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.

...
顯示內容 隱藏內容

篩選條件

正在檢視 21 - 40,共 163 項產品
Results per page
Description Price 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庫存編號 528-410
製造零件編號TLC555IDR
HK$5.66
/個 (每包:25個)
單位
Surface Mount Standard SOIC 1 8 2MHz 3 V 15 V -40 °C +85 °C - 100mA -10mA -
RS庫存編號 921-5374
製造零件編號ICM7555IPAZ
HK$6.015
/個 (每包:10個)
單位
Through Hole Standard PDIP 1 8 1MHz 2 V 18 V -25 °C +85 °C - 20mA -0.8mA -
RS庫存編號 923-6712
製造零件編號CD4541BE
HK$3.698
毎管:25 個
單位
Through Hole Programmable PDIP 1 14 0.1MHz 3 V 18 V -55 °C +125 °C 0.1mA 12.6mA -12.6mA 18000 ns @ 5 V
RS庫存編號 662-4668
製造零件編號CD4541BM
HK$3.451
/個 (每包:10個)
單位
Surface Mount Programmable SOIC 1 14 0.1MHz 3 V 18 V -55 °C +125 °C 0.1mA 12.6mA -12.6mA 18000 ns@ 5 V
RS庫存編號 620-0357
製造零件編號TLC555ID
HK$6.04
/個 (每包:10個)
單位
Surface Mount Standard SOIC 1 8 2MHz 3 V 15 V -40 °C +85 °C - 100mA -10mA -
RS庫存編號 528-416
製造零件編號NE556N
HK$3.821
毎管:25 個
單位
Through Hole Standard PDIP 2 14 - 4.5 V 16 V 0 °C +70 °C 30mA 200mA -200mA -
RS庫存編號 145-1051
製造零件編號CD4541BM
HK$3.451
毎管:50 個
單位
Surface Mount Programmable SOIC 1 14 0.1MHz 3 V 18 V -55 °C +125 °C 0.1mA 12.6mA -12.6mA 18000 ns @ 5 V
RS庫存編號 190-5952
製造零件編號ICM7556ISD+
HK$37.718
/個 (每包:5個)
單位
Surface Mount - SOIC 1 14 - 2 V 18 V -20 °C +85 °C - - - -
RS庫存編號 197-7574
製造零件編號TLC555CP
HK$6.098
/個 (每包:25個)
單位
- - PDIP 1 8 2MHz - - - - - - - -
RS庫存編號 188-9229
製造零件編號TS556IDTTR
HK$4.45
個 (在毎卷:2500)
單位
Surface Mount - SO 2 14 2.7MHz 2 V 16 V -40 °C +125 °C - 8mA -2mA 100 ns @ 10 pF
RS庫存編號 178-5489
製造零件編號TLC555MJG
HK$61.487
毎管:10 個
單位
Through Hole Standard CDIP 1 8 2.1MHz 2 V 15 V -55 °C +125 °C 350µA -10mA 100mA -
RS庫存編號 190-5920
製造零件編號MAX7375AXR805+T
HK$12.864
/個 (每包:5個)
單位
Surface Mount - SC-70 - 3 9.99MHz 2.7 V 5.5 V -40 °C +125 °C - - - -
RS庫存編號 145-7365
製造零件編號TLC556MD
HK$15.32
毎管:50 個
單位
Surface Mount Standard SOIC 2 14 2MHz 5 V 18 V -55 °C +125 °C - 100mA -10mA -
RS庫存編號 698-7127
製造零件編號DS1682S+
HK$46.91
單位
Surface Mount Programmable SOIC - 8 0.1MHz 2.5 V 5.5 V -40 °C +85 °C - - - -
RS庫存編號 196-2112
製造零件編號TS555IDTTR
HK$8.575
/個 (每包:10個)
單位
Surface Mount Monostable SO 2 8 2.7MHz 2 V 16 V -40 °C +125 °C - 1mA -0.3mA -
RS庫存編號 145-0078
製造零件編號TLC556CN
HK$10.70
毎管:25 個
單位
Through Hole Standard PDIP 2 14 2MHz 2 V 18 V 0 °C +70 °C - 100mA -10mA -
RS庫存編號 346-7024
製造零件編號TLC555IP
HK$23.10
單位
Through Hole Standard PDIP 1 8 2MHz 3 V 15 V -40 °C +85 °C - 100mA -10mA -
RS庫存編號 112-5368
製造零件編號NE556D
HK$4.62
單位
Surface Mount Standard SOIC 2 14 - 4.5 V 16 V 0 °C +70 °C 30mA 200mA -200mA -
RS庫存編號 885-5564
製造零件編號SA555S-13
HK$3.08
/個 (每包:50個)
單位
Surface Mount Precision, Reset SOIC 1 8 - 4.5 V 16 V -40 °C +85 °C - 200mA -200mA -
RS庫存編號 662-4674
製造零件編號TLC551CD
HK$17.63
/個 (每包:5個)
單位
Surface Mount Standard SOIC 1 8 2MHz 1 V 15 V 0 °C +70 °C - 100mA -10mA -