參數(shù)資料
型號(hào)： MB91F218SPMC-GTE1
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 40 MHz, 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)： 10/72頁(yè)
文件大?。?/td> 1895K
代理商： MB91F218SPMC-GTE1
MB91210 Series
18
DS07-16804-3E
Notes on using external clock
When an external clock is used, supply the opposite phase clock to X0/X1 pins, simultaneously. Note that input
only to X0 pin cannot be used. Also, when an external clock is used, do not use the STOP mode (oscillation
stop mode). (This is because the X1 pin stops at “H” output in the STOP mode.)
Example Application of External Clock (Normal)
Handling of NC/OPEN pins
Always leave NC pins and OPEN pins open.
Mode pins (MD0 to MD3)
These pins should be connected directly to VCC or VSS pins. To prevent the device erroneously switching to
test mode due to noise, design the PC board such that the distance between the mode pins and VCC or VSS
pins is as short as possible and the connection impedance is now.
MD3 pin must be connected to VSS pin directly with a resistance of 0
Ω.
Power-on
Upon power-on, INITX pin must have been set to “L” level.
Source oscillation input upon power-on
Upon power-on, never fail to input the clock until the oscillation stabilization wait is cancelled.
About Flash write
Note that Flash write/erase is not possible in the sub mode.
Treatment of power supply pins on A/D converter
Connect to ensure “AVCC
= VCC and AVSS = VSS” even if the A/D converter is not in use.
Power-on sequence for power supply analog input of A/D converter
Always supply power to the A/D converter (AVCC and AVRH) and apply analog input (AN0 to AN 31) after turning
on the digital power supply (VCC). Also, turn off the power supply for the A/D converter and analog input before
turning off the digital power supply (VCC). In so doing, the power supply must be turn on and off so that AVRH
does not exceed AVCC. Even when using a pin shared with analog input as an input port, ensure that the input
voltage does not exceed AVCC (There is no problem in turning on or off the A/D converter (AVCC and AVRH) and
digital power supplies at the same time).
Caution on operations during PLL clock mode
Even if the oscillator comes off or the clock input stops with the PLL clock selected for this microcontroller, the
microcontroller may continue to operate at the free-running frequency of the PLL’s internal self-oscillating oscil-
lator circuit. Performance of this operation is not guaranteed.
X0
X1
Note : STOP mode (oscillation stop mode) cannot be used.
MB91210
series
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