CSS555C Programmable 555 Timer

CSS555C

Micropower Programmable 555 Timer IC
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 100pF ±1% timing capacitor.

 

Applications

  • 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
Key Features
  • Lowest power 555 timer by >10x – Active mode current <5µA
  • Wide operating range
  • 1.2V to 5.5V Supply Voltage
  • -40°C to +85°C Temperature Range
  • Internal 6 decade, programmable counter
  • Settings = 1, 10, 102, 103, 104, 105 and 106
    Multiplies delay time by up to 106
    Delay times from microseconds to days

  • Internal 100pF ±1% Timing Capacitor
  • User adjustable, 0.2pF resolution

  • Pin-for-pin compatible with 555 series timers Typical Application Circuit
  • Monostable or Astable operation

  • Extremely low transient switching current
  • “Break-Before-Make” output driver

  • Temperature stability – 0.005% per °C
 

 

 

We aim to keep our online data up to date – please contact us should you wish to confirm the current version.

 
Part Number

CSS555C-ID
CSS555C-IS

Description

Micropower Programmable 555 Timer IC
Micropower Programmable 555 Timer IC

Package

PDIP8
SO8