參數(shù)資料
型號(hào): UPD78368A
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16/8-BIT單晶片微控制器
文件頁數(shù): 33/96頁
文件大?。?/td> 502K
代理商: UPD78368A
μ
PD78363A, 78365A, 78366A, 78368A
33
Figure 3-3. External Circuit of System Clock Oscillator Circuit
(a) crystal oscillator
(b) external clock
PD78366A
μ
V
SS
X1
X2
PD78366A
μ
X1
X2
Open
Cautions 1. Wire the portion enclosed by dotted line in Figure 3-3 as follows to avoid adverse
influences due to wiring capacity when using the system clock oscillation circuit.
Keep the wiring length as short as possible.
Do not cross the wiring with the other signal line. Make sure that the wiring is not close
to lines through which a high alternating current flows.
Always keep the ground point of the capacitor of the oscillation circuit at the same
potential as V
SS
. Do not ground the circuit to a ground pattern through which a high
current flows.
Do not extract signals from the oscillator circuit.
2. To input an external clock, do not connect a load such as wiring capacitance to the X2
pin.
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