A descrição de NE555 Timer

The best 555 timer toolkit. This app helps you with all your NE555 projects.
This app has many useful tables and calculators about the NE555 IC in monostable, astable and bistable mode.
Features:
•Circuit diagrams for monostable, astable and bistable circuits.
•Calculator to calculate the capacitance, resistance, or output pulse width in monostable mode.
•Calculator to calculate the frequency and duty cycle in astable mode.
•Calculator to generate recommended resistor and capacitor values by a given output pulse width or frequency and duty cycle in monostable and astable mode respectively.
•Graph for monostable, astable and bistable mode.
•Pinout diagrams for the 555, 556 and 558 ICs.
•Specifications
•Led resistor calculator
•resistor color code calculator
•capacitor codes
•Ohm's law
•formulas
•datasheets for the 555, 556 and 558 ICs (requires internet).