參數資料
型號： UPD750104CUA
廠商： NEC Corp.
英文描述： 4 BIT SINGLE-CHIP MICROCONTROLLER
中文描述： 4位單片機
文件頁數： 54/80頁
文件大?。?/td> 525K
代理商： UPD750104CUA
μ
PD750104, 750106, 750108, 750104(A), 750106(A), 750108(A)
54
Recommended
constant
CHARACTERISTICS OF THE MAIN SYSTEM CLOCK OSCILLATOR (T
A
= -40 to +85
°
C, V
DD
= 1.8 to 5.5 V)
Note
The oscillator frequency indicates only the oscillator characteristics. See AC characteristics for the
instruction execution time and oscillator frequency characteristics.
Caution When the main system clock oscillator is used, conform to the following guidelines when wiring
at the portions surrounded by dotted lines in the figures above to eliminate the influence of the
wiring capacity.
The wiring must be as short as possible.
Other signal lines must not run in these areas.
Any line carrying a high fluctuating current must be kept away as far as possible.
The grounding point of the capacitor of the oscillator must have the same potential as that
of V
SS
.
It must not be grounded to ground patterns carrying a large current.
No signal must be taken from the oscillator.
TYP.
Parameter
Oscillator frequency (f
CC
)
Note
MIN.
0.4
MAX.
2.0
Unit
MHz
Conditions
Resonator
RC
oscillator
CL1
CL2
相關PDF資料
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