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參數(shù)資料
| 型號： | MB90860E |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-bit Proprietary Microcontroller |
| 中文描述： | 16位微控制器專有 |
| 文件頁數(shù)： | 21/67頁 |
| 文件大?。?/td> | 981K |
| 代理商： | MB90860E |
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MB90860E Series
21
■
HANDLING DEVICES
1.
Preventing latch-up
CMOS IC may suffer latch-up under the following conditions :
A voltage higher than V
CC
or lower than V
SS
is applied to an input or output pin.
A voltage higher than the rated voltage is applied between V
CC
and V
SS
pins.
The AV
CC
power supply is applied before the V
CC
voltage.
Latch-up may increase the power supply current drastically, causing thermal damage to the device.
For the same reason, also be careful not to let the analog power-supply voltage (AV
CC
, AVRH) exceed the digital
power-supply voltage.
Handling unused pins
2.
Leaving unused input pins open may result in misbehavior or latch up and possible permanent damage of the
device. Therefore they must be pulled up or pulled down through resistors. In this case those resistors should
be more than 2 k
.
Unused bidirectional pins should be set to the output state and can be left open, or the input state with the above
described connection.
Power supply pins (V
CC
/V
SS
)
If there are multiple V
CC
and V
SS
pins, from the point of view of device design, pins to be of the same potential
are connected the inside of the device to prevent such malfunctioning as latch up.
To reduce unnecessary radiation, prevent malfunctioning of the strobe signal due to the rise of ground level,
and observe the standard for total output current, be sure to connect the V
CC
and V
SS
pins to the power supply
and ground externally.
Connect V
CC
and V
SS
to the device from the current supply source at a low impedance.
As a measure against power supply noise, connect a capacitor of about 0.1
μ
F as a bypass capacitor between
V
CC
and V
SS
in the vicinity of V
CC
and V
SS
pins of the device
3.
4.
Mode Pin (MD0 to MD2)
Connect the mode pin directly to V
CC
or V
SS
pins.
To prevent the device unintentionally entering test mode due to noise, lay out the printed circuit board so as to
minimize the distance from the mode pins to V
CC
or V
SS
pins and to provide a low-impedance connection.
Vcc
Vss
Vss
Vcc
Vss
Vcc
MB90860E
Series
Vcc
Vss
Vcc
Vss
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90867E | 16-bit Proprietary Microcontroller CMOS |
| MB90867EPF | 16-bit Proprietary Microcontroller CMOS |
| MB90867EPFV | 16-bit Proprietary Microcontroller CMOS |
| MB90867ES | 16-bit Proprietary Microcontroller CMOS |
| MB90867ESPF | 16-bit Proprietary Microcontroller CMOS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90867A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit general-purpose microcontroller |
| MB90867APF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit general-purpose microcontroller |
| MB90867APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit general-purpose microcontroller |
| MB90867AS | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller CMOS |
| MB90867ASPF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit general-purpose microcontroller |
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