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參數(shù)資料
| 型號： | LM555H-MLS/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬波形發(fā)生器 |
| 英文描述： | PULSE; RECTANGULAR, TIMER, MBCY8 |
| 封裝： | TO-5, 8 PIN |
| 文件頁數(shù)： | 5/16頁 |
| 文件大小： | 443K |
| 代理商： | LM555H-MLS/NOPB |
LM555 Timer
See Also: LMC555 - CMOS version
Generic P/N 555
Contents
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General Description
The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional
terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time
is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the
free running frequency and duty cycle are accurately controlled with two external resistors and one
capacitor. The circuit may be triggered and reset on falling waveforms, and the output circuit can source
or sink up to 200mA or drive TTL circuits.
Features
Direct replacement for SE555/NE555
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Timing from microseconds through hours
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Operates in both astable and monostable modes
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Adjustable duty cycle
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Output can source or sink 200 mA
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Output and supply TTL compatible
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Temperature stability better than 0.005% per °C
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Normally on and normally off output
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Available in 8-pin MSOP package
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National P/N LM555 - Timer
file:///d|/chechi/LM555.html (1 of 4) [10/11/2001 2:33:19 PM]
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| LM555IN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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