參數(shù)資料
型號： MB90F949APF
元件分類： 微控制器/微處理器
英文描述： MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 3.35 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù)： 30/57頁
文件大?。?/td> 1586K
代理商： MB90F949APF
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7544 Group
MITSUBISHI MICROCOMPUTERS
36
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
Fig. 44 Block diagram of internal clock generating circuit (for ceramic resonator)
Fig. 45 Block diagram of internal clock generating circuit (for RC oscillation)
S
R
Q
S
R
Q
1/2
R
S
Q
Rf
1/4
1/2
WIT
instruction
STP instruction
Timing
φ
(Internal clock)
STP instruction
Interrupt request
Reset
Interrupt disable flag l
High-speed mode
Middle-speed mode
Prescaler 1
Timer 1
Main clock division
ratio selection bit
Double-speed mode
Ring oscillator mode
Ring oscillator
RING
XOUT
XIN
1/8
Main clock division ratio selection bit
Middle-, high-, low-speed mode
Ring oscillator mode
RESET
S
R
Q
S
R
Q
1/2
R
S
Q
1/4
1/2
WIT
instruction
STP instruction
Timing
φ
(Internal clock)
STP instruction
Interrupt request
Reset
Interrupt disable flag l
High-speed mode
Middle-speed mode
Prescaler 1
Timer 1
Main clock division
ratio selection bit
Double-speed mode
Ring oscillator mode
Ring oscillator
RING
XOUT
XIN
Delay
1/8
Main clock division ratio selection bit
Middle-, high-, low-speed mode
Ring
oscillator
mode
RESET
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