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| 型號(hào)： | MB91F775RPMC-ESE1 |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RISC MICROCONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-144 |
| 文件頁(yè)數(shù)： | 47/120頁(yè) |
| 文件大?。?/td> | 4532K |
| 代理商： | MB91F775RPMC-ESE1 |
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MB91770 Series
32
DS07-16913-1E
Crystal oscillation circuit
An external noise to the X0 or X1 pin may cause a device malfunction. The printed circuit board must be designed
to lay out X0 and X1 pins, crystal oscillator (or ceramic resonator), and the bypass capacitor to be grounded to
the close position to the device.
The printed circuit board artwork is recommended to surround the X0 and X1 pins by ground circuits.
Mode pin (MD0, MD1)
Connect the MD0, MD1 mode pin to the VCC or VSS pin directly. To prevent an erroneous selection of test mode
caused by the noise, reduce the pattern length between each mode pin and VCC or VSS pin on the printed circuit
board. Also, use the low-impedance pin connection.
During power-on
To prevent a malfunction of the voltage step-down circuit built in the device, set the voltage rising time to have
50
μs or longer (between 0.2 V and 2.7 V) during power-on.
Notes during PLL clock operation
When the PLL clock is selected and if the oscillator is disconnected or if the input is stopped, this clock may
continue to operate at the free running frequency of the self oscillator circuit built in the PLL. This operation is
not guaranteed.
Treatment of A/D converter power supply pins
Connect the pins to have AVCC=AVRH=VCC and AVSS/AVRL=VSS even if the A/D converter is not used.
Notes on using external clock
An external clock is not supported. External direct clock input cannot be used (with main clock and sub clock).
Power-on sequence of A/D converter analog inputs
Be sure to turn on the digital power supply (VCC) first, and then turn on the A/D converter power supplies (AVCC,
AVRH, AVRL) and analog inputs (AN0 to AN31). Also, turn off the A/D converter power supplies and analog
inputs first, and then turn off the digital power supply (VCC). When the AVRH is turned on or off, it must not exceed
AVCC. Even if a common analog input pin is used as an input port, its input voltage must not exceed AVCC.
(However, the analog power supply and digital power supply can be turned on or off simultaneously.)
Handling of power supply for high-current output buffer pin (DVcc,DVss)
Always apply power supply for high-current output buffer pins (DVCC, DVss) after turning on the digital power
supply (VCC). In addition, turn off the power supply for the high-current output buffer pins before turning off the
digital power supply (VCC).
Apply the same power supply for high-current output buffer pins (DVCC, DVss) even when using such pins as
general-purpose ports (There is no problem in turning on or off the power supply for the high-current output
buffer pins and the digital power supply at the same time).
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相關(guān)代理商/技術(shù)參數(shù) |
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| MB91FV130CR-ES | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit RISC Microcontroller |
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| MB91FV319A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Microcontroller |
| MB91FV319APMT-ES | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Microcontroller |
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