- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98010 > MB90P641APF 16-BIT, OTPROM, 17 MHz, MICROCONTROLLER, PQFP100 PDF資料下載
參數(shù)資料
| 型號： | MB90P641APF |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, OTPROM, 17 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁數(shù)： | 6/94頁 |
| 文件大?。?/td> | 1542K |
| 代理商： | MB90P641APF |
第1頁第2頁第3頁第4頁第5頁當(dāng)前第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
14
MB90640A Series
s HANDLING DEVICES
1. Preventing Latchup
Latchup may occur on CMOS ICs if voltage higher than VCC or less than VSS 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 “s Electrical Characteristics” is applied between VCC and VSS.
When latchup occurs, power supply current increases rapidlly and might thermally damage elements. When
using, take great care not to exceed the absolute maximum ratings.
Also, take care to prevent the anaolg power supply (AVCC and AVR) and analog input from exceeding the digital
power supply (VCC) when the analog system power supply is truned on and off.
2. Treatment of Unused Pins
Leaving unused input pins open could cause malfunctions. They should be connected to a pull-up or pull-down
resister.
3. Cautions when Using an External Clock
Drive the X0 pin only when using an external clock.
4. Power Supply Pins
When there are several VCC and VSS pins, those pins that should have the same electric potential are connected
within the device when the device is designed in order to prevent misoperation, such as latchup. However, all
of those pins must be connected to the power supply and ground externally in order to reduce unnecessary
emissions, prevent misoperation of strobe signals due to an increase in the ground level, and to observe the
total output current standards.
In addition, give a due consideration to the connection in that current supply be connected to VCC and VSS with
the lowest possible impedance.
Finally, it is recommended to connect a ceramic capacitor of about 0.1
F between VCC and VSS near this device
as a bypass capacitor.
5. Crystal Oscillation Circuit
Noise in the vicinity of the X0 and X1 pins will cause this device to operate incorrectly. Design the printed circuit
board so that the bypass capacitor connecting X0, X1 and the crystal oscillator (or ceramic oscillator) to ground
is located as close to the device as possible, and possibly take care not to cross over the other wiring with this
wiring.
In addition, because printed circuit board artwork in which the area around the X0 and X1 pins is surrounded
by ground provides stable operation, such an arrangement is strongly recommended.
X0
X1
MB90640A
OPEN
Using an external clock
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90V595GCR | 16-BIT, 16 MHz, MICROCONTROLLER, CPGA256 |
| MB90V595CR | 16-BIT, 16 MHz, MICROCONTROLLER, CPGA256 |
| MB91151APMC-G | RISC MICROCONTROLLER, PQFP144 |
| MB91233LPFF-G-XXX | 32-BIT, MROM, 33.6 MHz, RISC MICROCONTROLLER, PQFP120 |
| MB91340PMT | 32-BIT, MROM, 66 MHz, RISC MICROCONTROLLER, PQFP176 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90V340A-102CR | 制造商:FUJITSU 功能描述: |
| MB-910 | 制造商:Circuit Test 功能描述:BREADBOARD WIRING KIT - 350 PCS |
| MB9100100 | 制造商:COM/DUO 功能描述:FAN 4-6WKS |
| MB9100-100 | 制造商:COM/DUO 功能描述:FAN 4-6WKS |
| MB91101 | 制造商:Panasonic Industrial Company 功能描述:IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。