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LM555CMM Datasheet

  • LM555CMM

  • Timer

  • 12頁

  • NSC

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LM555 Timer
February 2000
LM555
Timer
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 re-
sistor 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
n
n
n
n
n
n
n
n
n
Direct replacement for SE555/NE555
Timing from microseconds through hours
Operates in both astable and monostable modes
Adjustable duty cycle
Output can source or sink 200 mA
Output and supply TTL compatible
Temperature stability better than 0.005% per 藲C
Normally on and normally off output
Available in 8-pin MSOP package
Applications
n
n
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Precision timing
Pulse generation
Sequential timing
Time delay generation
Pulse width modulation
Pulse position modulation
Linear ramp generator
Schematic Diagram
DS007851-1
漏 2000 National Semiconductor Corporation
DS007851
www.national.com

LM555CMM 產(chǎn)品屬性

  • National Semiconductor (TI)

  • Standard

  • MSOP

  • 1

  • 16 V

  • 4.5 V

  • 613 mW

  • + 70 C

  • 0 C

  • Reel

  • SMD/SMT

  • 1000

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