參數(shù)資料
型號(hào)： M37906M4C-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDSO42
封裝： 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁(yè)數(shù)： 74/101頁(yè)
文件大?。?/td> 766K
代理商： M37906M4C-XXXFP
74
M37906M4C-XXXFP, M37906M4C-XXXSP, M37906M4H-XXXFP
M37906M4H-XXXSP, M37906M6C-XXXFP, M37906M6C-XXXSP
M37906M8C-XXXFP, M37906M8C-XXXSP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Som
e param
etric
lim
its are
subject
to change.
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
OSCILLATION CIRCUIT
An oscillation circuit locates between pins XIN and XOUT, and Figure
81 shows a circuit example with an external ceramic resonator or
quartz-crystal oscillator. The constants such as capacitance etc. de-
pend on an oscillator. Therefore, for these constants, adopt the reso-
nator/oscillator manufacturer’s recommended values.
Figure 82 shows a circuit example with an external clock source.
When an external clock is input, be sure to leave pin XOUT open.
Also, in this case, when the external clock input select bit (bit 1 of the
particular function select register 0; See Figure 86.) is set to “1”, the
oscillation circuit stops it’s operation and resumes the current dissi-
pation. Moreover, this bit has another function, which selects the re-
turn condition from the stop mode. For details, refer to the section on
the standby function.
On the other hand, the PLL (Phase Locked Loop) frequency multi-
plier (hereafter, referred as PLL circuit.) is included, also. This PLL
circuit uses a clock input from pin XIN and generates a multiplied
clock. When using the PLL circuit, be sure to connect pin VCONT with
an external filter circuit. (See Figure 83.) When not using the PLL cir-
cuit, be sure to leave pin VCONT open.
When not using the PLL circuit, be sure to clear the PLL circuit op-
eration enable bit (bit 1 of the clock control register 0; See Figure
85.), so that the PLL circuit will stop its operation.
Fig. 81 Circuit example with external ceramic resonator or quartz-crystal
oscillator
Fig. 82 Circuit example with external clock source
Fig. 83 Circuit example of connection with pin VCONT when PLL cir-
cuit used
XIN
Rf
XOUT
Rd
CIN
COUT
M37906
XIN
XOUT
Left open.
External clock source
Vcc
Vss
M37906
VCONT
1 K
0.1
F
220 pF
Note: Make the wiring length as short as possible,
and shield it with the GND line which
surrounds this circuit. Also, for the clock
supply to pin XIN, see Figures 81 and 82.
相關(guān)PDF資料
PDF描述
M37906M4C-XXXSP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP42
M37906M4H-XXXSP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP42
M37920F8MHP 16-BIT, FLASH, 26 MHz, MICROCONTROLLER, PQFP100
M37920S4CGP 16-BIT, 20 MHz, MICROCONTROLLER, PQFP100
M37920S4CGP 16-BIT, 20 MHz, MICROCONTROLLER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37906M4C-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER
M37906M4H-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER
M37906M6C-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER
M37906M6C-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER
M37906M8C-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER
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