- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377925 > MB90440G (Fujitsu Limited) Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-CDIP -55 to 125 PDF資料下載
參數(shù)資料
| 型號： | MB90440G |
| 廠商： | Fujitsu Limited |
| 英文描述： | Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-CDIP -55 to 125 |
| 中文描述： | 16位微控制器專有 |
| 文件頁數(shù)： | 15/61頁 |
| 文件大?。?/td> | 644K |
| 代理商： | MB90440G |
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頁第14頁當(dāng)前第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
MB90440G Series
15
I
HANDLING DEVICES
1.
Preventing Latch-up
CMOS IC chips may suffer latch-up under the following conditions :
(1) A voltage higher than V
CC
or lower than V
SS
is applied to an input or output pin.
(2) A voltage higher than the rated voltage is applied to between V
CC
and Vss.
(3) 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.
Always take sufficient precautions in using semiconductor devices to avoid this possibility.
Also be careful not to let the analog power-supply voltage (AV
CC
, AVRH) exceed the digital power-supply voltage
(V
CC
) when the analog system power-supply is turned on and off.
Handling Unused Input Pins
2.
Do not leave unused input pins open, as doing so may cause misoperation of the device or latch-up leading to
permanent damage. Unused input pins should be pulled up or pulled down through at least 2 k
resistance.
Unused I/O pins may be left open in output state, but if such pins are in input state they should be handled in
the same way as input pins.
Use of the External Clock
3.
To use the external clock, drive only the X0 pin and leave the X1 pin open.
A diagram of how to use an external clock is shown below.
4.
Precautions for when not using a Sub Clock Signal
If the X0A and X1A pins are not connected to an oscillator, apply pull-down treatment to the X0A pin and leave
the X1A pin open.
Power Supply Pins (V
CC
/V
SS
)
5.
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 to prevent 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
pins near the device.
X0
X1
open
MB90440G Series
V
CC
V
SS
V
CC
V
CC
V
CC
V
CC
V
SS
V
SS
V
SS
V
SS
MB90440G
Series
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90F482 | 16-bit Proprietary Microcontroller |
| MB90480 | 16-bit Proprietary Microcontroller |
| MB90483C | 16-bit Proprietary Microcontroller |
| MB90483CPF | 16-bit Proprietary Microcontroller |
| MB90483CPFV | 16-bit Proprietary Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90443G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90443GPF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90455 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller |
| MB90455PMT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90455S | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。