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| 型號(hào)： | MB91F313APMC-GE1 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP120 |
| 封裝： | 16 X 16 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-120 |
| 文件頁(yè)數(shù)： | 11/72頁(yè) |
| 文件大小： | 1843K |
| 代理商： | MB91F313APMC-GE1 |
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MB91313A Series
DS07-16706-4E
19
Notes on the turning on/off VDDI pin (1.8 V internal power supply) and VDDE pin (3.3 V external pin power
supply)
Do not apply only VDDE pin (external power supply) voltage continuously (more than one minute) while the
VDDI pin (internal power supply) is disconnected as it 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 circuit may not be
able to maintain its internal state, for example, due to power supply noise.
Turning on/off these power supplies (VDDI/Analog/VDDE) simultaneously causes no problem.
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 the external clock as a general rule you should simultaneously supply X0 (X0A) and X1 (X1A)
pins. And also, the clock signal to X0 (X0A) should be supplied a clock signal with the reverse phase to X1
(X1A) pins. However, in this case the stop mode (oscillation stop mode) must not be used (This is because
the X1 (X1A) pin stops at “H” output in STOP mode). Furthermore, supply a clock to X0 (X0A) pin only if the
device is operating in less than 12.5 MHz.
Note : When operating at a frequency of 10 MHz, the delay between the X0 (X0A) and X1 signals should be
less than 15 ns.
Power on
VDD 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, X0A
X1, X1A
Cannot be used in STOP mode (oscillation stop mode).
MB91313A series
Using an External Clock (Normal Method)
X0, X0A
X1, X1A
Open
MB91313A series
Using an External Clock (available at 12.5 MHz or less)
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