LM555 Timer - Texas Instruments

The LM555-MIL is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired.

The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired.

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.

LMC555 CMOS Timer 1 Features • Fast astable frequency of 3MHz • Available in industry's smallest 8-bump DSBGA package (1.43mm × 1.41mm) • Less than 1mW typical power dissipation at 5V supply • 1.5V specified supply operating voltage • output fully compatible with TTL and CMOS logic at 5V supply • Tested to −10mA, 50mA output ...

The LM555-MIL 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.

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.

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.

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.

Just like the standard a-stable circuit, the low time is R B * C * ln(2) and the high time is (R A + R B) * C* ln((2V S-3V D)/(V S-3V D)), where V S is supply voltage and V D is diode voltage. As supply voltage increases, the V D term becomes less significant.