555 Timer Ic (5 Pieces)
The 555 timer IC is an integral part of electronics projects. Be it a simple project involving a single 8-bit micro-controller and some peripherals or a complex one involving system on chips (SoCs), 555 timer working is involved. These provide time delays, as an oscillator and as a flip-flop element among other applications.
Ground Reference Voltage 0V
Responsible for transition of the flip-flop from set to reset. The output of the timer depends 2 I on the amplitude of the external trigger pulse applied to this pin
This pin is normally connected to load as it is the only pin with output driven waveform
Negative pulse applied to this pin to disable or reset the timer. When not used for reset 4 I purposes, it should be connected to VCC to avoid false triggering
Controls the threshold and trigger levels. It determines the pulse width of the output 5 Voltage I waveform. An external voltage applied to this pin can also be used to modulate the output waveform
Compares the voltage applied to the terminal with a reference voltage of 2/3 Vcc. The 6 I amplitude of voltage applied to this terminal is responsible for the set state of the flip-flop
Open collector output which discharges a capacitor between intervals (in phase with output). 7 I It toggles the output from high to low when voltage reaches 2/3 of the supply voltage
Supply Voltage (Typical = 5V, Maximum = 18V)
- Typical operating voltage is +5V, can withstand a maximum of +18V.
- The source/sink current of the output pin is 200mA
- Consumes up to 3mA when operating at +5V
- Trigger Voltage is 1.67 when operating at +5V
- Operating Temperature is 70 degree Celsius.
- Available in 8-pin PDIP, SOIC, and VSSOP packages
- Time Delay Generation
- Pulse Width Modulation
- Pulse generation
- Precision Timing
- Sequential Timing circuits