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Fairchild Semiconductor - Single Timer

Numéro de référence SA555
Description Single Timer
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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SA555 fiche technique
LM555/NE555/SA555
Single Timer
www.fairchildsemi.com
Features
• High Current Drive Capability (200mA)
• Adjustable Duty Cycle
• Temperature Stability of 0.005%/°C
• Timing From µSec to Hours
• Turn off Time Less Than 2µSec
Applications
• Precision Timing
• Pulse Generation
• Time Delay Generation
• Sequential Timing
Description
The LM555/NE555/SA555 is a highly stable controller
capable of producing accurate timing pulses. With a
monostable operation, the time delay is controlled by one
external resistor and one capacitor. With an astable
operation, the frequency and duty cycle are accurately
controlled by two external resistors and one capacitor.
8-DIP
1
8-SOP
1
Internal Block Diagram
GND 1
R
Trigger 2
Comp.
RR
8 Vcc
Discharging Tr.
7 Discharge
Output 3
OutPut
Stage
F/F
Reset 4
Vref
Comp.
6 Threshold
Control
5
Voltage
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.3

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