參數(shù)資料
型號: MB96F348RWAPQC-GSE2
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 56 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, 3.35 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù): 112/159頁
文件大?。?/td> 2625K
代理商: MB96F348RWAPQC-GSE2
MB96300 Series
Preliminary Specication
56
FME/EMDC- 2007-02-12
MB96300_shortspec.fm
PRELIMINARY
Connect VCC and VSS to the device from the power supply with lowest possible impedance.
As a measure against power supply noise, connect a capacitor of about 0.1
F as a bypass capacitor
between VCC and VSS as close as possible to VCC and VSS pins.
7.
Crystal Oscillator Circuit
Noise at X0 or X1 pins may possibly cause abnormal operation. Make sure to provide bypass capacitors with
shortest distance to 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 a ground
area for stabilizing the operation.
8.
Turning-on Sequence of Power Supply to A/D Converter and Analog Inputs
Make sure to turn on the A/D converter power supply (AVCC, AVRH, AVRL) and analog inputs (ANn) after
turning-on the digital power supply (VCC).
Turn-off the digital power after turning off the A/D converter supply and analog inputs. In this case, make sure
that the voltage does not exceed AVRH or AVCC (turning on/off the analog and digital power supplies
simultaneously is acceptable).
9.
Connection of Unused Pins of A/D Converter
Connect unused pins of A/D converter as AVCC = VCC, AVSS = AVRH = AVRL = VSS.
10. Notes on Energization
To prevent malfunction of the internal voltage regulator, supply voltage profile while turning on the power
supply should be slower than 50us from 0.2 V to 2.7 V.
11. Stabilization of power supply voltage
If the power supply voltage varies acutely even within the operation assurance range of the Vcc power supply
voltage, a malfunction may occur. The Vcc power supply voltage must therefore be stabilized. As stabilization
guidelines, stabilize the power supply voltage so that Vcc ripple fluctuations (peak to peak value) in the
commercial frequencies (50 to 60 Hz) fall within 10% of the standard Vcc power supply voltage and the
transient fluctuation rate becomes 0.1V/
s or less in instantaneous fluctuation for power supply switching.
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