參數(shù)資料
型號(hào): m789436
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-Bit Single-Chip Microcontrollers
中文描述: 8位單芯片微控制器
文件頁數(shù): 14/144頁
文件大?。?/td> 1378K
代理商: M789436
CHAPTER 5 CLOCK GENERATOR
110
User’s Manual U15075EJ1V0UM00
Figure 5-7. Examples of Incorrect Resonator Connection (1/2)
(a) Too long wiring
(b) Crossed signal line
VSS
X1
X2
VSS
X1
X2
PORTn
(n = 0 to 3, 5)
(c) Wiring near high fluctuating current
(d) Current flowing through ground line of oscillator
(potential at points A, B, and C fluctuates)
VSS
X1
X2
High current
VSS
X1
AB
C
Pmn
VDD
High current
X2
Remark
When using the subsystem clock, read X1 and X2 as XT1 and XT2, respectively, and connect a
resistor to XT2 in series.
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