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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제품설명 단가 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
RS 제품 번호 921-5652
제조사 부품 번호CS82C54-10Z96
₩15,800.70
Each
수량
Surface Mount Programmable PLCC 1 28 10MHz 4.5 V 5.5 V 0 °C +70 °C - 2.5mA -2.5mA 100 ns @ 5 V
RS 제품 번호 923-1477
제조사 부품 번호CS82C54-10Z96
₩9,747.95
Each (On a Reel of 750)
수량
Surface Mount Programmable PLCC 1 28 10MHz 4.5 V 5.5 V 0 °C +70 °C - 2.5mA -2.5mA 100 ns @ 5 V
RS 제품 번호 921-5582
제조사 부품 번호CS82C54-10Z
₩15,318.65
Each
수량
Surface Mount Programmable PLCC 1 28 10MHz 4.5 V 5.5 V 0 °C +70 °C - 2.5mA -2.5mA 100 ns @ 5 V
RS 제품 번호 921-5377
제조사 부품 번호ICM7556IPDZ
₩2,148.30
Each (In a Pack of 5)
수량
Through Hole Standard PDIP 2 14 1MHz 2 V 18 V -25 °C +85 °C - 20mA -0.8mA -
RS 제품 번호 146-2399
제조사 부품 번호ICM7556IPDZ
₩1,830.55
Each (In a Tube of 25)
수량
Through Hole Standard PDIP 2 14 1MHz 2 V 18 V -25 °C +85 °C - 20mA -0.8mA -
RS 제품 번호 170-8173
제조사 부품 번호ICM7555IPAZ
₩905.20
Each (In a Tube of 50)
수량
Through Hole Standard PDIP 1 8 1MHz 2 V 18 V -25 °C +85 °C - 20mA -0.8mA -
RS 제품 번호 921-5374
제조사 부품 번호ICM7555IPAZ
₩933.10
Each (In a Pack of 10)
수량
Through Hole Standard PDIP 1 8 1MHz 2 V 18 V -25 °C +85 °C - 20mA -0.8mA -
RS 제품 번호 923-1470
제조사 부품 번호IS82C54-10Z
₩28,107.70
Each (In a Tube of 37)
수량
Surface Mount Programmable PLCC 1 28 10MHz 4.5 V 5.5 V -40 °C +85 °C - 2.5mA -2.5mA 100 ns @ 5 V
신제품
RS 제품 번호 196-8888
제조사 부품 번호ICM7555CBAZ-T
₩849.40
Each (In a Pack of 25)
수량
- Standard SOIC - 8 1MHz - - - - - - - -
신제품
RS 제품 번호 196-8891
제조사 부품 번호ICM7555IBAZ-T
₩849.40
Each (In a Pack of 25)
수량
- Standard SOIC - 8 1MHz - - - - - - - -
RS 제품 번호 921-5507
제조사 부품 번호ICM7555IBAZ
₩778.10
Each (In a Pack of 25)
수량
Surface Mount Standard SOIC 1 8 1MHz 2 V 18 V -25 °C +85 °C - 20mA -0.8mA -
RS 제품 번호 921-5541
제조사 부품 번호IS82C54Z
₩25,638.55
Each
수량
Surface Mount Programmable PLCC 1 28 8MHz 4.5 V 5.5 V -40 °C +85 °C - 2.5mA -2.5mA 150 ns @ 5 V
신제품
RS 제품 번호 196-8889
제조사 부품 번호ICM7555IBAZ-T
₩367.35
Each (On a Reel of 2500)
수량
- Standard SOIC - 8 1MHz - - - - - - - -
RS 제품 번호 923-1571
제조사 부품 번호ICM7242IPAZ
₩6,327.10
Each (In a Tube of 50)
수량
Through Hole Standard PDIP 1 8 13MHz 2 V 16 V -25 °C +85 °C 0.125mA 50mA - -
RS 제품 번호 921-5595
제조사 부품 번호CS82C54Z
₩13,781.05
Each
수량
Surface Mount Programmable PLCC 1 28 8MHz 4.5 V 5.5 V 0 °C +70 °C - 2.5mA -2.5mA 150 ns @ 5 V
신제품
RS 제품 번호 196-8887
제조사 부품 번호ICM7555CBAZ-T
₩367.35
Each (On a Reel of 2500)
수량
- Standard SOIC - 8 1MHz - - - - - - - -
RS 제품 번호 921-5677
제조사 부품 번호IS82C54-10Z
₩31,905.20
Each
수량
Surface Mount Programmable PLCC 1 28 10MHz 4.5 V 5.5 V -40 °C +85 °C - 2.5mA -2.5mA 100 ns @ 5 V
RS 제품 번호 921-5951
제조사 부품 번호ICM7242IPAZ
₩7,440.00
Each (In a Pack of 2)
수량
Through Hole Standard PDIP 1 8 13MHz 2 V 16 V -25 °C +85 °C 0.125mA 50mA - -
RS 제품 번호 923-1405
제조사 부품 번호IS82C54Z
₩22,588.15
Each (In a Tube of 37)
수량
Surface Mount Programmable PLCC 1 28 8MHz 4.5 V 5.5 V -40 °C +85 °C - 2.5mA -2.5mA 150 ns @ 5 V