormal operations including latch-up. However, you must connect the pins to external power supply
and a ground line to lower the electro-magnetic emission level, to prevent abnormal operation of strobe signals
caused by the rise in the ground level, and to conform to the total output current rating.
Moreover, connect the current supply source with the V
CC
and V
SS
pins of this device at the low impedance.
It is also advisable to connect a ceramic bypass capacitor of approximately 0.1
μ
F between V
CC
and V
SS
near
this device.
相關(guān)PDF資料
PDF描述
MB95F108ANS 8-bit Proprietary Microcontrollers(8位微控制器)
MB95F108ANW 8-bit Proprietary Microcontrollers(8位微控制器)
MB95F104AJS 8-bit Proprietary Microcontrollers(8位微控制器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB95F108AMWPFM 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontrollers
MB95F108AMWPFM-GE1 制造商:Fujitsu 功能描述:Bulk
MB95F108AMWPFV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontrollers
MB95F108AMWPMC1-GE1 制造商:FUJITSU 功能描述:8-bit Proprietary Microcontrollers 制造商:FUJITSU 功能描述:8-Bit MCU
MB95F108ANS 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontrollers
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