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 112-5368
제조사 부품 번호NE556D
₩702.15
Each
수량
Surface Mount Standard SOIC 2 14 - 4.5 V 16 V 0 °C +70 °C 30mA 200mA -200mA -
RS 제품 번호 662-4006
제조사 부품 번호TLC555CDR
₩782.75
Each (In a Pack of 10)
수량
Surface Mount Standard SOIC 1 8 2MHz 2 V 15 V 0 °C +70 °C - 100mA -10mA -
신제품
RS 제품 번호 190-4881
제조사 부품 번호DS1100LZ-20+
제조사Maxim Integrated
₩6,356.55
Each (In a Tube of 100)
수량
Surface Mount Precision SOIC 1 8 1MHz 3 V 3.6 V -40 °C +85 °C - 8 (Minimum)mA -1mA -
RS 제품 번호 145-0078
제조사 부품 번호TLC556CN
₩1,625.95
Each (In a Tube of 25)
수량
Through Hole Standard PDIP 2 14 2MHz 2 V 18 V 0 °C +70 °C - 100mA -10mA -
RS 제품 번호 662-4687
제조사 부품 번호TLC556ID
₩1,923.55
Each (In a Pack of 5)
수량
Surface Mount Standard SOIC 2 14 2MHz 3 V 18 V -40 °C +85 °C - 100mA -10mA -
신제품
RS 제품 번호 189-7189
제조사 부품 번호ICM7555IPA+
제조사Maxim Integrated
₩3,808.35
Each (In a Tube of 50)
수량
Through Hole Standard PDIP 1 8 - 2 V 18 V -20 °C +85 °C - 3.2mA 2mA -
RS 제품 번호 517-1618
제조사 부품 번호SA555P
₩500.65
Each (In a Pack of 10)
수량
Through Hole Standard PDIP 1 8 - 4.5 V 16 V -40 °C +85 °C 15mA 200mA -200mA -
신제품
RS 제품 번호 190-5920
제조사 부품 번호MAX7375AXR805+T
제조사Maxim Integrated
₩2,813.25
Each (In a Pack of 5)
수량
Surface Mount - SC-70 - 3 9.99MHz 2.7 V 5.5 V -40 °C +125 °C - - - -
신제품
RS 제품 번호 190-5914
제조사 부품 번호DS1100LZ-50+
제조사Maxim Integrated
₩9,231.80
Each (In a Pack of 2)
수량
Surface Mount Precision SOIC 1 8 1MHz 3 V 3.6 V -40 °C +85 °C - 8 (Minimum)mA -1mA -
RS 제품 번호 660-7761
제조사 부품 번호SE555D
₩675.80
Each (In a Pack of 5)
수량
Surface Mount Standard SOIC 1 8 - 4.5 V 18 V -55 °C +125 °C 12mA 200mA -200mA -
RS 제품 번호 162-6643
제조사 부품 번호NA555DR
₩128.65
Each (On a Reel of 2500)
수량
Surface Mount Standard SOIC 1 8 - 4.5 V 16 V -40 °C +105 °C 15mA 200mA -200mA 300 ns @ 15 pF
RS 제품 번호 165-8349
제조사 부품 번호NA555S-13
제조사DiodesZetex
₩179.80
Each (On a Reel of 2500)
수량
Surface Mount Precision SOIC 1 8 - 4.5 V 16 V -40 °C +105 °C - 200mA -200mA -
RS 제품 번호 185-0950
제조사 부품 번호BD9555FVM-CGTR
제조사ROHM
₩779.65
Each (On a Reel of 3000)
수량
Surface Mount - MSOP 1 8 - 4.5 V 42 V -40 °C +125 °C - 50mA -10mA -
RS 제품 번호 662-4012
제조사 부품 번호TLC556IDR
₩1,819.70
Each (In a Pack of 5)
수량
Surface Mount Standard SOIC 2 14 2MHz 3 V 18 V -40 °C +85 °C - 100mA -10mA -
신제품
RS 제품 번호 189-8665
제조사 부품 번호ICM7555IPA+
제조사Maxim Integrated
₩4,484.15
Each (In a Pack of 5)
수량
Through Hole Standard PDIP 1 8 - 2 V 18 V -20 °C +85 °C - 3.2mA 2mA -
RS 제품 번호 824-6986
제조사 부품 번호LMC555IM/NOPB
₩2,013.45
Each (In a Pack of 5)
수량
Surface Mount Reset SOIC 1 8 3MHz 1.5 V 15 V -40 °C +125 °C - -10mA 50mA 100ns
RS 제품 번호 165-4290
제조사 부품 번호MIC1555YM5-TR
제조사Microchip
₩864.90
Each (On a Reel of 3000)
수량
Surface Mount Precision, Standard SOT-23 1 5 5MHz 2.7 V 18 V -40 °C +85 °C - 20mA -20mA -
RS 제품 번호 732-1317
제조사 부품 번호SE555JG
₩10,629.90
Each
수량
Through Hole Standard CDIP 1 8 - 4.5 V 18 V -55 °C +125 °C 12mA 200mA -200mA -
RS 제품 번호 921-5541
제조사 부품 번호IS82C54Z
₩25,125.50
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
RS 제품 번호 788-334
제조사 부품 번호TLC555CD
₩1,129.95
Each
수량
Surface Mount Standard SOIC 1 8 2MHz 2 V 15 V 0 °C +70 °C - 100mA -10mA -