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PDF LM555 Data sheet ( Hoja de datos )
| Número de pieza | LM555 | |
| Descripción | Timer | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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 1. - Single Timer - Fairchild  Hay una vista previa y un enlace de descarga de LM555 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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July 2006
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
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
n Direct replacement for SE555/NE555
n Timing from microseconds through hours
n Operates in both astable and monostable modes
n Adjustable duty cycle
n Output can source or sink 200 mA
n Output and supply TTL compatible
n Temperature stability better than 0.005% per ˚C
n Normally on and normally off output
n Available in 8-pin MSOP package
Applications
n Precision timing
n Pulse generation
n Sequential timing
n Time delay generation
n Pulse width modulation
n Pulse position modulation
n Linear ramp generator
Schematic Diagram
© 2006 National Semiconductor Corporation DS007851
00785101
www.national.com
1 page  
Typical Performance Characteristics
Minimuim Pulse Width
Required for Triggering
Supply Current vs.
Supply Voltage
High Output Voltage vs.
Output Source Current
00785104
00785119
Low Output Voltage vs.
Output Sink Current
00785120
Low Output Voltage vs.
Output Sink Current
00785121
Low Output Voltage vs.
Output Sink Current
00785122
5
00785123
www.national.com
5 Page 
Physical Dimensions inches (millimeters) unless otherwise noted
Small Outline Package (M)
NS Package Number M08A
8-Lead (0.118” Wide) Molded Mini Small Outline Package
NS Package Number MUA08A
11 www.national.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LM555.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LM555 | Timer | National Semiconductor |
| LM555 | Single Timer |  Fairchild Semiconductor |
| LM555 | LM555 Timer (Rev. D) |  Texas Instruments |
| LM555 | Timers for Timing Delays and Oscillator Application in Commercial |  Harris Corporation |
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