- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382289 > MB90246A (Fujitsu Limited) 16-bit Proprietary Microcontroller PDF資料下載
參數(shù)資料
| 型號： | MB90246A |
| 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)： | 14/100頁 |
| 文件大?。?/td> | 1956K |
| 代理商： | MB90246A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁
14
MB90246A Series
I
HANDLING DEVICES
1. Make Sure that the Voltage not Exceed the Maximum Rating (to Avoid a Latch-up)
In CMOS ICs, a latch-up phenomenon is caused when an voltage exceeding V
CC
or an voltage below V
SS
is
applied to input or output pins or a voltage exceeding the rating is applied across V
CC
and V
SS
.
When a latch-up is caused, the power supply current may be dramatically increased causing resultant thermal
break-down of devices. To avoid the latch-up, make sure that the voltage not exceed the maximum rating.
In turning on/turning off the analog power supply, make sure the analog power voltage (AV
CC
, AVRH) and analog
input voltages not exceed the digital voltage (V
CC
).
2. Connection of Unused Pins
Leaving unused pins open may result in abnormal operations. Clamp the pin level by connecting it to a pull-up
or a pull-down resistor.
3. Notes on Using External Clock
In using the external clock, drive X0 pin only and leave X1 pin unconnected.
4. Power Supply Pins
In products with multiple V
CC
or V
SS
pins, the pins of a same potential are internally connected in the device to
avoid abnormal operations including latch-up. However, connect the pins external power and ground lines to
lower the electro-magnetic emission level and abnormal operation of strobe signals caused by the rise in the
ground level, and to conform to the total current rating.
Make sure to connect V
CC
and V
SS
pins via lowest impedance to power lines.
It is recommended to provide a bypass capacitor of around 0.1
μ
F between V
CC
and V
SS
pin near the device.
5. Crystal Oscillator Circuit
Noises around X0 or X1 pins may be possible causes of abnormal operations. Make sure to provide bypass
capacitors via shortest distance from X0, X1 pins, crystal oscillator (or ceramic resonator) and ground lines, and
make sure, to the utmost effort, that lines of oscillation circuit not cross the lines of other circuits.
It is highly recommended to provide a printed circuit board art work surrounding X0 and X1 pins with an grand
area for stabilizing the operation.
Using external clock
X0
X1
MB90246A series
Open
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90246APFV | 16-bit Proprietary Microcontroller |
| MB91FV130CR-ES | 32-Bit RISC Microcontroller |
| MB91F133PBT | 32-Bit RISC Microcontroller |
| MB91133PBT | 32-Bit RISC Microcontroller |
| MB91F133PMT2 | 32-Bit RISC Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90246APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90330 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90330A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller |
| MB90330A_9E | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit microcontrollers |
| MB90333A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。