參數(shù)資料
型號(hào)： UPD75P3018AGK-9EU
廠商： NEC Corp.
元件分類(lèi)： 圓形連接器
英文描述： Circular Connector; No. of Contacts:56; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-4 RoHS Compliant: No
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 30/64頁(yè)
文件大小： 356K
代理商： UPD75P3018AGK-9EU
PD75P3018A
36
Data Sheet U11917EJ2V0DS00
Subsystem Clock Oscillator Characteristics (TA = –40 to +85
°C, VDD = 1.8 to 5.5 V)
Resonator
Recommended Circuit
Parameter
Conditions
MIN.
TYP.
MAX.
Unit
Crystal
Oscillation frequency
32
32.768
35
kHz
resonator
(fXT)Note 1
Oscillation
VDD = 4.5 to 5.5 V
1.0
2
s
stabilization timeNote 2
10
External
XT1 input frequency
32
100
kHz
clock
(fXT)Note 1
XT1 input high-/
5
15
s
low-level width
(tXTH, tXTL)
Notes 1. The oscillation frequency and XT1 input frequency shown above indicate characteristics of the oscillator only.
For the instruction execution time, refer to AC Characteristics.
2. The oscillation stabilization time is the time required for oscillation to be stabilized after VDD has been applied.
Caution
When using the subsystem clock oscillator , wire the portion enclosed in the broken line in the above
figure as follows to prevent adverse influence due to wiring capacitance:
Keep the wiring length as short as possible.
Do not cross the wiring with other signal lines.
Do not route the wiring in the vicinity of a line through which a high alternating current flows.
Always keep the ground point of the capacitor of the oscillator at the same potential as VDD.
Do not ground to a power supply pattern through which a high current flows.
Do not extract signals from the oscillator.
The subsystem clock oscillator has a low amplification factor to reduce current consumption and is
more susceptible to noise than the main system clock oscillator. Therefore, exercise utmost care in
wiring the subsystem clock oscillator.
Remark
For the resonator selection and oscillator constant, customers are requested to either evaluate the oscillation
themselves or apply to the resonator manufacturer for evaluation.
XT1
XT2
C3
C4
R
VDD
XT1
XT2
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