RadioShack® LM555 Precision Timer (8-Pin DIP)

Model #: LM555 | Catalog #: 2761723
Model #: LM555
Catalog #: 2761723


  • Precision monolithic timing circuits
  • Capable of producing accurate time delays or oscillation
  • Precision monolithic timing circuits capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle may be independently controlled with two external resistors and a single external capacitor.

    The threshold and trigger levels are normally two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control voltage terminal.

    • Maximum supply voltage, VCC: 18V
    • Output current, IO: ±225 mA
    • Input voltage, VI: CONT, RESET, THRES, TRIG - VCC
    • D package: 97
      P package: 85
    • Operating virtual junction temperature, TJ: 150°C
    • Case

    Battery Features
    Capacity UOM mAh
    Voltage Required Operation is specified for supplies of 5 to 15 V
    Enclosure Color Black
    Model LM555
    Product Type Radio
    Manufacturer Labor Warranty 90.0
    Manufacturer Parts Warranty 90.0
    Warranty Labor UOM days
    Warranty Parts UOM days
    #per pack 1.0
    Min Operating Temperature 32.0
    Max Operating Temperature 158.0
    Supported Languages English
    Mounting Kit Requires an 8 pin dip socket
    Operating Temperature UOM ┬░ C