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參數(shù)資料
| 型號： | MB91605PMC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, MROM, 80 MHz, RISC MICROCONTROLLER, PQFP176 |
| 封裝： | 24 X 24 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-176 |
| 文件頁數(shù)： | 10/68頁 |
| 文件大小： | 1435K |
| 代理商： | MB91605PMC |
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MB91605 Series
18
Notes on the turning on and off the power to the VDDI pin (1.8 V internal power supply) and VDDE pin (3.3 V
external pin power supply).
Turn on/off the power in the following procedure.
Do not continuously (more than one minute) apply power to the VDDE pin (external power supply) while the
VDDI pin (internal power supply) is disconnected as this will adversely affect the reliability of the LSI.
When the VDDE pin (external power supply) returns from the off state to the on state, the internal state of the
circuit might not be able to be maintained due to power supply noise and other effects.
When the power is turned on, the states of the output pins may remain undefined until the internal power supply
becomes stable.
Notes on using an external clock
When using an external clock, in principal, the clock signal should be supplied simultaneously to the X0 and X1
pins, with the phase-inverted clock signal of X0 supplied to the X1 pin. However, the external clock must not be
used while the microcontroller is in stop mode (oscillator stop mode). (This is because the X1 pin stops at “H”
output in STOP mode.)
Power on
VDDI pin (internal power supply)
→ VDDE pin (external power supply) → Analog→ Signal
Power off
Signal
→ Analog→ VDDE pin (external power supply) → VDDI pin (internal power supply)
X0
X1
Cannot be used in STOP mode (oscillation stop mode).
MB91605 series
Using an External Clock
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