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Custom Silicon Solutions CSS555C-ID

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Jameco carries a large selection of 555 Timer Circuits used in a variety of timer, pulse generation, and oscillator applications. Whether you're looking for the LM555 - a highly stable device for generating accurate time delays or oscillation; or you'd like to follow along interactively with the 555 Timer Super Combo - a companion parts bundle created for those who want to experiment with the parts on a breadboard, we have you covered.

CSS555C Micropower Timer with Internal Timing Capacitor

The CSS555C is a micropower version of the popular 555 timer IC. It features an operating current under 5µA and a minimum supply voltage of 1.2V, making it ideal for battery-operated applications. A six-decade programmable counter is included to allow generation of long timing delays. Configuration data for the counter is held in EEPROM to maintain the standard pin count of eight. The analog circuits are temperature compensated to provide excellent stability over a wide ambient temperature range. A simple four-wire interface provides Read/Write access to the EEPROM. The CSS555C device includes an internal precision timing capacitor (CTI). Its value is trimmed to 100pF ±1%.


  • More than 10x lower power consumption than average 555 timers
  • Active current mode <5µA
  • Wide supply range: 1.2V to 5.5V
  • Temperature range: -40°C to +85°C
  • Internal 6 decade programmable counter
  • Internal 100pF user-adjustable timing capacitor
  • Monostable or astable operation
  • Extremely low transient switching current
  • Temperature stability: 0.005% per °C
  • Package: 8-pin DIP


  • Portable & Battery-Powered Systems
  • Precision Timing & Pulse Generation
  • Ultra Long Period Delay Generation
  • Single Cell Battery Applications
  • Ultra Low Power Timers
  • Pulse Width Modulation
  • Low Cost, High Reliability Applications

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