Timer Circuits

Timer circuits are used to control sequences of events in electronic systems. They work by changing the circuit from one state to another in advance.

Applications for timer circuits
You can use timer circuits for basic timing functions, like turning a light on for a certain amount of time or creating a flashing light. They can also be used to create musical notes of a particular frequency.

555 timers
The most widespread type of timer circuit is the 555 timer, which is made up of an eight-pin dual in-line package containing 25 transistors, two diodes and 16 resistors. They can be used as either astable or monostable timers:

  • Monostable: Often called a one-shot timer, a monostable timer stays on for a certain length of time and then turns off. The timing process starts when the timer is switched on.
  • Astable: An astable timer is switched on to provide a constant on/off digital output. The timer can be used make an LED flash, and the rate of flashing is determined by a capacitor in the circuit.
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detalji proizvoda Proizvođač Mounting Type Timer Type Package Type Number of Internal Timers Pin Count Maximum Input Frequency Minimum Operating Supply Voltage Maximum Operating Supply Voltage Minimum Operating Temperature Maximum Operating Temperature Maximum Quiescent Current Maximum Low Level Output Current Maximum High Level Output Current Maximum Propagation Delay Time @ Maximum CL Dimensions Length Width Height Series Propagation Delay Test Condition
3-Volt 5-Tap Economy Timing Element
  • RS kat. broj 190-4882
  • robna marka Maxim
  • Pro. broj DS1100LZ-200+
Maxim - - - - - - - - - - - - - - - - - - - -
3-Volt 5-Tap Economy Timing Element Maxim - - - - - - - - - - - - - - - - - - - -
3-Volt 5-Tap Economy Timing Element Maxim - - - - - - - - - - - - - - - - - - - -
3-Volt 5-Tap Economy Timing Element
  • RS kat. broj 190-5911
  • robna marka Maxim
  • Pro. broj DS1100LZ-200+
Maxim - - - - - - - - - - - - - - - - - - - -
3-Volt 5-Tap Economy Timing Element Maxim - - - - - - - - - - - - - - - - - - - -
3-Volt 5-Tap Economy Timing Element Maxim - - - - - - - - - - - - - - - - - - - -
8-Bit Binary, Prog, RC Timer Counter Maxim - - - - - - - - - - - - - - - - - - - -
8-Bit Binary, Prog, RC Timer Counter Maxim - - - - - - - - - - - - - - - - - - - -
8-Bit Binary, Prog, RC Timer Counter Maxim - - - - - - - - - - - - - - - - - - - -
8-Bit Binary, Prog, RC Timer Counter Maxim - - - - - - - - - - - - - - - - - - - -
8-Bit Programmable Timing Element Maxim - - - - - - - - - - - - - - - - - - - -
8-Bit Programmable Timing Element Maxim - - - - - - - - - - - - - - - - - - - -
BD9555FVM-CGTR, Timer, 8-Pin MSOP
  • RS kat. broj 185-0950
  • robna marka ROHM
  • Pro. broj BD9555FVM-CGTR
ROHM Surface Mount - MSOP 1 8 - 4.5 V 42 V -40 °C +125 °C - 50mA -10mA - 2.9 x 2.8 x 0.75mm 2.9mm 2.8mm 0.75mm - -
BD9555FVM-CGTR, Timer, 8-Pin MSOP
  • RS kat. broj 185-1005
  • robna marka ROHM
  • Pro. broj BD9555FVM-CGTR
ROHM Surface Mount - MSOP 1 8 - 4.5 V 42 V -40 °C +125 °C - 50mA -10mA - 2.9 x 2.8 x 0.75mm 2.9mm 2.8mm 0.75mm - -
Low-Power, General-Purpose Timer Maxim - - - - - - - - - - - - - - - - - - - -
Low-Power, General-Purpose Timer Maxim - - - - - - - - - - - - - - - - - - - -
Low-Power, General-Purpose Timer Maxim - - - - - - - - - - - - - - - - - - - -
Low-Power, General-Purpose Timer Maxim - - - - - - - - - - - - - - - - - - - -
MINUTEUR FAIBLE PUISSANCE Maxim - - - - - - - - - - - - - - - - - - - -
Maxim DS1682S+, Programmable Timer Circuit 0.1MHz, 8-Pin SOIC Maxim Surface Mount Programmable SOIC - 8 0.1MHz 2.5 V 5.5 V -40 °C +85 °C - - - - 5 x 4 x 1.5mm 5mm 4mm 1.5mm - -
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