Features and Benefits

  • Improved 2nd Source (See 4th Page for Maxim Advantage)
  • Wide Supply Voltage Range: 2V to 18V
  • No Crowbarring of Supply During Output Transition
  • Adjustable Duty Cycle
  • Low THRESHOLD, Active-Low TRIGGER, and Active-Low RESET Currents
  • TTL Compatible
  • Monolithic, Low-Power CMOS Design

Product Details

The Maxim ICM7555 and ICM7556 are respectively single and dual general-purpose RC timers capable of generating accurate time delays or frequencies. The primary feature is an extremely low supply current, making this device ideal for battery-powered systems. Additional features include low THRESHOLD, active-low TRIGGER, and active-low RESET currents, a wide operating supply voltage range, and improved performance at high frequencies.

These CMOS low-power devices offer significant performance advantages over the standard 555 and 556 bipolar timers. Low-power consumption, combined with the virtually nonexistent current spike during output transitions, make these timers the optimal solution in many applications.


  • Missing Pulse Detector
  • Precision Timing
  • Pulse Generator
  • Pulse Position Modulation
  • Pulse-Width Modulation
  • Sequential Timing
  • Time Delay Generation

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.



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