一、功能及應(yīng)用 EC340EGB
CMOS 生產(chǎn)制造工藝，自身功耗低。工作電壓寬，抗干擾能力強(qiáng)。OUT 輸出電平可選，定時(shí)時(shí)間范圍寬,定時(shí)OPTION 為8 倍差。上電輸出高電平，按鍵開(kāi)始定時(shí)，LED1 輸出低電平，定時(shí)時(shí)間到，LED1 輸出高電平。
二、電氣參數(shù) (VDD=3.0V，GND=0V,Ta=25℃)
|
Characteristies |
Sym |
Min |
Typ |
Max |
Unit |
Remarks |
|
工作電壓 |
Vdd |
2.2 |
3 |
5 |
V |
|
|
工作電流 |
Iop |
|
|
200 |
μA |
No load |
|
靜態(tài)電流 |
Isb |
|
|
2 |
μA |
No load |
|
LED推動(dòng)電流 |
Iol |
30 |
|
|
mA |
Vdd=3V,Vds=1.2V |
|
振蕩頻率 |
Fosc |
|
|
|
KHz |
外接電阻 |
|
工作溫度 |
Temp |
0 |
25 |
60 |
℃ |
|
三、IC腳位邦定圖
|
五、外接電阻頻率測(cè)試參數(shù)
時(shí)間選擇方法：
KEY1=0，KEY2=0 都懸空，定時(shí)時(shí)間如下表
KEY1=VDD，KEY2=VDD 同時(shí)接VDD，定時(shí)時(shí)間是表中512的倍
KEY1=VDD，KEY2=0 定時(shí)時(shí)間是表中8的倍
KEY1=0，KEY2=VDD 定時(shí)時(shí)間是表中64的倍
|
KEY1=0 KEY2=0 |
||||
|
R |
3V |
時(shí)間 |
4.5V |
時(shí)間 |
|
20K |
841.8KHz |
10S |
1.03M |
8S |
|
30K |
688.2K |
12S |
818.8K |
10S |
|
39K |
589.6K |
14S |
679.5K |
12S |
|
51K |
492.7K |
17S |
559.8K |
15S |
|
75K |
385.7K |
22S |
422.7K |
20S |
|
100K |
314.5K |
27S |
340.5K |
25S |
|
150K |
226.1K |
37S |
237.7K |
35S |
|
200K |
173.0K |
48S |
180.7K |
46S |
|
240K |
152.9K |
55S |
157.3K |
53S |
|
300K |
114.3K |
73S |
117.6K |
71S |
|
390K |
97.17K |
86S |
98.40K |
85S |
|
510K |
76.10K |
110S |
77.0K |
108S |
|
750K |
50.25K |
167S |
49.70K |
169S |
|
1M |
40.30K |
208S |
40.25K |
208S |
|
1.2M |
31.20K |
269S |
30.70K |
273S |
|
1.5M |
27.82K |
302S |
27.70K |
303S |
|
2M |
20.95K |
400S |
20.35K |
412S |
|
3M |
13.80K |
608S |
13.75K |
610S |
|
4.7M |
8.8K |
953S |
8.50K |
987S |
|
10M |
4.1K |
2046S |
4.10K |
2046S |
|
15M |
2.9K |
2892S |
2.8K |
2996S |
|
20M |
2.05K |
4934S |
1.65K |
4194S |
|
22M |
1.70K |
4934S |
1.65K |
5084S |
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